NOCO - GENPRO10X4 - 4-Bank 40A Onboard Battery Charger
Designed with 4 banks, this charger outputs a total of 40 amps. With plenty of charging options available, have independent charging for each bank for more freedom in charging batteries on hand. The GENPRO10X4 is one of the top onboard chargers for marine batteries. With an IP68 waterproof rating, fully-sealed construction, and after countless tests, this charger has proven to withstand hours underwater. If you are an avid sailor this is an excellent choice to make sure your ship's power supply remains fully operational. Expert Battery Charge Management The GENPRO10X4 isn't just a trickle charger, but a battery maintainer with zero overcharge designed for automatic adjustment. It has the unique ability to monitor battery sulfation levels, automatically restoring lost battery performance and extending the overall battery lifespan. Charge batteries continuously without hovering to check if everything is running smoothly, NOCO has you covered.
Designed with 4 banks, this charger outputs a total of 40 amps. With plenty of charging options available, have independent charging for each bank for more freedom in charging batteries on hand. The GENPRO10X4 is one of the top onboard chargers for marine batteries. With an IP68 waterproof rating, fully-sealed construction, and after countless tests, this charger has proven to withstand hours underwater. If you are an avid sailor this is an excellent choice to make sure your ship's power supply remains fully operational. Expert Battery Charge Management The GENPRO10X4 isn't just a trickle charger, but a battery maintainer with zero overcharge designed for automatic adjustment. It has the unique ability to monitor battery sulfation levels, automatically restoring lost battery performance and extending the overall battery lifespan. Charge batteries continuously without hovering to check if everything is running smoothly, NOCO has you covered.
Designed with 4 banks, this charger outputs a total of 40 amps. With plenty of charging options available, have independent charging for each bank for more freedom in charging batteries on hand. The GENPRO10X4 is one of the top onboard chargers for marine batteries. With an IP68 waterproof rating, fully-sealed construction, and after countless tests, this charger has proven to withstand hours underwater. If you are an avid sailor this is an excellent choice to make sure your ship's power supply remains fully operational. Expert Battery Charge Management The GENPRO10X4 isn't just a trickle charger, but a battery maintainer with zero overcharge designed for automatic adjustment. It has the unique ability to monitor battery sulfation levels, automatically restoring lost battery performance and extending the overall battery lifespan. Charge batteries continuously without hovering to check if everything is running smoothly, NOCO has you covered.
Designed with 4 banks, this charger outputs a total of 40 amps. With plenty of charging options available, have independent charging for each bank for more freedom in charging batteries on hand. The GENPRO10X4 is one of the top onboard chargers for marine batteries. With an IP68 waterproof rating, fully-sealed construction, and after countless tests, this charger has proven to withstand hours underwater. If you are an avid sailor this is an excellent choice to make sure your ship's power supply remains fully operational. Expert Battery Charge Management The GENPRO10X4 isn't just a trickle charger, but a battery maintainer with zero overcharge designed for automatic adjustment. It has the unique ability to monitor battery sulfation levels, automatically restoring lost battery performance and extending the overall battery lifespan. Charge batteries continuously without hovering to check if everything is running smoothly, NOCO has you covered.
in 3 offers
The lowest price for NOCO - GENPRO10X4 - 4-Bank 40A Onboard Battery Charger right now is $685.07 at Amazon.com.au, compared across 3 retailers.
The all-time low was $523.46 on 13 July 2025 — today's price is 31% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 1 July 2026.
Last updated at 01/07/2026 12:07:36
NOCO Genius GENPRO10X4, 4-Bank, 40A (10A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator
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 GENPRO10X4 4-Bank, 40A Onboard Battery Charger - 10A Per Bank, 12V Waterproof
Delivery between 5–9 July $15.52
Genius Genpro10x4, 4-bank, 40a (10a/bank) Smart Marine Battery
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 basspro.com
This is a great battery charger for my two deep cycle batteries in my boat. All I have to do is run a cord to the back of the boat and plug it on to the charger, I kept an eye on it the first few times I used it to see how long it took to fully charge the batteries after trolling for 10-12 hours running catfish jugs. The charger gets a little warm as any of them do but its not bad at all. I just unplug it once the batteries are fully charged, which the charger will show that with the indicator light and put my cord away. I could leave it plugged in all the time but choose not to. Its a great charger and works perfect. Very compact and easy to mount out if the way in my battery compartment. I would recommend this to others. 10/10
originally posted on cabelas.com
This unit works beautifully, charges both my trolling motor batteries simultaneously and then switches to trickle charge to keep the at max charge. It also let me know i had a failing battery that wasn't holding a charge and only putting out 3 volts instead of 12. After replacing the battery, everything is fully operational. Very nice charging system, easy to install and easy to mount (2 screws)
originally posted on basspro.com
This was easy to install and setup. Having the individual lights to track each battery is great and I like that if I change the type of battery, its the simple press of a button for it to charge that battery correctly.Not sure on the long haul, but this was a great replacement for my original (2011).
| Specifications | |
| Amp Output | 10.00 |
| Amp Output 1 | 10.00 |
| Amp Output 2 | 10.00 |
| Amp Output 3 | 10.00 |
NOCO Genius GENPRO10X4, 4-Bank, 40A (10A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator
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 GENPRO10X4 4-Bank, 40A Onboard Battery Charger - 10A Per Bank, 12V Waterproof
Delivery between 5–9 July $15.52
Genius Genpro10x4, 4-bank, 40a (10a/bank) Smart Marine Battery
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!
