NOCO Genius GENIUS1 6V 12V 1Amp UltraSafe Battery Charger and Maintainer
The GENIUS1 is a 6-volt and 12-volt battery charger, battery maintainer, and battery desulfator rated at 1-amp for lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries. Meet the GENIUS1 - Similar to our G750, just better. It's 35% smaller and delivers 35% more power. And it's simpler and easier to use than ever before. Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries. Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - Charges dead batteries as low as 1-volt. Or use the all-new Force Mode that allows you to take control and manually begin charging dead batteries down to zero volts. Simple to set up and use - Plug-in, connect to the battery, select a charge mode, and start charging your battery. A fully-automatic, worry-free battery charger for year-round use. Restore your battery - Detects sulfation and acid stratification and restores lost performance for stronger engine starts and extended battery life. Compatible with all types of vehicles - Charge and maintain cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, boats, classic cars, hot rods, and more - you name it.
The GENIUS1 is a 6-volt and 12-volt battery charger, battery maintainer, and battery desulfator rated at 1-amp for lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries. Meet the GENIUS1 - Similar to our G750, just better. It's 35% smaller and delivers 35% more power. And it's simpler and easier to use than ever before. Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries. Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - Charges dead batteries as low as 1-volt. Or use the all-new Force Mode that allows you to take control and manually begin charging dead batteries down to zero volts. Simple to set up and use - Plug-in, connect to the battery, select a charge mode, and start charging your battery. A fully-automatic, worry-free battery charger for year-round use. Restore your battery - Detects sulfation and acid stratification and restores lost performance for stronger engine starts and extended battery life. Compatible with all types of vehicles - Charge and maintain cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, boats, classic cars, hot rods, and more - you name it.
The GENIUS1 is a 6-volt and 12-volt battery charger, battery maintainer, and battery desulfator rated at 1-amp for lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries. Meet the GENIUS1 - Similar to our G750, just better. It's 35% smaller and delivers 35% more power. And it's simpler and easier to use than ever before. Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries. Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - Charges dead batteries as low as 1-volt. Or use the all-new Force Mode that allows you to take control and manually begin charging dead batteries down to zero volts. Simple to set up and use - Plug-in, connect to the battery, select a charge mode, and start charging your battery. A fully-automatic, worry-free battery charger for year-round use. Restore your battery - Detects sulfation and acid stratification and restores lost performance for stronger engine starts and extended battery life. Compatible with all types of vehicles - Charge and maintain cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, boats, classic cars, hot rods, and more - you name it.
The GENIUS1 is a 6-volt and 12-volt battery charger, battery maintainer, and battery desulfator rated at 1-amp for lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries. Meet the GENIUS1 - Similar to our G750, just better. It's 35% smaller and delivers 35% more power. And it's simpler and easier to use than ever before. Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries. Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates. Charge dead batteries - Charges dead batteries as low as 1-volt. Or use the all-new Force Mode that allows you to take control and manually begin charging dead batteries down to zero volts. Simple to set up and use - Plug-in, connect to the battery, select a charge mode, and start charging your battery. A fully-automatic, worry-free battery charger for year-round use. Restore your battery - Detects sulfation and acid stratification and restores lost performance for stronger engine starts and extended battery life. Compatible with all types of vehicles - Charge and maintain cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, boats, classic cars, hot rods, and more - you name it.
in 35 offers
The lowest price for NOCO Genius GENIUS1 6V 12V 1Amp UltraSafe Battery Charger and Maintainer right now is $64.86 at Highside Shop, compared across 22 retailers.
The all-time low was $58.86 on 7 May 2026 — today's price is 10% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 8 June 2026.
