Renogy 20Amp 12V DC to DC Battery Charger For Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts,
【Smart 3-stage Charging】 The DC-DC battery charger will charge your house batteries from the starter battery by 3-stage charging (Bulk, Boost, and Float), to make sure it optimally and automatically charge to 100%. 【Compatible Multiple Battery Types】 Compatible with a multitude of alternator types, the 12v DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries. 【Various Protections For Ultra Safety】 Renogy battery charger offers Over-voltage Protection, Over-temperature Protection, and Reverse Polarity Protection to ensure the operation safety. Renogy dc to dc charger also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. 【Protect Your Starter Battery】The Renogy dc to dc battery charger is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator. 【Reliable Quality】The compact and robust design makes 12v battery charger suitable for all conditions. Compatible with a multitude of alternator types, the Renogy DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and even Lithium deep cycle batteries! Featuring a 3-stage battery charger and multiple electronic protections, users can feel confident that their batteries are being charged optimally and automatically.
【Smart 3-stage Charging】 The DC-DC battery charger will charge your house batteries from the starter battery by 3-stage charging (Bulk, Boost, and Float), to make sure it optimally and automatically charge to 100%. 【Compatible Multiple Battery Types】 Compatible with a multitude of alternator types, the 12v DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries. 【Various Protections For Ultra Safety】 Renogy battery charger offers Over-voltage Protection, Over-temperature Protection, and Reverse Polarity Protection to ensure the operation safety. Renogy dc to dc charger also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. 【Protect Your Starter Battery】The Renogy dc to dc battery charger is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator. 【Reliable Quality】The compact and robust design makes 12v battery charger suitable for all conditions. Compatible with a multitude of alternator types, the Renogy DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and even Lithium deep cycle batteries! Featuring a 3-stage battery charger and multiple electronic protections, users can feel confident that their batteries are being charged optimally and automatically.
【Smart 3-stage Charging】 The DC-DC battery charger will charge your house batteries from the starter battery by 3-stage charging (Bulk, Boost, and Float), to make sure it optimally and automatically charge to 100%. 【Compatible Multiple Battery Types】 Compatible with a multitude of alternator types, the 12v DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries. 【Various Protections For Ultra Safety】 Renogy battery charger offers Over-voltage Protection, Over-temperature Protection, and Reverse Polarity Protection to ensure the operation safety. Renogy dc to dc charger also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. 【Protect Your Starter Battery】The Renogy dc to dc battery charger is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator. 【Reliable Quality】The compact and robust design makes 12v battery charger suitable for all conditions. Compatible with a multitude of alternator types, the Renogy DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and even Lithium deep cycle batteries! Featuring a 3-stage battery charger and multiple electronic protections, users can feel confident that their batteries are being charged optimally and automatically.
【Smart 3-stage Charging】 The DC-DC battery charger will charge your house batteries from the starter battery by 3-stage charging (Bulk, Boost, and Float), to make sure it optimally and automatically charge to 100%. 【Compatible Multiple Battery Types】 Compatible with a multitude of alternator types, the 12v DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries. 【Various Protections For Ultra Safety】 Renogy battery charger offers Over-voltage Protection, Over-temperature Protection, and Reverse Polarity Protection to ensure the operation safety. Renogy dc to dc charger also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. 【Protect Your Starter Battery】The Renogy dc to dc battery charger is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator. 【Reliable Quality】The compact and robust design makes 12v battery charger suitable for all conditions. Compatible with a multitude of alternator types, the Renogy DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and even Lithium deep cycle batteries! Featuring a 3-stage battery charger and multiple electronic protections, users can feel confident that their batteries are being charged optimally and automatically.
in 3 offers
The lowest price for Renogy 20Amp 12V DC to DC Battery Charger For Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, right now is $139.00 at BIG W, compared across 3 retailers.
The all-time low was $122.00 on 26 Aug 2025 — today's price is 14% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 30 June 2026.
Last updated at 30/06/2026 15:43:23
Renogy 12V 20A DC to DC Battery Charger
Free delivery
Renogy 12V 20A DC to DC Battery Charger
Delivery between 3–15 July $10
Renogy 12v 20a Dc to Dc Battery Charger
Free delivery between 6–13 July
originally posted on ebay.com
Great product works really well bought one for my son as well. I needed this for my outback trip as the solar panel couldn't keep up especially on cloudy days, very happy with it!
originally posted on ebay.com
This is my second one I have purchased, one in my car 18 months ago,to charge a lithium battery and now Ive just upgraded my caravan battery to lithium so Ive fitted one to the caravan. Ive had no problem with the first one as it charges the lithium battery which runs the fridge in the car
originally posted on ebay.com
I have been using 2 of these for a few years now and have found them very good I have one on my bow thruster battery in the front of my motor cruiser and the other on my second battery in the back of my Ranger 100%
| Specification met | CE |
Renogy 12V 20A DC to DC Battery Charger
Free delivery
Renogy 12V 20A DC to DC Battery Charger
Delivery between 3–15 July $10
Renogy 12v 20a Dc to Dc Battery Charger
Free delivery between 6–13 July
Great product works really well bought one for my son as well. I needed this for my outback trip as the solar panel couldn't keep up especially on cloudy days, very happy with it!
This is my second one I have purchased, one in my car 18 months ago,to charge a lithium battery and now Ive just upgraded my caravan battery to lithium so Ive fitted one to the caravan. Ive had no problem with the first one as it charges the lithium battery which runs the fridge in the car
I have been using 2 of these for a few years now and have found them very good I have one on my bow thruster battery in the front of my motor cruiser and the other on my second battery in the back of my Ranger 100%
This is a quality made product. You don't see this type quality very often. I purchased this unit to supplement my solar system in my caravan. So if I run out of power I can change my lithium battery up with this unit. It has switches that are used to set the type of battery you are charging up. From AGM Lithium Gel etc.
Does the job the only thing I would say is its not very explanatory on dip switches . Over all happy with unit .
Easy to install in my vehicle works great . Just what I needed when the solar panel gets no sunshine. Excellent product.
Charger appears well made, was easy to install and in testing delivers the advertised charge rate of 20 amps into a lithium battery. Yet to test on a long run so cannot comment on overall performance and durability. Very well priced when compared to most of its competition.
It does what it is intended to do and is easy to install. It looks good. I am happy with it. I have just used it on a 3400 km trip.
does a good job and like the ability to lower the charge current output for different sized batteries
no indication for the lc + cable when connected which halves the charging amps d+ cable does have to be connected or unit wont work two different statements made No float charge setting for lithium batteries
| Specification met | CE |
