12V 100AH Group 24 Self-Heating LiFePO4 Lithium Battery with Touchable Smart Display & APP Monitoring, Built-in 100A BMS,1280W Load Power, 5000+ Cycles, Perfect for RV/Camper, Solar, and Off-Grid

Still no issues after many uses. The LCD screen is very useful to determine battery life. Lasts so much longer than my lead battery for my trolling motor. I get an easy 6-9 hours with my 40 lb thrust trolling motor.

Even with a surprising lack of overall reviews, I went ahead and (eventually) bought five of these Temgot 12v-100ah LiFePo4 batteries. I'm impressed with the unique onboard battery display, BMS and blue-tooth BMS connectivity. I found this battery to be one of few that offered a safe low-temperature 32-degree charging cutoff and impressive charge-cycles for the price-point (while I didn't want onboard battery-heater option). So far these batteries have passed all challenges for my solar RV. Several play-store BMS apps (besides the recommended app) function fine with the battery's BMS. Only been a couple months now, but impressed so far! Will likely get a few more!

On arrival it took about 9 hours to charge to full capacity. Let settle over night to let battery cells equalize. Impressed on how much power is available in battery. With ability to monitor small fluctuating currents with time to empty easily at hand on batter screen and Bluetooth app. App works acceptablely, with trick of logging out and logging back in to resume operation, app not needed for battery to function.Nice looking unit, looks and feels like high quality and is large and slightly heavy. 300 ah size is packed full of powerful DC. Not a cheap battery, value will be determined at later date. Longevity will be a big factor, so far so good 👍

Protective packaging was top notch. Instructions are easy to read and well laid out. Excellent value for a 100AH battery and weighs 1/3 the weight of an equivalent lead acid battery.

Well since the "review checker" flagged my review as fake, I'm providing a picture of my setup.Not a fake review but a active 3Kwh per day generating solar array feeding 11Kwh of batteries.Using this to power my hobbies I have seen a $20 a month decrease in my utility bills and this is only spring, and not the summer solstice.I searched high and low for a smart BMS battery that has low temperature charge cutoff. As a bonus this even has a LCD display right on the unit. It all works as it should so far. I've only cycled this battery 2 full charge/discharge cycles and the BMS works as it should and is indicating a very balanced cell state of only .002v difference between cells when fully charged so the cells are well matched and the BMS does its job of balancing while charging too. I also purchased the big mama Temgot 300Ah and ran that through 4 full cycles. The cells aren't as well matched as the 100Ah, but they fall into balance about 5ah into discharge and have been staying relatively in balance. Presently I have discharged it 3Ah from full (297ah capacity) and the cells are within .010v which is about max that you would want of an imbalance for longevity. Discharging it more to about 295 Ah capacity, I see all the cells fall into .006v which is quite acceptable and does follow this when static, but when under heavy discharge I see a difference of up to .01v between cells (150A load) The balancing feature seems to be better implemented on the 100Ah than the 300AH battery but during charging I have seen the active balancing enabled through the app indicating it is balancing, but from what I see it is only in the ballpark of .01v The battery is relatively new so we'll see how it handles after some more charge / discharge cycles.Keep in mind, other lithium cells do not even have the ability for you to see if there is a imbalance between cells, so having this ability really gives some insight to their longevity. I have tested both Temgot batteries for capacity and accuracy of the built in BMS touchscreen display and I am impressed with my measurements at room temperature indicate that they are within 2Ah of their rated specification.My measurements indicate that I had achieved the manufacturer rated usable capacity with a shutoff at 10.8vdc and using a rated LiFePO4 14.6vdc 20A charger for the 100Ah battery and a 40A charger for the 300A battery. Obviously if the battery sits unused for a period of time, you will not be able to achieve the rated output unless it was just freshly charged to full capacity. The batteries arrived with about 69-71% charge capacity. Charging to full indicated that they were closer to only 50% capacity. The battery casing is painted white/orange which can easily get scuffed to reveal a black plastic under the paint. The construction of the two batteries I purchased are flawless but I quickly scuffed the paint with testing/use. So far the only con I can hit these batteries on is that the BMS capacity monitor cannot really see any load smaller than 800ma or less. It merely does not trigger the BMS into thinking there is a load that needs to be monitored so the "odometer" capacity gauge is not engaged to count down indicating power is being consumed. Charging the battery is about the same with lower currents not indicating it is charging. This is demonstrated with a 3 amp constant charger that I have that shows a red light if there is any charging active. The BMS shows 0 current, no protection active, and the charger will have a red charge light for another 10-15 minutes before it falls to a dormant green light status indicating that charging is truly completed.The purpose use of these batteries is for off grid/ portable power applications.The bluetooth app is kinda clunky and I do not recommend setting a password if the BMS allows it as it can make things worse when monitoring multiple cells and I have yet to find a way to disable the password once it has been invoked as even putting a null 000000 does not disable it and needs six 0's entered to gain access to the BMS.So far I would buy again and I have as I own 5 batteries now all from Temgot.

UPDATE 6-13-24: After multiple firmware updates the app is now connecting easily and responds quickly to any changes. Have charged and discharged multiple times with no problems.Battery is high quality and functions fine on its own. Really nice color touchscreen on top of case. And a great value too. Except for the app I would give it 5 stars easily. The problem is you can only get the app to connect about 1 in 50 tries. Frustrating as that was one of the key features I liked. There has been 2 software updates in the app in the last week. Maybe they will eventually get it fixed.

IM NEVER BUYING ANOTHER AGM OR LEAD ACID BATTERY AGAIN, THIS BATTERY IS BATTER THEN EXPECTED

Large batteries with good power ratings. Haven’t put them through their paces, but so far they seem to work fine.