Last updated at 08/06/2026 04:24:22
NOCO GENIUS1: 1A 6V/12V Smart Battery Charger – Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature
Free delivery
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Noco Genius 1 Battery Charger For Lead Acid 6 & 12V And 12.8V Lithium Batteries
Delivery between 12–22 June $10
NOCO Genius 1 Battery Charger 6V/12V 1 Amp
Noco Genius1 | 6v/12v 1-amp | Battery Charger + Maintainer
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Noco Genius Genius1 6v 12v 1amp Ultrasafe Battery Charger And
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Noco Genius1 | 6v/12v 1-amp | Battery Charger + Maintainer
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Noco Genius1 | 6v/12v 1-amp | Battery Charger + Maintainer
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Noco Genius1 | 6v/12v 1-amp | Battery Charger + Maintainer
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Noco Genius1 | 6v/12v 1-amp | Battery Charger + Maintainer
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Noco Genius Genius1 6v 12v 1amp Ultrasafe Battery Charger And
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
originally posted on autozone.com
First, connect the battery ends to battery. Second, plug into wall socket. It won’t work properly otherwise. Bought this 1 amp charger for my 8Ah lithium motorcycle battery. A LiFEPO4 battery should be charged at a slow rate. During the charging cycle, this has a desulfating feature and it also desulfates during recovery mode. It’s a desired feature for lead acid batteries, but detrimental to LiFePO4 batteries. Verified directly through NOCO, this does not desulfate when Lithium is selected. This 1 AMP CHARGER is not designed to charge a discharged car battery overnight, nor is it designed to jump start a car, like some reviewers who gave it a one star rating seem to believe. It took 2 days to fully charge and keep my battery maintained and for my requirement, it’s ... MoreFirst, connect the battery ends to battery. Second, plug into wall socket. It won’t work properly otherwise. Bought this 1 amp charger for my 8Ah lithium motorcycle battery. A LiFEPO4 battery should be charged at a slow rate. During the charging cycle, this has a desulfating feature and it also desulfates during recovery mode. It’s a desired feature for lead acid batteries, but detrimental to LiFePO4 batteries. Verified directly through NOCO, this does not desulfate when Lithium is selected. This 1 AMP CHARGER is not designed to charge a discharged car battery overnight, nor is it designed to jump start a car, like some reviewers who gave it a one star rating seem to believe. It took 2 days to fully charge and keep my battery maintained and for my requirement, it’s desirable. I purchased a NOCO GC009 X-connect SAE adapter to easily connect/disconnect the charger to my bike. In my experience, battery maintainers generally have short life expectancy. I changed to NOCO, and it even has a 5 year warranty when purchased through Autozone. If you want a fast charge for a lead acid car battery, purchase a higher amperage charger. If you require low, slow and maintained, you can’t go wrong with this. It’s simple, intuitive, has all the right features, and for the price it can’t be beat. So far, I couldn’t be more pleased.
originally posted on walmart.com
The good part is it does charge the battery. But that's all. There's nothing automatic about it. I bought a new car battery showing 12.88 volts (full charge) on my multi-meter and hooked up the Noco Genius 1 expecting it to flash green or be solid green indicating a full charge. Instead, it flashed red denoting it was less than 75% charged. I gave it a couple hours til it reached 13.18 volts and it was still flashing red and charging. The charger was hot and I disconnected it. Since it was cheap I'll keep it as a manual trickle charger. If you don't have a multi-meter your just guessing and could over charge the battery. If you have a battery that won't crank the car and need a faster charge, I suggest getting a 10 Amp charger or combination 10/2 with a built in ... MoreThe good part is it does charge the battery. But that's all. There's nothing automatic about it. I bought a new car battery showing 12.88 volts (full charge) on my multi-meter and hooked up the Noco Genius 1 expecting it to flash green or be solid green indicating a full charge. Instead, it flashed red denoting it was less than 75% charged. I gave it a couple hours til it reached 13.18 volts and it was still flashing red and charging. The charger was hot and I disconnected it. Since it was cheap I'll keep it as a manual trickle charger. If you don't have a multi-meter your just guessing and could over charge the battery. If you have a battery that won't crank the car and need a faster charge, I suggest getting a 10 Amp charger or combination 10/2 with a built in meter for a little more money. ( I have an older 10 Amp charger that works fine in a pinch.)
