Haisito 20 Amp Lithium Battery Charger, 12V and 24V Lifepo4,Lead-Acid(AGM/Gel/SLA..) Portable Car Battery Charger,Battery Maintainer, Trickle Charger, and Battery Desulfator for Car,Boat, H-20-PRO

Batteries usually come not fully charged or at a "storage charge" so i needed a charger fast.Ordered this thing and it came in 2 days!pressed my battery type and it charged my battery in 5 hours Perfect.Thing is a bit loud, small compact enough to misplace but good quality.Came in handy when i needed it

Love this little charger. Has a great display. Easy to program for the kind of battery you're charging. It doesn't take up a ton of space on my workbench. I'll keep using it to charge 100AH lithium solar batteries until the solar panels are installed on our off-grid hunting shack.

These were good enough to get me to reorder 3 more! Excellent.

Works great the only bad thing is you can't see the screen on the sun

Upgraded travel trailer to LiFePo batteries and needed lithium battery charger. This charger works great on all my batteries. Used it on older battery and rejuvenated it.

The media could not be loaded. Update July 24 2024:Today I decided to charge a battery that discharged because I didn't drive the car for a week. I use the 100AH Lithium Ion Phosphate battery in my car to run a 12V refrigerator and noticed that during charging I had a very hard time opening my car doors. My car (2018 Honda Accord) has a key fob that stays in your pocket and you walk up and just pull on the handle and the door opens. Well, this doesn't work when I was charging. I had to unplug the charger from electrical outlet to open the doors. It appears that this charger causes radio interference with car key fobs and I also found out today that my remote thermometer that hangs on the tree outside would not update unit in the home during charging. So this charger is not well designed and causes radio interference. This is the first time I experienced this with a charger.Update Jan 16 2024:I did some more testing. The battery I use is exactly 230 AH (2.944 KWH) in capacity. Using this changer on the 20 amp setting (in reality almost 15 amp) I charged the battery to full. I ran a 10 amp load with a electronic load test device to drain the battery until the BMS (battery management system) cuts off the connection to prevent damage. Result was 230 AH as rated by manufacturer. I used the charger again and charged the battery to full after draining it and getting 230 AH (2.944 KWH) capacity. I measured how much electricity from my 120V AC wall outlet it takes to charge the battery back to 230AH (2.944KWH) and i was shocked. It took just over 17 hours and 3.901 KWH to get the battery recharged. So this charger wastes 25% of AC wall electricity to recharge batteries. I honestly don't know if that is normal or not but one thing for sure is that the fan blows out a lot of wasted heat during charging. I assume there is some loss in conversion but that seems a bit high. I am not 100% sure. I have to lower the rating to 1 star due to not charging at 20 amps and not appearing to be efficient and loud. See my video.Original review Jan 7 2024:This charger falls short on the max amp charge rating. For me charging my 230Ah LiFePO4 battery the 3 charge settings gave me approximately 5.2 amps, 9.6 amps and 14.7 amps. I only got close to 20 amps in the first few minutes of the charge. During the main charge phase it only hovered in the 15 amp range My battery has a recommended charge of 40 amps but charging LiFePO4 batteries at a slower rate will extend their life so that's why I bought the charger. I wanted to use 20 amps. I have not decided if I will keep it.

Puts out 20A just as advertised. Using it to charge LiFePO4 200Ah batteries, and it does great. The battery monitor I have confirmed it puts out the proper voltage and advertised current. Hope it lasts a while.

Muy bueno