24V Lithium Battery Charger, 29.2V 5A LifePO4 Battery Charger, Trickle Charger, Battery Maintainer, with Cooling Fan Multiple Protection Functions, Designed for 24V LiFePO4 Rechargeable Batteries

***Note***I bought this because I changed battery chemistry in my power wheelchair. Switched from SLA to LifePo4. Best decision I've made in a very long time. I did have to de-solder/solder some connections to use the cord from my old charger that connects to the chair. I have a strong electronics, and electrical background, so this is "At your own risk" if you try this yourself.***Review***This thing does the job... period. I read reviews that it was loud, gave off immense amounts of Wi-Fi jamming EMF, and was far enough out of voltage to be worrisome. Glad I ignored them.Voltage wise, it was dead perfect. Using my multimeter, I could see voltage rise and current drop during charge, and it peaked at 29.2volts. Exactly as specified. Initial charging current was high, with nearly the full 5 amps going in. It was nice and steady, and charged the batteries to at least 90%, but not knowing the actual cell specs on my batteries, that's a guess. There is some EMF, but no more than I would expect. I did not experience Wi-Fi disruption, and the fan was less audible than my room air cleaner.I can tell you, in my use case, this is the most ideal charger I could find. I'm gutting it, and installing it directly in my wheelchair. I will say it feels kinda cheap in the hand, but the board looks really nice, and seems soldered well. Components are all off the shelf, as far as I can see too.Between the battery change, coupled with this charger, I have my freedom again.

Blocks wifi around it for several meters, only feeds about 4.25A, not 5. It does work, isn't very loud, and doesn't overheat. Recommended if your on a budget and don't care about RFI/EMI.

Came fast, was easy to use and works well.

I don't recall mine coming with instructions.Basically when not on the battery it's green. When attached to the battery, it turns red, until the battery is charged, back to green.So there's no much information provided.My only complaint is the terminal clips are large, so charging a smallerLIFEPO4 battery requires a little more carefulness.

For LiFePO4 batteries, the highest you normally want to charge is 3.65Vpc, which works out to 29.2V for your typical 8-cell 25.6V battery. This charger is out of spec at a measured 29.41V. The box indicates the correct 29.2V charging voltage. I even replaced the unit once in hopes the replacement would be in spec, I should have kept the first unit which was only reading 29.32V. I'm not sure if there's an adjuster inside, however I'm not really looking to DIY it right now so it's rather unusable for me. Might still be good for bulk charging if you can turn it off before you approach absorption and switch to something else (or just connect it in parallel to other chargers for bulk on a big battery, and turn this off once you're above 80% or so).

Worked as expected.