Car Battery GROUP 27 Lithium-ion Car Battery, 12.8V 80Ah 1300CCA LiFePO4 Automotive Battery For Car, 60 Months Warranty

First battery came defective, easy to communicate with seller, he sent a replacement after we provided pictures that shows the battery had issues.

Great battery - perfect replacement for my generator's battery that has conked out and won't even recharge. My fault for leaving it attached to the generator. I don't expect this to have any problems and it's really more of a convenience and back saver during power outages...

The voltage and capacity of this LifePo4 battery is exactly what I needed for my security system It fit the cabinet same as the original but, it's 1/2 the weight (or so). Since it has a built in charge controller I don't need to worry about overcharging it or causing damage. In fact, after being in service for around 8 hours, I checked it to make sure it wasn't getting hot or showing signs of overcharging and i found to to be very cool to the touch and normal. This type of battery handles charge cycles way better than an AGM battery and it works well. I've replaced my backup battery in my security system 2 times in 22 years of living here. This battery may very well be my last one as it should easily outlast the last 2. Update: It's been in service now for 1 week with no adverse issues noted. It's working fine and remaining cool to the touch, (consistent with surrounding surfaces).

One of the most important factors in evaluating a LiFePO4 battery is whether it meets the manufacturer's claimed capacity rating. This battery is described variously as having a 7AH or 7.2AH capacity. However, in two separate computerized tests, it failed to provide even 6AH of power. The manufacturer didn't explain the basis for the 7 or 7.2AH claim. Therefore, I tested it using a 1.5 amp discharge rate and a low-voltage cutoff of 11 volts. (These parameters are used by another manufacturer for its 6AH battery that does meet the claimed capacity.) For the first test, it had been fully charged but sat idle for a day. The computerized test indicated a capacity of 5.948AH. To verify this was an accurate result, I fully charged the battery overnight and immediately started a second test. This time, the indicated capacity was 5.979AH. Perhaps I received a defective battery or perhaps the manufacturer used some other discharge rate to support the claimed capacity. However, I would look elsewhere for a battery that meets advertised claims.

This 12V 7.2Ah Lithium LiFePO4 Battery seems to work OK. I used it to power a ham radio base station for several hours and it lasted the expected amount of time at a draw of about 1.3 Amps. The battery charged back up as expected using a 2 Amp LiFePO4 battery charger. The problem that I have with this battery is that the user's manual is lacking some important information, plus this is a Chinese battery, but the specification table in the manual has column headings that are written in German. And the manual does not give a figure for the continuous or instantaneous maximum allowable discharge rate, which is a pretty important thing to know when deciding whether or not a battery like this is suitable for a given purpose. The manual shows the "Applicable Charger" (you have to translate that column heading in the table from German to English) of "14.6V/1A-2A". For my money, I'd stick with a battery that comes with accurate, detailed electrical information.

This is pretty much a direct replacement for a 12V 7AH lead acid battery for UPS battery backups. It's the same form factor as the standard 12v7ah lead acid you'd use. I don't like that they called this 7.2ah, when most of these, INCLUDING THIS ONE, are really just a tad shy of 7 amp hours. Seems like an immature way to try and look better than the rest when it's the same excellent tech as any lifepo4 battery like this. That said, it works great, runtime is better than an older lead acit 7ah I have, and again, it works perfectly in UPS systems. Contrary to popular belief, the charge profile of lead acid batteries is totally compatible with lithium batteries like this, without damaging them or anything. It's lithium chargers you can't use on lead acid ones, so this is totally a PERFECT choice for a longer life battery that weighs less while storing the same energy. Lead acid batteried need to be replaced every 5 years and this should last for more than 10 before its replacement time again. Thank you!!!!

Performs as stated wired in parallel with others. It's a nice size to use by itself to power low wattage devices in areas juxtaposed to the main power station.

This battery is working well for me. The manual neglects to mention the max discharge rate which is a key piece of information when using this for higher-drain applications, like in an UPS. I will have to experiment myself to determine the max discharge rate before the BMS cuts out. Overall seems like good quality construction and has very common dimensions making it a drop-in replacement for lead acid batteries as long as the discharge rate is acceptable.