originally posted on ebay.com
I have the Genius1 and also the Genius5 chargers. Both work well and actually do what they say. They charge, float and maintain batteries well. The Genius5 has a battery recondition function (wet cell only) that actually seems to work. I have brought a couple of dead batteries back to life that 2 other so-called "recondition" chargers failed to do. They will charge wet cell, gel, AGM and lithium batteries, ( also 6v lead acid) but you have to select the battery type manually, by toggling through the selections. Getting it into the recondition or 6v mode is a little tricky, you have to hold down the button while toggling. Just keep doing that until the "repair" or "6v" indicator light comes on. I have had bad experiences with other "float" chargers over charging and ... MoreI have the Genius1 and also the Genius5 chargers. Both work well and actually do what they say. They charge, float and maintain batteries well. The Genius5 has a battery recondition function (wet cell only) that actually seems to work. I have brought a couple of dead batteries back to life that 2 other so-called "recondition" chargers failed to do. They will charge wet cell, gel, AGM and lithium batteries, ( also 6v lead acid) but you have to select the battery type manually, by toggling through the selections. Getting it into the recondition or 6v mode is a little tricky, you have to hold down the button while toggling. Just keep doing that until the "repair" or "6v" indicator light comes on. I have had bad experiences with other "float" chargers over charging and cooking the batteries. I check the voltage of the charger with a multi-meter during all the charge cycles and it is right where it should be all the time. For instance, the float voltage for my AGM batteries is 13.8v as specified by the battery manufacturer. I just put batteries on the charger, set it and forget it for days, weeks or months. Life is good. My only very minor complaints are: they use a proprietary connector on the cable instead of the good old standard SAE one the rest of the world uses, so all my cables will not work with it without modifacation. I have since removed their connectors and replaced with SAE. The Genius 1 is a wall box instead of an inline unit, so it is difficult to plug into an outdoor weather box without an adapter or extension cord.
| IP Rating | IP60 |
| DC Fuse Size | 2 Amp Mini Blade Fuse |
NOCO GENIUS1: 1A 6V/12V Smart Battery Charger – Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Noco Genius 1 Battery Charger For Lead Acid 6 & 12V And 12.8V Lithium Batteries
Delivery between 12–22 June $10
NOCO Genius 1 Battery Charger 6V/12V 1 Amp
Noco Genius1 | 6v/12v 1-amp | Battery Charger + Maintainer
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Noco Genius Genius1 6v 12v 1amp Ultrasafe Battery Charger And
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
First, connect the battery ends to battery. Second, plug into wall socket. It won’t work properly otherwise. Bought this 1 amp charger for my 8Ah lithium motorcycle battery. A LiFEPO4 battery should be charged at a slow rate. During the charging cycle, this has a desulfating feature and it also desulfates during recovery mode. It’s a desired feature for lead acid batteries, but detrimental to LiFePO4 batteries. Verified directly through NOCO, this does not desulfate when Lithium is selected. This 1 AMP CHARGER is not designed to charge a discharged car battery overnight, nor is it designed to jump start a car, like some reviewers who gave it a one star rating seem to believe. It took 2 days to fully charge and keep my battery maintained and for my requirement, it’s ... MoreFirst, connect the battery ends to battery. Second, plug into wall socket. It won’t work properly otherwise. Bought this 1 amp charger for my 8Ah lithium motorcycle battery. A LiFEPO4 battery should be charged at a slow rate. During the charging cycle, this has a desulfating feature and it also desulfates during recovery mode. It’s a desired feature for lead acid batteries, but detrimental to LiFePO4 batteries. Verified directly through NOCO, this does not desulfate when Lithium is selected. This 1 AMP CHARGER is not designed to charge a discharged car battery overnight, nor is it designed to jump start a car, like some reviewers who gave it a one star rating seem to believe. It took 2 days to fully charge and keep my battery maintained and for my requirement, it’s desirable. I purchased a NOCO GC009 X-connect SAE adapter to easily connect/disconnect the charger to my bike. In my experience, battery maintainers generally have short life expectancy. I changed to NOCO, and it even has a 5 year warranty when purchased through Autozone. If you want a fast charge for a lead acid car battery, purchase a higher amperage charger. If you require low, slow and maintained, you can’t go wrong with this. It’s simple, intuitive, has all the right features, and for the price it can’t be beat. So far, I couldn’t be more pleased.
