Lucky Day Price: 168.99€ 12V 40A DC to DC On-Board Battery Charger

Installed 40A Renogy B-to-B charger in my A-Frame pop-up camper last year after upgrading the camper's \"house\" battery to a Lossigy 200ah LiFePO4 (Lithium-Iron-Phosphate) battery.? Reason?? The standard \"battery charge\" lead from the tow vehicle never supplied more than 8 amps, and so we had to drive for at least 12 hours to restore even 50% of the new battery's capacity!

This thing does what I need. But there was a SHOW STOPPER hiccup. Being able to call Renogy turned things around. I was dead in the water here in the South Pacific. Not a place to get bad stuck.

I decided to try something different and hook the ignition line to my number 4 auxiliary switch in my jeep gladiator.? Works perfect, this way I can manually turn it on or off for my 2 deep cycle marine batteries that are mounting in a bed box.? The auxiliary switches automatically turn off when you shut the truck off, so no oopses can happen from the operator.? I also live in Alaska so having the on/off seperate from just the vehicle starting is a plus.? Winter time the engine and components are already under a lot of stress until they get up to temp, no need to add an extra 40amp draw on a cold motor every time you start the truck.

i like this a lot, use it.? i like renogy a lot.? great support. used in my rv.? my usage scenario -? when i leave my rv sit for awhile, week or more, i disconnect my chassis battery to prevent drain down. i do this by turning a battery disconnect that disconnects the ground wire on the chassis battery.? here is what you need to know - if you disconnect the ground input wire, the unit turns itself on, drains down the chassis battery until dead, then faults itself, will not un fault until you completly disconnect all wires from it.? i verified this undocumented \"feature\" with renogy, they acknowledge it.? I consider it a problem that renogy should fix, at least document it.? but, when it works, it works well, charges just like i want it to. and, it has a switchable configuration such that i can turn it on and off when i want to,? that is how i use it, that is how i like it.? i have solar, a 3000w inverter charger, lithium batteries.? all renogy.? it works well for me.

Have been using this charger for charging my Aolithium 12 volts daily for over 2 months with no issues. I will provide an update over the summer months as that will be the real challenge for this charger!

Product works as intended easy installation, for a sprinter was very nice.

Installed this in my 05 Odyssey with a brand new Denso alternator. I purchased the 40amp version and I ran the wires from the starter battery to under the center console (through a small black grommet) and then ran the wires under the carpet and to the back of the van. Very easy to install and I contacted Renogy for instructions on the dip switches 1, 2, 3, 4 ON and 5 OFF (installing with a 200ah 12.8v Lifepo4 battery. I connected the D+ wire to the water pump fuse. I also connected two 60 amp inline fuse between both positive wires before connecting to the battery. Easy install and lots of power to use while on the road.

Muy buen cargador 3 horas de 0% a 100% 197 ah

Unit works exactly as advertised, I'm extremely satisfied.? We will see how long it lasts, time will tell.? My experience with Renogy products has been positive though so I'm confident it will last for awhile.