12V 100Ah LiFePO4 Lithium Battery Bluetooth - BCI Group 24 Deep Cycle Battery, Built-in 100A BMS & Low-Temp Protection, 15000+ Cycles, for RV/Marine/Trolling Motor/Off-Grid/Home Backup

Battery is working as hoped for/expected!We bought this battery along with a 1000 watt pure sine wave inverter to use as a power pack for our cargo trailer toy hauler/camper conversion...mainly to use with our 48 quart Wolfbox 12/120 volt car refrigerator and it ran the refrigerator for approx. 24 hours non-stop via the 12 volt plug connection.Note 1...I used a power plug-in 120 volt meter to check the wattage pull on the battery with the refrigerator on it's "Max" setting and it was pulling between 48-54 watts.Note 2...the battery and inverter ran the lights (two 40/42" led light bars) with no drop/hesitation.Note 3...we tried to run our microwave (1400-1450 watts) and it started up but the power dropped down and you could tell...this was probably because the inverter was set to normal and not the heavy load setting??? I plan to try it on the heavy load setting later on.I hope that it will continue to give us this type performance for our camper/toy hauler in the future and for an acceptable amount of time.Hope the information above was helpful!

I changed my review. This isn't really about the battery, but it's about their customer service. They did an outstanding job of communicating and arranging for a return. I turned around and bought two batteries from them that I know will fit, largely because I know they will stand behind their product.The battery might be good. However - WARNING!! It does not fit a standard double battery box. In fact, I couldn’t locate any battery box that it would fit. It is too wide for a standard battery.

Installed in my 21” Nitro with 300hp Mercury. Took it out for the first time since installing this dual purpose lithium and so far it’s performed flawlessly. 1200 cca starts this 300hp beast with ease and run all my electronics for 2 days without charging (except when engine is running) and again performed very well. Bluetooth is easy to use you just have to be within 15-20’ from the battery for it work which is no issue while on the boat or around it. Don’t waist $100’s of extra dollars on the well known brands, this lithium battery will do everything you need for a cranking and electronics. What you waiting on, get one.

Only getting 4 stars, should be five. Getting 4 stars because the Bluetooth app (BMS meta) that works with two Humsienk batteries I purchased does not work with the third Humsienk battery I purchased. You have to use a different Bluetooth app (Humsienk Smart app) with the third battery despite what the Bluetooth manual included with the third battery showed AND the Humsienk app does not work with the first two batteries purchased. All batteries purchased within 3 months of each other. So, two apps are required to run 3 batteries.The Humsienk app does not include many of the parameters that the BMS meta app does (like cell voltages and differentials, # cycles) and you have to query (search for) the battery more than once to find it every time you start the app."A" for value, "C" product continuity.

It’s a great product that came state of health at 99% state of charge was 98%. Everything’s good. It felt right into my system after I balanced the two batteries to install highly recommend

as advertised.

This battery was great initially. After 3 months It has an issue not accepting charge and will not allow discharge. Communication from seller was poor, then I discovered they are a 3rd party seller, whatever that is, and amazon feels it is not their problem to resolve unless seller does not respond in 2 days. Seller responds with 1 line answer to avoid amazon refunding. 5 year warranty is Not AS IT APPEARS! I am stuck buying another battery on my vacation and lugging this unusable item with me on my road trip.Buyer beware.

Very light weight.