LOSSIGY 12V 100AH LiFePO4 Lithium Battery with 100A BMS, 1280Wh Deep Cycle Power Supply, Perfect for Solar System, RV, Marine, Off Grid, Golf Cart,

I have two sets of 4 of these batteries and have never had an issue. I worked the math to make sure I never over tax the BMS (battery will die if BMS breaks connection). I have added other batteries to the system and all work as advertised.I'm on year 4 on one set and year 3 on the other set, and doing the "ball park" math for running my house off solar and batteries at night, they are still holding close to 100% of the 10KW-DC per set as of this writing. I'm happy with these and would recommend this maker to others.

No scams of added weight with this battery tests out good

My first battery worked okay, when it gets cold they won’t charge. Second battery I bought it was not good.

I love my Lossigy 12v 100ah battery I had it for a year and a half when it wouldn’t hold a full changer anymore. I messaged Rclithium (the seller) about it. They ask me many questions about temp. Load and uses etc. Because I use it for my 55 thrust tolling motor I was pulling 52 amps at full speed. I don’t run it at full speed all the time. I learned a constant 50amp load is the max this battery should be drawing, anything higher may cause battery life to fault. They gave me 2 options. First they would replace my battery but without a warranty, or credit me the price I paid for this battery and I would pay the different for a 200ah battery that can handle over 50 amps constant. So they did go the extra mile to make it right for me. I’m happy. 

This review is more focused on the seller RCLithium. Their customer service sucks. The batteries are decent and worked well-ish. I bought two in July of 2023. They recently failed after a brutal cold front we had. No, I was not charging them below freezing. They state they have a 5-year warranty on them. I sent RCLithium a chat and was given the runaround. I decided to buy two LiTime batteries instead. I've had a pretty decent experience with Lossigy batteries, minus this recent failure, but RCLithium the seller is bad. Bad to the point I decided to pay more and buy different batteries from a different seller. One final note, I could NEVER get these batteries to a 13.4-13.8 charge. EVER. The most, even after following RCLithiums instructions, was 13.3. And I have Victron SCC providing and regulating the charge. Take that for what its worth.

I originally ordered this product after watching a YouTube review done by DIY Solar with Will Prowse. Unfortunately the first battery I received from them failed out-of-box due to a faulty BMS. Confirmed this with two of my existing solar set-ups and was frustrated. HOWEVER, I reached out to the seller on Amazon and provided them with the details of my troubleshooting and the situation. Their response was prompt, courteous, and they immediately shipped me a replacement. When the new battery arrived a few days later, it worked FLAWLESSLY. The seller maintained good communication along the way, provided me with tracking information and a return mail label for the bad battery. They went above and beyond to make it right, something you don't see too often these days. My overall experience ended up being very positive. I would highly recommend this product and the seller, I will definitely purchase from them in the future!

I've owned the 300ah 12v Lossigy battery for 4 months. It's dead. I've tried every imaginable way to revive it. Can I get a replacement? FYI: Lossigy is ignoring me.

Purchased this battery to go in my vintage travel trailer. It’s unique size fit perfectly in the space I had. Item arrived in good condition and was well packaged. It arrived with 13.2 volts. I don’t use inverters or high power draw appliances so my draw down test involved leaving the lights on in the trailer. After charging the battery fully I commenced the test. After sitting for a few days after a full charge with no draw it settled on 13.45 volts. This doesn’t match up with online voltage and state of charge charts so I was a bit worried. After 4 days or so with the lights on my calibrated Victron smart shunt registered close to 190 AH drawn from the battery with a voltage of around 12.3. I was satisfied with its performance. I run LED lights, water pump, 12 volt TV, and blower fans for the heater. Power to spare.