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

Why did you pick this product vs others?:Price was right seemed well build plenty of power will be part of a simple solar system that keeps the light on and battery charged in a tool shed far as quality only time and use will tell

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.

Seem to make great batteries I have 2 of the 100ah batteries. This one is going in a kayak for fish finder. Seems well made and the company responded and is sending out screws for the terminal which is great.

Light weight, easy to move if needed,great price for starting to see if solor is for you,can be connected in series to help with longer amp hours

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.

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.

I have had these batteries for 5 months, they are powering the coach in my Class A Motorhome. We are currently in the dead of winter and have been experiencing below freezing temps every night. The batteries are holding their charge and the heaters are doing their job. Highly recomended!

I have had these batteries (3) for six months, aside from an initial delay in shipment, I have been very happy with them. I bought them for the self heating feature, as I am using them for a campervan with solar panels in a northern climate. The self heating has worked when it goes below -0 degrees F. Do these batteries charge below 32 degrees F down to -4 degrees F, I have not tested that yet but they do work. The BMS with bluetooth application is great, it has a number of features and at least 60 feat of bluetooth range. So far the batteries have self balanced very well and the charge is consistent between all three. I have not done any heavy discharge cycles yet. Using them with my inverter, they can power my microwave and it did start my rooftop 20 year old dometic AC unit but I did not test how long it would run for with 3 batteries. Size and weight: They are group 31+ size, so they are big but not heavy.