@ $320 these are a good deal. The bluetooth app works well. More ah capacity than other competitors. There are a couple of utube test/teardowns of these and they did well. I threw together this little setup (not finished in pic) in a mobile home I was re doing. It will run the A/c all day just fine.

Arrive 50% full but balanced. Runs my 12 volt roof AC on my camper van for hours. Charges up to 332AH. I did not care for app, but the Overkill Solar app works great. No issues. We will see how it holds up over the long run.

Great price. Fast, efficient shipping. Above all: responsive, knowledgeable, helpful tech support -- my every question was answered via email in less than six hours. Left me duly impressed.

As to the battery itself, the initial performance appears to be well within specs -- everything is working perfectly straight out of the box. Time will tell how well it lasts, but it's looking good so far.

My only tiny nit, if I had to come up with one, would be the foreign transaction fee on my credit card -- I did not realize that the charge would come from overseas. No biggie, just if I knew I'd use a different card.

Overall, I am seriously impressed with both the product and the service. Thank you TechCella!

Bought this battery to do some off grid and play with solar . The capacity is great, and having the BT app makes it easy to see what is going on. I can run my Starlink setup for days without charging. Very happy with it, and would buy again!

great product with a lot of accessory. compact design. works very well.

so far so good.

Like the way it was well package for this unit, but unfortunately when I set it up with my eg4 3000 inverter and turn it on, in about a few minutes the inverter shutdown on me, with a bad plastic burn smell. Retry to turn in on again in a few minutes and the only thing that turned on was the fan on the inverter; so for now all I can say about the Techcella is that it was well package with no cosmetic damages....

After a lot of online research, I chose the TechCella 100a BMS batteries as several reviewers had put them to load, life, and charge tests and found them to meet or exceed their specifications. I have upgraded several of my boats trolling motor from deep cycle lead acid to the TechCella LiFePo4 batteries. They are a fraction of the weight, deliver more storage power, and can be charged faster than the lead acid alternatives. They also offer a much longer service life. So far they have performed very well and I love the Bluetooth app which provides real time battery monitoring.

I got this 160AH battery a week or so ago. I haven't taken the boat out on the water yet, but I'm expecting big things and all of my electronics to last days ... I run 3 units at my help plus a livescope, so I've rewired my bow with 6 gauge wire and when i hooked it all up I was showing great voltage :) Can't wait to get out and use this thing to test out how long it'll last!