The good part is it does charge the battery. But that's all. There's nothing automatic about it. I bought a new car battery showing 12.88 volts (full charge) on my multi-meter and hooked up the Noco Genius 1 expecting it to flash green or be solid green indicating a full charge. Instead, it flashed red denoting it was less than 75% charged. I gave it a couple hours til it reached 13.18 volts and it was still flashing red and charging. The charger was hot and I disconnected it. Since it was cheap I'll keep it as a manual trickle charger. If you don't have a multi-meter your just guessing and could over charge the battery. If you have a battery that won't crank the car and need a faster charge, I suggest getting a 10 Amp charger or combination 10/2 with a built in ... MoreThe good part is it does charge the battery. But that's all. There's nothing automatic about it. I bought a new car battery showing 12.88 volts (full charge) on my multi-meter and hooked up the Noco Genius 1 expecting it to flash green or be solid green indicating a full charge. Instead, it flashed red denoting it was less than 75% charged. I gave it a couple hours til it reached 13.18 volts and it was still flashing red and charging. The charger was hot and I disconnected it. Since it was cheap I'll keep it as a manual trickle charger. If you don't have a multi-meter your just guessing and could over charge the battery. If you have a battery that won't crank the car and need a faster charge, I suggest getting a 10 Amp charger or combination 10/2 with a built in meter for a little more money. ( I have an older 10 Amp charger that works fine in a pinch.)
I have the Genius1 and also the Genius5 chargers. Both work well and actually do what they say. They charge, float and maintain batteries well. The Genius5 has a battery recondition function (wet cell only) that actually seems to work. I have brought a couple of dead batteries back to life that 2 other so-called "recondition" chargers failed to do. They will charge wet cell, gel, AGM and lithium batteries, ( also 6v lead acid) but you have to select the battery type manually, by toggling through the selections. Getting it into the recondition or 6v mode is a little tricky, you have to hold down the button while toggling. Just keep doing that until the "repair" or "6v" indicator light comes on. I have had bad experiences with other "float" chargers over charging and ... MoreI have the Genius1 and also the Genius5 chargers. Both work well and actually do what they say. They charge, float and maintain batteries well. The Genius5 has a battery recondition function (wet cell only) that actually seems to work. I have brought a couple of dead batteries back to life that 2 other so-called "recondition" chargers failed to do. They will charge wet cell, gel, AGM and lithium batteries, ( also 6v lead acid) but you have to select the battery type manually, by toggling through the selections. Getting it into the recondition or 6v mode is a little tricky, you have to hold down the button while toggling. Just keep doing that until the "repair" or "6v" indicator light comes on. I have had bad experiences with other "float" chargers over charging and cooking the batteries. I check the voltage of the charger with a multi-meter during all the charge cycles and it is right where it should be all the time. For instance, the float voltage for my AGM batteries is 13.8v as specified by the battery manufacturer. I just put batteries on the charger, set it and forget it for days, weeks or months. Life is good. My only very minor complaints are: they use a proprietary connector on the cable instead of the good old standard SAE one the rest of the world uses, so all my cables will not work with it without modifacation. I have since removed their connectors and replaced with SAE. The Genius 1 is a wall box instead of an inline unit, so it is difficult to plug into an outdoor weather box without an adapter or extension cord.
