LiTime 12V 20A Lithium Battery Charger, 14.6V Output AC-DC, 0V Activation

I had forgotten to turn off my RV battery kill switch and left my 12vdc mini fridge running overnight. I have two GRNOE 100Ah, 12vdc lithium batteries that drained down to 9.27vdc!. I was worried that I ruined two brand new batteries. However, fortunately the batteries have a built in BMS (battery management system) which protects against both low voltage and over charging damage. At first I thought I could just plug my RV in to electric power and charge the batteries but I learned that would not work because of the BMS shut down. I needed something to “wake up” the BMS and the best way is to use a lithium battery charger. I chose the LiTime 12V, 20A lithium battery charger because it matches my battery manufacturer’s specified charging voltage and current exactly. This unit proved its worth. I reconnected my batteries, tested my RV mini fridge and everything started working again- what a relief!. There are other premium lithium chargers available but this one was all that I needed. Yeah, the fan is a little noisy but its a tiny fan that needs to keep the unit cool. Just be sure to follow the directions exactly and you should be fine. It worked for me, cheers!

This 20 Amp charger does an excellent job with my 100 Amp lithium battery. It can fully recharge my battery back to 100 percent in about 4 hours. Highly recommend.

Bought alongside a MarsEnergy LifePo4 battery, and so far am happy with its performance. Recharges at a good rate and shuts off when done.

The fan is not quiet but not obnoxious. It charges a 100amp/hr battery at an expected rate. The 50 amp power poles are nice. I wired a set to the battery and connects/disconnects with a hearty “click”. I have recharged my 100amp/hr about 10 times and everything is working as it should.

Works great! Good value. 👍

I purchased the charger to re-charge my LiFePO4 12V 100 AHr battery. The charger uses a 14.6V output to charge the battery. This is a great, relatively fast way to charge LiFePO4 batteries (which charge using different charging profiles than lead-acid batteries). But it couldn't charge my battery. This was no fault at all with the charger! It was the BMS (battery management system) on my battery that blocked a 14.6V input. The BMS actually enforced an over-charging limit of 14.4V to prevent damaging the cells (their literature said a 14.8V limit). The BMS over-voltage production value could not be changed. The LiTime charger itself was well constructed with a heavy wall cord and came with battery charging cables. All the specs were aligned with those needed by LiFePO batteries. The maximum charging voltage of the charger 14.6V could not be lowered or modified. Upon contacting the tech people at LiTime (then it was AmpereTime), they responded quickly and thoroughly (especially Nikki) with technical guidance and things to do, and ultimately to facilitate the return of the charger. From their perspective, 14.6V is a widely adopted maximum and working with all of their batteries. Unfortunately, the BMS on my battery was more conservative in choosing a number that was lower (the battery company said they were adjusting that value in future batteries). LiTime sent me a return authorization (pre-paid) and offered me a discount on a future purchase for the inconvenience that wasn't their fault. So my support communication was excellent. This was quality performance on their part. In the meantime, I found a charger that was more adaptable and offered bluetooth software connection to my iPhone that allowed for adjustment of the charging parameters (at a much higher price than the LiTime charger).

This charger does follow the perfect charging profile, as I watched the voltage and current using my inline meter. My battery is pretty expensive and I want to use it for a long time. That is why I bought this charger, as it is designed for LiFePO4 batteries (mine has an internal BMS). Easy setup, easy connection, easy usage. The charger does all of the thinking, from start to finish, so that the battery gets fully charged, no matter what the starting state of discharge. And a few words about the manual are in order: this is unusually good, very readable typeface, color illustrations (there are red / green LEDs and red / black wires, and the pictures match the product). The manual goes into a reasonable explanation of the charging profile, T1 T2 T3 as described, which I was able to verify with my setup while charging my battery. The cables to the battery did get slightly warm (to the touch) which is expected while running 20 amps through them for this period (mine was 2.5 hours). You would never notice it unless you checked though, which is fine. And the main charger unit has a fan that is under automatic control, to keep air flowing as needed. My opinion: I like everything about this charger, and I am 100% happy that I bought it and expect to use it for a long time.

Works very well

Très bonne qualité, très efficace

Vaut chaque dollars. Chargeur tout en métal avec des composantes pour usage intensif. Fait pour travailler fort pendant de longues années. Un vrai chargeur lifepo4

Charge très bien notre batterie Un peu bruyant mais ça va

The unit came as listed. Good quality unit that works well.

Très satisfait, le fait qu'il faut brancher à l'aide d'un connecteur c'est beaucoup plus facile et pratique.