ULTRAPOWER 4-Amp 14.6 Volt LiFePO4 Battery Charger,12.8 Volt LiPO Lithium Battery Charger,Smart Charger Maintainer for Cars,Motocycles,Golf Carts,UAV,Fishing Boat and Deep Cycle Batteries.

Back FROM THE DEAD 2! My voltage on my dead 12V lithium battery measured in the Millivolts not Volts!!. YIKES My other car etc. charger which says it charges LFP too which worked before on this same Lawn LifePO 12V Tractor Mower Battery did not work this time as voltage was too low for it. This little dedicated LifeP04 DID it! It resurrected the the battery. Possible my riding Mower is not charging this correctly or not at all like it did last year. Hmm anyway thanks!!!!

I specifically wanted the quick connect option so I can easily maintain a motorcycle battery . This leads me to the only gripe I have there are like four ways to connect and not the one that it should the ring terminals with the 10 Amp fuse to sae now I see a nice little cut in cost without any problems because I'm not sure why it seems we have power connections for a maintainer I would ditch the DC pin plug and the rca video style plug the claw and ring terminals and everything this thing is ment for can be achieved because the connection options are really solid nicer quality wires and plugs honestly so overall there really is nothing to complain about its simple plug and go with nice protection features .Thank youI also like there is not some goofy weird name on this product I'm a little picky on names that look like you just closed your eyes and hit the keyboard when filling out product name box. lolSending positive vibrations to everyone

works great for my 12 volt lfp batteries. yes things get a little bit warm that's normal. and for those griping that the left set of LEDs don't like that's because they're NOT LEDs. it's just a label that shows the charging states of the real LEDs to the right! 🧐. there's even a card that ships with it now that explains that.

I have a bike in a storage unit where there is no access to an AC outlet. I depleted the battery to 50% while fiddling with accessories. I recharged to 100% using this device plugged into a portable power bank with 42000 mAh capacity.It took about an hour, and the power bank had 15% left.The unit did get hot to the touch, but the temperature was steady, and the output was at 13.8V.It serves a purpose for my needs if the bike is not ridden for a while, with portability being the high point.As noted in other reviews, heat is not managed properly by design, and I don't expect this to get heavy use, but it worked fine for my needs, which hopefully will work again if needed.

My Lifepo battery was reading .75 volts (that is not a typo, less than 1 volt). I tried my Noco GB70 a couple times and nothing happened. I hooked up the UltraPower and the 4 green lights started to light up in sequence per instructions. After about 3 hours, it was still trying to resurrect the battery, but I went to bed. This morning I discovered it is completely charged and showing full power! I had given up on the battery, but thought I’d try the inexpensive UltraPower as a last resort and am glad I did. I agree that the gator clips are too small, but I did not experience any excessive heat on the unit. In fact, it seemed cool to the touch. Maybe it gets warm while working and then cools off. I Highly recommend this device! P.S. the Noco is fantastic for starting a dead car battery, not so much for my smaller LifePo trolling motor battery.

This was fantastic, very handy and sufficient for recharging my phone several times on one charge and for recharging my bike light when it is low. i said was because I lost the darned thing. and now I will buy it again.

Works very well with my collection of LiFePO4 batteries.

Charges very well, and it does it in the amount of time it says it will. I like it.