12V 100AH Low Temp Cutoff 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

I removed the lead acid battery and connected this LiFePO4 battery into my travel trailer. In order to get it to charge fully, I also had to change out the WF-8735P to a WF-8740AD converter (converts incoming AC power to DC power to store in the battery). Just a side note: the WF-8740AD, which is advertised to auto detect the type of battery it's connected to, did not automatically switch over to LiFePO4 charging mode. I had to call the company (WFCO) and convince them to send me a "jumper" that plugs into their unit to get it to switch over to LiFePO4 charging mode. Of course, the company that makes the defective converter is not the company that makes this battery. The battery itself has performed very well so far, charging the trailer's fridge, lights, fan, and water pump. I get about two days worth of off-grid trailer power now, compared to only one day with the old lead acid battery. Another feature I like about this battery is its LED view screen. Now I can easily check the battery voltage, percent of charge, incoming current, outgoing current, and even the state of each of the four battery cells. Very convenient! I can't speak about the battery's self heating feature, because we haven't had anywhere near freezing weather here. Hopefully that will activate if I go somewhere cold. Overall, I'm pleased with this battery, and the price was right for a self-heating, LiFePO4 battery.

These are great batteries and I have purchased 5 of them for a home power backup system. They have been working great and I really like having the display on the battery to easily check status. I also use the Bluetooth app to watch the batteries from the house. I also like having the cycle counter so I can track how far I am into the warranty. These work so nicely that I even decided to buy a set of Temgot batteries for my boat. Give me that LiFePO4 baby!

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 .01vThe 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.

We are very happy with our new lithium battery. It has Bluetooth capability, which helps to keep track of its levels. It also has an information lcd screen that we find very helpful. So far, it’s functioning very well.

Replaced 2 lead-acid batteries in my RV with one of these. Easily saved 50lbs of weight, and this battery should have far longer lifespan. I especially like the screen on the battery which gives all the details about charging, draining, battery temp, and more. The Bluetooth app has worked every time for me too. Very happy with this battery so far.

Great battery a lot of power, I use it as a secondary battery for my solar power station,

Ordered 2 of these to replace 6 lead acid golf cart batteries in my RV. 2 of these fit perfectly in the battery tray. Almost 1/2 the weight and 3-4 times the usable battery capacity. The cells in both batteries are pretty nicely matched, 0.003v on one and 0.010 on the other Awesome!The included battery terminal bolts were too too short so be prepared for a run to the hardware store for some longer, metric bolts.The display on the battery is pretty great. Just be careful when “turning off the output” as that will power down the display. You need to press and hold the power button and the display to get it to come back on but it does not work reliably and can be very frustrating to get working again.Bluetooth range is weak but works. You need to be within 10 feet or so to connect. The Bluetooth app is pretty bad. TEMGOT has one in the App Store but it does not work with this battery. You need to use the BMS app with the elephant logo. It’s a flakey app but it works.Overall - I’m happy with the purchase and would do it again.

I have not yet used this battery it seems to be well built and charged to 100 percent. Going to buy another for our RV. I will know more in days to come but seems to be well build. Ok got the 2nd battery charging up now.