12V 100Ah Mini LiFePO4 Lithium Battery,15000+ Deep Cycles 1280Wh LiFePO4 Battery for RV, Marine/Trolling Motors, Solar System,Camping,Lawn Mowers,Home Backup Power,(100A Smart BMS)

I got this battery as an upgrade for my tent trailer. I initially installed it and I had all kinds of weird problems like low voltage and even a positive ground at one location? I wrote a strongly worded email to the company thinking the battery had caused it since everything worked before I installed it. I phoned an electrician friend and he told me it was likely a poor connection of bad ground wire. After a spirited and vocal field testing session...he was right! The battery was fine! I even took to my father's shop, where he has an actual battery load tester. To both of our surprises, it provides a FULL 100 amps under load and tested over 100 amp hours of capacity. Way above what I expected of such a budget battery. So that night I checked my email and found the manufacturer had immediately responded and was willing to bend over backwards with help and apologies! Offering to replace it, offer tech advice and make it right however they could?!?!? I then ate a full serving of crow and emailed then back with my findings. They were kind and wished me well, never being anything other than great! Needless to say, I've ordered 5 more for another project and they're working great too!!!

Long story short....I take care of a cat about 1 mile from my house, so I built a "remote" CatHouse using a highly insulated "cooler" as the house and installed two 12V 25 watt silicone heater pads purchased from Amazon for heating elements. The heaters are wired in series and pull about 1 amp (@12 volts). The heaters are sandwiched between two pieces of rubber backed carpet. (Two reasons to wire in series: they get way too hot wired separately, and I wanted to reduce power to 1 amp. Frankly, they still get too hot) The "house" has a real cat door installed, and it is pretty airtight. But this review is about the battery. I bought two batteries so I could swap them out. Battery gets changed at 7AM and 4PM. So, one battery has to run for 15 hours. I figured that a 25Ah battery would give plenty of cushion for this job. So far, after a couple of weeks, even in below zero temperatures these two batteries (which are enclosed in a separate enclosure for protection) are performing perfectly. I have quick disconnects installed so it literally takes seconds to swap them out. Much to my astonishment, when I bring them home to recharge, they read over 13 volts. This is mildly amazing. I know they are discharging right at 1 amp because I tested this system for days before bringing it to BigBoy (that is the cats name) for use. I have been taking care of him for over 7 years. I know the BMS system is working because I intentionally tried to recharge one the batteries when it was still too cold, and it refused to accept a charge until it warmed up. I have lots of solar "stuff" using LiFePO4 bats, and I have never seen batteries perform as well as these batteries do. I would also mention that these batteries are very heavy, and usually in the lithium "world" weight is a good thing. I'm confident that these batteries are AT LEAST what they claim to be, and I would certainly buy more of these if I needed 'em. I did not receive any compensation for this review, and I purchased both batteries at my own expense. Remarkable product, and extremely well priced. Highly recommended.

Have had this for a while to make sure it was a good choice, and it certainly is. I have it mounted in a carry case to power two video monitors, a computer, and a radio receiver.. and it lasts exactly as needed. Putting out the 25Ah just fine. It also Does have the overcharge and under voltage working on it BMS as advertised. When it hits the low voltage cut-off, it stops supplying full current. As soon as I attach the battery charger it is recognized and resets allowing the charge. Very Happy with this so far.

Works well with my trailer winch and solar charging setup. No complaints.

What I needed great quality

Arrived loose in the box with only a little bit of brown paper for protection. No foam, bubble wrap, or anything. No surprise then that it arrived with the top of the housing slightly coming off and registering so low of a voltage that my charger wouldn’t detect it. It also failed to accept a charge from jumper cables connected to a car. It’s always hard to tell which of these Chinese brands with gibberish names are ok and which aren’t, and unfortunately it’s impossible to get a deep cycle lithium battery any other way. I will note that I have never had a bad experience with either wattcycle or vevor. I’ve ordered batteries from both and both ship them in soft foam to protect them from being broken in transit. I only picked this one because it was the only one that would get here in time, but now I’m SOL.

Works great

GREAT customer service, I had one damaged battery out of 3 for my golf cart and the seller took care of it right away, the best customer service ever with fast replies and outstanding service, AND the batteries are good too, very powerful and light weight