48V 314Ah (4 Pack 12V 314Ah) LiFePO4 Lithium Battery Max. 4019Wh Energy, 15000+ Deep Cycles,200A BMS with Bluetooth, Lithium Iron Phosphate Rechargeable Battery Great for RV, Marine and Off Grid

I have 4 of these now and intend on getting more as they go on sale for about $120 each being charged by my 12,000 watt solar panels and Mr Power MPP charger. Set up now in parallel outputting 12-14 volts to a 2000 watt modified sine inverter to power my 2 dead freezers. I have a timer on the 110 volt circuit to power freezers for 12 hours during the day and shut off saving battery storage for 12 hours at night. Freezers can be off for 2 days before showing any signs of defrosting. As I get more batteries I intend to output 24 volts using series/parallel battery connection and powering my 3000 watt pure sign inverter that I used to use 6 golf cart batteries to power. Their life was about 4 years and also were in my golf cart. They used to be $120 each but went to $150 recently so no brainer to go to a 10 yr Lithium battery that’s has more reserve power. The only issue is about the battery management system built into the battery to protect it. It does work as designed but what that means is that when the voltage goes down to 10 volts or so the BMS shuts the battery/batteries down and even if the load is removed they will not charge back up until you wake them up. You do this by applying for a few seconds a 12V DC input from a source like a Jump starter box. So this requires monitoring your system. I put a battery powered no AC alarm I got from Amazon on the inverter output to alert me when this happens. This occurs in cloudy weather. Yes there is a beep from the inverter but not loud enough to here in the house from the garage.

This battery was recommended by my social group as a replacement battery for my solar system. They were spot on. Battery life and functionality were increased, easy to install, and the price was much less than the other well known competitors. Size was not an issue it fit my compartment perfectly. I highly recommend. These do go on sale as well so watch the prices.

Very affordable good value battery. Installed our camper with new converter. It has a lot of capacity for the money. Only had it in for 2 days will do a follow up during camping season. Overall I like this battery and would recommend. Also bought 2 rack batteries from humsienk and the app works very well for checking battery SOC.

I purchased 2 HumsiENK 12V 300Ah (314Ah) batteries. When I received them on of the batteries had a bad BMS, (faulty temperature sensor) and showed the battery at -40 F. I contacted the manufacturer for warranty and after a simple test and confirmation they sent me a replacement battery promptly. So far the new batteries appear to be working as advertised. These batteries replaced 4 existing 100Ah batteries thus only took half the space and increased overall Ah by 200. The only initial negative I have is that the bluetooth signal is very weak and you have to be within 3 or 4 feet of the batteries for it to work. Also the phone app will only let you view battery at a time.

Exactly as described. Only have had them a few weeks and have not installed in my RV but I have been playing around with a couple of different 400w solar panels and they are charging well

Product was quickly delivered and works great. 4 days of camping and battery was still at 15%

Light weight, need a lithium charger when you purchase the battery!

A very good product in terms of quality and price, made with high-quality materials. I will buy it again.