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

I really like the weight and compact size of the battery. It charged up perfectly and was in good condition when received. The handles on the battery are also a nice touch, making it easier to handle. Came with two lengths f screws as well as washers and lock washers which is nice, as other batteries ive got in the past come with nothing. The bms functions well and does everything it says it does. I really really liked that they included a manual that stated all the specs of the bms, such as cutoff voltages, temp cutoff, etc. such a good price for this battery for such good quality. The one thing I was a little disappointed with was them shipping using fedex however and wish they could use ups or even usps. I knew my battery had arrived when i heard the loud *thud* of the fedex delivery driver dropping it on my porch. Tracking from fedex is also hit and miss. Really glad the battery was packaged so well with thick dense foam that protected it when the delivery driver literally dropped it from waist high onto the ground. Over all happy with my purchase and will order from them again. Really hope to see larger capacity 24v batteries from them in the future.

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

This battery is for my Hook Reveal 7ts fish finder on my kayak. . After using a different brand for similar battery (12V 7.5Ah) for a year and half, that battery would only last 3 hrs. Since it was 30 $ battery I told myself for 1.5 years that was ok and ordered another. The new battery was used twice and only lasted 1.25 hrs and then almost 2hrs. I fish 4-6 hrs, so I sent it back and began a search for similar battery that was same size as it has to fit in my kayak battery holder in the sealed hatch. I found this brand XYNZ and was happy to find the right size with more power 12.8 V 12Ah and consistent reviews and for only a few dollars more. It arrived a lot early then originally schedule (Yeah). Was packaged very well and came with a nice little manual. I followed the instructions and charged it up. Took it out to fish and it lasted around 4 hrs without any problems. So I didn’t charge it to see how long it would last and took it out on day 2 and it lasted another 4 hrs. So I took it out on day 3 and fished 5 hrs without any problems. At this time my friend was here and used his tool and it was 11.8V. So I put it on charge. My friend also helped me to set up the voltage to display on my fish finder so that I know when it gets to 12V and can charge it up when it reaches that amount. I will follow up if I have any problems and also will follow up in 1-2 years to let you know if it’s still going strong. My other battery should have lasted a lot longer than 1.5 years! This company sounds good and has a 3 yr replacement on it.

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!