Bluetooth 12V 314Ah LiFePO4 Lithium Battery MINI, Max. 4190Wh Energy, EV A+ Cells, Built-in 100A BMS, 15000 Deep Cycles Battery

Not only did the battery perform great, but I had a few questions. Their service got back to me very quickly and gave me the answers I needed. Will definitely do business with them. Service after the sale was top notch.

Great battery! Have it on my travel trailer for about 3 months now and couldn’t be any happier! Went to California from Ohio and was great! Never ran out of power.

Bluetooth connection is not easy. At first they indicate the BMS meta app is not compatible so I was referred to their BT connection guide. It has 2 android QR codes, neither one worked for me, not a programmer so not sure what they are trying to do with the QR codes. Was instructed to open the codes with a computer and email the link to my phone, that didn't work either. Today they said the BMS meta app will work but when I open the app it is looking for a name under the "local" instructions (not even going to the remote connection) what name? I open the BT pairing on my phone and a random j955020 appears after several tries, typed that in and nothing. I'm wanting this to work but it is not looking good. Update: Never got the BT to function, had to return the battery, which the seller covered the freight on. Today I was issued a full refund, so they did well on the return and credit. It should not have come to that if the product worked as advertised.

I have two of these 314ah Mini Smart and: 1) 8/21 New Humsienk Smart App exists on the play store and detects batteries (unlike BMS Meta) 2) are voltage regulated to 12.8V output until they drop below that 3) customer service is responsive and told me they are working on the additional features I requested. 4) my units tested at 299ah and 301ah @13amp draw Clarifying the voltage regulation: Normally when you charge a lifepo4 battery you'll see the voltage rise to the 14.6v range and then float there to equalize cells. After fully charging, this battery will show 12.8V. When you go actually discharge, the voltage will stay at 12.8V until it can't maintain that and fall to 10v (eventually) before the BMS cuts off the discharge. Because of this voltage regulation, it may be unwise to parallel this battery with anything but another 314ah Mini Smart because the regulation would presumably not play nice with the natural voltage state of the other battery. The new Humsienk Smart app: Good to see I have something but it is only provides for State of Charge and Alarm/Alerts as of now. Here are my requests: 1) There is no total amp hour or even watt hour indicator, only a percentage and graphic. 2) The battery indicates Linked (which is good), but doesn't list the name of the other battery I have paralleled. 3) The two previously mentioned problems should also reflect capacities to linked parallel or series batteries. 4) There is no individual cell monitoring 5) Battery parameters and Firmware Upgrade do not appear to function. 6) I would like to be able to turn the regulated voltage completely OFF The BMS Meta app works for the 100ah Mini Smart-- The expert setting code on mine is 888888 btw. ;)

The HumsiENK 314 Ah, 12V LiFePO4 battery is truly an exceptional value. At its current price point, nothing else comes, close in capacity and features. The battery comes with excellent documentation and two sets of different length terminal bolts. It’s app, although very basic, loads easily and stays connected well. After receiving the battery, it was fully charged and used the power my 75 inch TV system for over 16 hours. This consume just over 3600W and neither the battery nor the inverter had shut down on low-voltage. Considering the 90% efficiency rating of the inverter, the battery easily met its capacity rating. The only complaint some people might have with this battery is it’s 100 amp BMS. Considering my use case, this is of no concern to me, as I will probably never draw 100 Amps. With that said, I can recommend this battery without hesitation.

I purchased four 314ah smart mini batteries. It took some time to get the BT app for android straightened away, but it finally did show up at the Playstore. The app works, it is very basic, if you want to tune parameters look elsewhere. I believe the BMS is a proprietary module, third party apps can see them but do not communicate. The BMS is rated for 100 amps, I can see this being a problem for some folks applications. I have powered a chest freezer for a month off of 1 battery and used spillover solar power to charge the remaining 3 to 100% SOC, no issues. The level shown on the Humsienk app tracks well with a Victron Smart Shunt. Bottom line, incredible performance given the price point. I will update if problems arise with the three that have not been used yet.

Item received defective, after 4 calls to Amazon, returning the package 10 days later still no refund. There is poor customer service. I have wasted so much time trying to figure this thing out. Save a hassle and stay away or experience the same I did.

It works wonderfully. Had one small problem because the output of the battery was turned off when I tried to use the powered trailer jack the first time I hooked up the trailer. As soon as I figured out that I had to turn on battery output, everything worked great. Just never had a battery where I had to use bluetooth to turn it on before.