This is a great battery charger for my two deep cycle batteries in my boat. All I have to do is run a cord to the back of the boat and plug it on to the charger, I kept an eye on it the first few times I used it to see how long it took to fully charge the batteries after trolling for 10-12 hours running catfish jugs. The charger gets a little warm as any of them do but its not bad at all. I just unplug it once the batteries are fully charged, which the charger will show that with the indicator light and put my cord away. I could leave it plugged in all the time but choose not to. Its a great charger and works perfect. Very compact and easy to mount out if the way in my battery compartment. I would recommend this to others. 10/10
This unit works beautifully, charges both my trolling motor batteries simultaneously and then switches to trickle charge to keep the at max charge. It also let me know i had a failing battery that wasn't holding a charge and only putting out 3 volts instead of 12. After replacing the battery, everything is fully operational. Very nice charging system, easy to install and easy to mount (2 screws)
This was easy to install and setup. Having the individual lights to track each battery is great and I like that if I change the type of battery, its the simple press of a button for it to charge that battery correctly.Not sure on the long haul, but this was a great replacement for my original (2011).
Puchased for.my new boat to charge 4 batteries (2two fortrolling motor, one for electronice and 1 for starter battery. Solid durable construction. Was.easily installed and wired in under an hour in cluding running extension charging wires to the boat stern. Works well for lithium, lead based and AGM batteries simultaneously with easy to used battery selector buttoms. Only down side is the charging wires are only 6 foot and NOCO does not offer an extension. I contacted the company customers support by email to inquiry how to extend the wires without voiding the.warranty and they responded within 48 hours.a nice feature that could.be added is for the charger to read the batteries to automatically select.the battery type to be charged. Overall I would.give.it 5 stars
Running a 36v trolling motor I wanted to upgrade my charger. Love having the maintenance option to keep my batteries full charged when I dont get to use the boat and the recovery mode could come in handy if a battery goes completely dead. Easy to install and can use this charger for any battery from a regular acid battery to lithium. I have the Noco Gen 3 on my other boat and would recommend these chargers to everyone.
GenPro 10x2.With charger programmed for Lithium battery, it only charges at 3amps or less or mimicking what a conventional lead battery profile would be. To get it to charge at 10A requires cycling through the different modes until Lithium is reached again. Then it will charge at 10A, but before reaching 80% SOC, the current will be reduced to under 1A. Therefore it can take over a day to charge a 100AHr battery.Battery in question has an app that can display a number of battery parameters, so it is easy to see how this charger is working. Or in this case, is not working properly for Lithium.The charge indicator lights are not accurate and misrepresent SOC for lithium. IE: Claims full charge yet actual state of charge is under 80%.If your Lithium batteries ... MoreGenPro 10x2.With charger programmed for Lithium battery, it only charges at 3amps or less or mimicking what a conventional lead battery profile would be. To get it to charge at 10A requires cycling through the different modes until Lithium is reached again. Then it will charge at 10A, but before reaching 80% SOC, the current will be reduced to under 1A. Therefore it can take over a day to charge a 100AHr battery.Battery in question has an app that can display a number of battery parameters, so it is easy to see how this charger is working. Or in this case, is not working properly for Lithium.The charge indicator lights are not accurate and misrepresent SOC for lithium. IE: Claims full charge yet actual state of charge is under 80%.If your Lithium batteries don't have reporting capabilities like the new "smart" batteries have, you cannot trust they are being charged properly or to full capacity using this charger alone.Charger configured with Bank 1: Lithium (Running Live Scope only) and Bank 2: Conventional lead starting battery.
Bought the Noco charger after my other charger quit working. One of the main reasons I went with this charger is because it will charge lead acid, AGM, and lithium batteries. I decided I was going to begin to use lithium batteries, so it seemed like the perfect fit. I really like the led lights, with the charge indication. The one thing I would recommend is making the charger wires longer. The charger sit so pretty much in the middle of my boat and the one set of wires wasn’t quite long enough to reach my starting battery. Not a deal breaker, but had to cut the terminal off, add some wire, and the put a new terminal back on. If the wires were about 2 feet longer, it would pretty much work on most boats and not have to splice wires.
So far so good. I have had this installed two weeks and will be putting it through the paces in two weeks when I have a trip planned where we fish hard for 4 days straight. This unit replaced my old three bank battery charger and what I love the most so far with the NOCO is that it shows me the charging status of each battery independently, which will help me identify if I have a week battery not holding its charge somewhere in my battery setup.
I bought this charger this past week and just was installing it in my Ranger and the cables from the charger to the battery are not long enough. The cables are only 6 feet long and I need 10 feet to go from the compartment to my batteries in the floor. It was also a pain in the butt mounting it in a small compartment when you can’t see the slot to drill the self tappers in.
Solid performer much like the Chevy 350. Millions made bought and sold. Industry standards are that for a reason. Will charge regular lead batts, lithium or AgMs. Customer service was exceptional when I had a bank go down on it. They replaced it and even provided me a 40% off coupon for a backup.
| Specifications | |
| Amp Output | 10.00 |
| Amp Output 1 | 10.00 |
| Amp Output 2 | 10.00 |
| Amp Output 3 | 10.00 |
