Compact 12V 310Ah Bluetooth Lithium Battery, Small Size 12V 310Ah LiFePO4 Battery Supports Real-time SOC Monitoring, Built-in 250A BMS, Great for RV, Camper, Off-Grid, Solar System, Marine

The was well packaged in heavy duty cardboard with good packing material that protected the battery very nicely. Included with the battery was a well written user manual with clear guidance, along with various bolts and washers to support various connections to the battery. The battery arrived right on schedule and was charged to around 75%, which is exactly as it should be. The form factor of this battery is great. It is only slightly larger then a single size 31 AGM battery. I replaced 2 size 31 AGM batteries with this single light-weight battery. I am using this battery in a Lund 1675 Adventurer with a Minn Kota Ulterra 80# trolling motor. The battery fit in the battery compartment that housed one of the AGM batteries I replaced. The only concern with this was the latch for that compartment was around 1.5 inches this and would hit the top of the battery when closing. I have ordered a new latch that is only 0.5 inches thick and won't touch the battery when the door is closed. I was able to reuse the battery tray by trimming the end off one side. Width wise the battery fit perfectly in the battery tray, but the length was about 1/2 inch too long. I waited until I was able to test the battery on the water before writing my review. The battery performed great. While I wasn't able to fish long enough to drain the battery, I did use it pretty extensively. It was a stiff wind when I went out and I trolled to test the battery. I ran the trolling motor at 80% to get 1.9 mph into a steady 15 mph wind with a long fetch. I trolled for around 3 hours and the battery was still going strong. This wasn't an exhaustive test of the capacity of the battery but it is very promising. I don't leave many reviews for products but I am impressed by this battery so far. I have removed probably 100 pounds of weight from my boat and now I have an extra storage compartment where the other battery was stored. I highly recommend this battery!

I've used this battery for my trolling motor and it's great. I've replace this unit with 2 x 12v lifepo4 battery that didn't have bluetooth. The thing I find nice about this battery is the built in ampHr for capacity, I was tired of looking at volts trying to understand how much more juice I have in it. This is a great battery, it's rare for batteries to also have the ampHr build it, save you money so you don't have to buy a shunt

Have been using the battery 310Ah as an emergency power station for almost 8 months now and I've had zero issues. Battery life lasts me a couple weeks with steady use with solar, and has proven to be an excellent value for the price. These are compact batteries and not all that heavy, so they're easy to carry/organize. The posts are an M8 style and come with short/long threaded studs to meet any need you may have which make them easy to setup! Would definitely purchase again.

Works good has been holding a charge been good for are solar back up battery

These batteries are beasts. I originally purchased 2-100ah batteries before I found these. They are the same physical size as the 100ah ones, but are 3x the capacity. BMS system protects against over/under voltage, over/under current and over/under temperature. That being said, I still installed BOJACK MRBF terminal Fuse Block 200 AMP fuses on the positive terminal. The BMS will prevent over current draws, but this protects an attack from the other two batteries (yes, I bought 3 of these) that are wired in parallel. The fuse will blow if there is any attempt to backfeed into it. My only gripe is I wish there was bluetooth connectivity to the BMS so I could monitor the individual cells. I did install a Renogy Shunt that will monitor the battery system as a whole, but would've preferred to see the individual battery performance. For the price, these things are amazing.

Great battery we camped all summer on it. We don’t have power at the lake we camp at, And we never came close to running out of power even with the electric only fridge. We were still able to make coffee in the morning with a keurig. The 400 watts of solar charges it back up quickly.

I liked this battery at first. It worked great for about 8 months than completely died. Customer service has been a real pain to deal with and weeks later the issue is still not resolved. They claim to respond to all customer service message or emails within .5 to 12 hours but that is not even remotely true. It takes multiple days in between communication if they even respond at all. I knew this was a budget battery, but even at this prices, it was too good to be true. I will spend the extra money on the next one. Don’t buy it. Update: They have responded and sent me a new battery after 2 months. The issue now is they told me to throw the old one in the trash which is absolutely illegal in my state. It will cost my $135 to recycle this battery and they will not pay for that. So, if you do decide to buy this battery, add $150 to the price when you have to recycle it in 6 months if you don't want to commit a crime and throw it in the trash.

The battery came on time and was packaged extremely well. So far it is working very well for my boat trolling motor. The app is helpful and very easy to use.