I have a truck that mostly sits in the garage. Every time I need to back it out of the garage, the battery is dead. I know that just sitting isn't good for batteries, not to mention this battery is several years old. Now keep in mind, this is a large amp battery for a SUV, which was so dead, a turn of the key and I didn't even get lights on the dash. I stuck this little charger on it and it took a day and a half, but it charged completely. Ok, now I'm beginning to get a tad impressed. I have two of those old type chargers, you know the ones that after a while you can hear the acid boiling inside the battery, and the battery is getting really hot... you know the chargers that tell you not to leave it on your battery for any extended period of time as this might ... MoreI have a truck that mostly sits in the garage. Every time I need to back it out of the garage, the battery is dead. I know that just sitting isn't good for batteries, not to mention this battery is several years old. Now keep in mind, this is a large amp battery for a SUV, which was so dead, a turn of the key and I didn't even get lights on the dash. I stuck this little charger on it and it took a day and a half, but it charged completely. Ok, now I'm beginning to get a tad impressed. I have two of those old type chargers, you know the ones that after a while you can hear the acid boiling inside the battery, and the battery is getting really hot... you know the chargers that tell you not to leave it on your battery for any extended period of time as this might (will) damage the battery (possibly even start a fire). Well... no more. I'm a total convert now to using smart chargers, and this one seems especially good. I really hope I don't find some little something that breaks 6 months from now, cause I really like this charger! It seems very well designed and made and most of all, it works great. The only negative I can find, it has a single button to select one of several charging modes, and LED's to indicate which option you have chosen, and those LED's are pretty much self explanatory, as well as an advanced mode where you have to push and hold the single button to enter advanced charging mode. For example, if your battery is so bad, the charger cannot detect there is even a battery hooked up, you can tell it to go ahead and start charging anyway which is a really nice feature. As another reviewer mentioned, when you need to use some of the more advanced functions, if you've lost the booklet, well... good luck. The multi-language booklet briefly explains all of the options, what the LED's mean, and that's pretty much it, verbose it isn't.. It comes in a really nice packaging, like you're really getting something ( and you are), the unit itself seems well made and thought out, you would think a bit more of an effort would have been put into the manual. But, perhaps the product speaks for itself... and it does. And, after all most users will hook it up to their 12 volt car/boat/motorcyle battery, plug it in, select the regular 12v battery option, and that's all most will ever need. Once the battery is charged completely, the charger senses that, and switches automatically to just maintaining the battery. If you loose power while charging (or maintaining), this charger just picks up right where it left off, so there is no worries about pushing buttons or selecting modes, it knows what you were doing before, and starts right back up with doing it again. Am I glad I got it: Yes Would I buy it again: Yes.
Several reviewers complained it takes many hours or days to charge a dead battery. It will charge a dead battery but it’s designed intent is to maintain the battery. If you don’t drive your car, motorcycle or lawn tractor often this will keep the battery charged without over charging it.The first time you use it it goes into standby mode and does nothing. You have to select the mode you need. Then it checks the battery and begins charging. If you have a newer computer controlled car there is something always running. After a couple of weeks your battery will be dead. You need something like this.
Nice charger, easy to use. Temperature compensation is a critical function, and the fact that this unit is clearly indicating that it has that functionality is excellent. The owners manual recommends using the 1A unit for batteries up to 30Ah. That means it’s not really intended for car batteries. Even the 2A unit is rated in the manual for 40Ah batteries. I get it that if you have a battery at 50% DoD or more, the charger may take too long and time out. But speaking from experience, on a car that you drive, keep the battery topped up, and just want to long term maintenance/float charge, a 1A or 2A charger should be just fine, even if much larger. I have used this on 90-120Ah group 49 and group 29 batteries. But that said, I wouldn’t expect this to fully charge a ... MoreNice charger, easy to use. Temperature compensation is a critical function, and the fact that this unit is clearly indicating that it has that functionality is excellent. The owners manual recommends using the 1A unit for batteries up to 30Ah. That means it’s not really intended for car batteries. Even the 2A unit is rated in the manual for 40Ah batteries. I get it that if you have a battery at 50% DoD or more, the charger may take too long and time out. But speaking from experience, on a car that you drive, keep the battery topped up, and just want to long term maintenance/float charge, a 1A or 2A charger should be just fine, even if much larger. I have used this on 90-120Ah group 49 and group 29 batteries. But that said, I wouldn’t expect this to fully charge a dead and depleted battery any time soon. This is great for maintenance and float for a seldom used car. It shouldn’t be your only charger if you are planning to use it to revive dead or depleted batteries - the 5 or ideally the 10A version should be used for that. One star removed because of two things: First, I’d have loved to have a small led setup like the 2A and higher design. The blinking led setup on the 1A unit is highly functional, but I’d prefer the multi-tier indicators, even if very small. Second, the 12V SAE barrel connector is the standard connector. NOCO adapters are expensive and frankly, not that great. Plus then I have another connection point to add resistance and potential moisture ingress. I wish they used standard SAE plugs, and if anything, make a more waterproof or definite coupling for that plug.
