12V 20AH LiFePO4 Lithium Battery, Built-in 20A BMS, 5000+ Cycles Rechargeable Deep Cycle Battery, Perfect for Solar Power, Small UPS, Gate Opener, Fish Finder, Outdoor Camping

I am very impressed with this 12V 100AH LiFePO4 deep cycle battery. It has all of the features I was looking for in a deep cycle battery, including a long lifespan, high capacity, and built-in BMS. I have been using it in my RV for a few months now, and I am very happy with its performance. It has plenty of power to run all of my appliances, and it holds its charge for a long time. I would highly recommend this battery to anyone looking for a high-quality deep cycle battery.Here are some specific things I like about this battery:- Long lifespan: This battery is rated for 5000+ recharge cycles, which is much longer than traditional lead-acid batteries.- High capacity: The 100AH capacity provides plenty of power for even the most demanding applications.- Built-in BMS: The built-in BMS protects the battery from overcharge, over discharge, and short circuit.- Lightweight: This battery is much lighter than traditional lead-acid batteries, which is a major advantage for RV and marine applications.Overall, I am very pleased with this 12V 100AH LiFePO4 deep cycle battery. It is a great option for anyone looking for a high-quality, long-lasting deep cycle battery.

I love the life of the batteries and they are performing very well, absolutely no issues.

Love these batteries! Light weight, clean, charges well from my 600 Watts of panels and runs my 600 Watt Pure Sine inverter with an average of 120 Watts of load for longer than I've been able to time so far. If I get a sunny day, the battery bank is charged within 5 hours of the sun first hitting my panels, and it runs my office for easily 12 hours after the sun leaves the panels, but I have not yet run it to the point where it goes below about 13.0 Volts (30% charge roughly.) I suspect these batteries are going to serve me well for a long time. I have many other LiFePO4 batteries from many manufacturers, and most are quite good, but this one seems so far to be among my top two. Highly recommended.

It worked well for a 5 day camping trip . Heaviest use was for water pump and furnace fan and had plenty to spare. Only thing I'm not sure about is after I got home I charged it up and it sat for about 2 months and appeared to go dormant . No power at the terminals until I put a charge to it and it woke up. Charger indicated it was still at about 50% so not sure why it turned itself off. I will update if it happens again.

I bought this battery after a lot of research and reviews on lithiums via YouTube. I must say, this battery is awesome for the price! Last forever, super light, super consistent, and seems like it will last a long time. Just wish this one came with Bluetooth to monitor the battery. Still for the price I think this is the best choice!

The media could not be loaded. Amazon stepped in, and rectified the situation. But I would prefer buying from amz prime seller next time.I initially purchased this battery due to its attractive price point, hoping it would be a worthwhile investment. However, I received what appears to be a used battery. While the exterior of the battery looks brand new, the internal cells seem to show signs of use.First, the battery wouldn’t charge beyond 96%. I ran tests because both batteries I received discharged unusually fast. Typically, new LiFePO4 cells have internal resistance values between 1 mΩ and 10 mΩ when freshly manufactured and before significant use. Both batteries I tested showed internal resistance values exceeding 30 mΩ.To verify this, I used a resistance tester specifically designed for 100Ah lithium phosphate batteries, and I repeated the test multiple times. Additionally, I manually calculated the internal resistance using the following formula:**R_internal = V drop / Ioad = 0.04V / 1.0A = 40 mΩ****Test Results:**- Open-circuit voltage (OCV): 13.38V- Voltage under load: 13.34V- Current under load: 1A- Internal resistance: 40 mΩThis is not acceptable for a brand-new LiFePO4 battery.An internal resistance of 30-40 mΩ suggests the battery is not performing at peak efficiency, which is concerning for a supposedly new battery. If this battery has been in use for some time, the increased internal resistance indicates potential wear or degradation.**Seller’s response:**"The battery tester you used is not compatible. There’s nothing wrong with the battery. You can use a voltmeter to test it. Lithium batteries don’t have CCA."**My response:**The testing device I used measures the simple resistance of any battery, including lithium phosphate batteries, as demonstrated by the attached results. I also purchased a second tester to confirm the readings. Additionally, using basic math based on voltage and current under load, the battery’s resistance clearly exceeds 30mΩ. While it’s true the battery technically "works," it is not what I paid for—this is a used battery.I understand the price was lower than the competitors, but I still expect to receive a new product.

We camp a lot and run with solar panels as opposed to hauling a generator around. This is a great battery to keep charged up and we can hook our portable water pump to this battery to fill our water tanks on the camper. This battery is very easy to carry around as opposed to the old fashioned, it takes two people to carry battery. We can hook up our rice cooker to this as well and we think we can use our small Instant Pot also. So far so good and we are pleased with the purchase.