Reading some of the negative reviews, obviously those guys don't understand what a trickle charger is. Your battery is not going to be jumped, or charged right away. It takes a day or two or three depending on how low the battery is. Patience grasshoppers!!!In my case, the car battery was totally dead. In fact, graveyards are more lively than my battery was. It took the charger 2 1/2 days to fully charge the battery. I expected it, planned for it, and had no problem with it. It's resurrected from the dead now, just in time for Halloween. It's alive!!!! (insert evil mad scientist laugh).Nice little trickle charger for the money. I would recommend it without hesitation.
Very compact, full featured charger/maintainer which replaced the Noco G750, which I have two. Noco redesigned the Genius 1 to be smaller and, unlike the G750, it doesn't block the other wall plug opening when in use. It's width will cover (2) outlet openings on a power strip though, unless you use one designed with transformer plug spacing. Compared against the popular Battery Tender Jr, the Genius 1 is slightly more powerful at 1amp VS 0.75; adds dedicated charging modes for """"""""regular"""""""" flooded or gell; AGM and Lithium-Ion batteries; automatic desulfation; automatic temperature compensation which changes the charging algorithm; and the ability to charge 6V systems too. It's also California certified as an energy efficient charger - CA has newer ... MoreVery compact, full featured charger/maintainer which replaced the Noco G750, which I have two. Noco redesigned the Genius 1 to be smaller and, unlike the G750, it doesn't block the other wall plug opening when in use. It's width will cover (2) outlet openings on a power strip though, unless you use one designed with transformer plug spacing. Compared against the popular Battery Tender Jr, the Genius 1 is slightly more powerful at 1amp VS 0.75; adds dedicated charging modes for """"""""regular"""""""" flooded or gell; AGM and Lithium-Ion batteries; automatic desulfation; automatic temperature compensation which changes the charging algorithm; and the ability to charge 6V systems too. It's also California certified as an energy efficient charger - CA has newer standards exceeding Energy Star. Battery Tender Jr High Efficiency also meets these CA standards, but at a higher cost than the regular Jr. I'm using this as a maintainer on my Corvette, which is usually connected to a CTEK MUS 4.3. For maintenance charging, the CTEK 4.3 is overkill. I liked that this Noco has a dedicated AGM battery charging mode (charges and maintains at a higher voltage), which I need, and seems to keep up with the natural parasitic draw of the Corvette's computers. I see the Noco switch into maintenance mode 1-2x per day for about 10 minutes, indicated by a slowly blinking green led. BTW, all display indicators are extremely bright - same experience with the Noco G750, you can easily see all indicators in direct sunlight. For around $30, this is a true bargain.
Purchased as a low current battery maintainer for a 12V battery in a car being parked for a few months. The whole product feels high quality. The clips, in particular, feel very high quality and secure well to the posts. Operation is easy. I was happy to see that it remembers the previous setting. That means it will start up in the last used mode after a power outage. My battery was healthy. So I have no experience with any of the more advanced features, but it is nice to know that it may help detect any future problems. I was able to observe it transition from active charging to trickle charging (status light goes from red to green). The device body does get warm during active charging, but is noticeably cooler when trickle charging.
| IP Rating | IP60 |
| DC Fuse Size | 2 Amp Mini Blade Fuse |
