12V 45Ah LiFePO4 Lithium Battery Iron Phosphate with Built-in 50A BMS, Battery 5000+ Life Cycles ，Deep Cycle Rechargeable Battery,Perfect for RV, Marine, Kids Scooters, Power Wheels,Trolling Motor

I have purchased 2 each - 300 AH batteries that worked great for 1 year. On a camping trip my second battery alarm started going off for low voltage while running my inverter. I knew it was the battery fault because switching to my backup battery had everything working fine. Getting home I contacted Digi Marker (Jessica) and she walked me through the required testing and information parameters. I get it, those are needed because some people may not have the proper setup and or damaged the battery due their own fault. Conclusive test results had Digi Marker stand behind their product and FedEx shipped me a replacement batter immediately.So many other brands claim warranty service and do not deliver. Digi Marker has USA support and delivers on their warranty with very responsive customer service.I am sold on their product because of the 20 years in business and development, several certifications and most of all their customer service and support while validating product warranties.

Battery arrived packaged well and about half charged. I fully discharged and charged back up. A full discharge test produced nearly 104 Ah, so above the 100 Ah advertised! My only disappointment was that this battery didn't have low temp charge protection but I knew that going in. All in all, a good product and value!

Here's a unpacking video. It's new to me, so am update will follow in time. I gave 5 stars because everything good so far.

Recently built a greenhouse for my wife and wanted to use battery and solar power to operate it as much as possible. So, a quality LiFePO4 Lithium Iron Phosphate Battery seemed a wise choice, just because of the number of charge cycles they can be run through. We are running a set of small fans for cooling and a couple of LED overhead lights for evening work.We originally had an 8ah battery that just missed the mark and would not quite make it through the day. The solar panel kept the fans running but when the evening came and the panel was not producing power we found that the battery's level of charge was comprimised and would not run the lights very long. So, we upped the battery to this 15ah battery and it has, so far, easily kept up with demands.It is about 4"x4"x6" in size with two spade connectors at one end of the battery. It arrived in a brown generic box that was very well packaged. It also included an interesting manual with loads of information. Upon arrival it was a little over half charged. (This is normal for batteries before being placed into service.) Before we installed it we full charged and ran it down and recharged it to try and set its values.In general we are pleased with the performance of this particular battery. Not to badmouth the original battery. It performed as well as it could under our excessive demands. This one is just the ticket.As many of you may be aware, these types of batteries do not like the heat. Our greenhouse can get quite hot at times and, so far, it has not effected this battery in the least.

I used this product with a small (36lb Thrust) trolling motor. The battery failed at the start of the 4th use and has not worked since. I have attempted multiple times to resolve this with Digi Marker through Amazon. They (Digi-Marker) refuse to respond to multiple messages and as of this writing have refused to replace this product. If you want to throw away $300 go ahead and get it; but I suggest you look anywhere but here.

great value

I got this battery to use to power a trolling motor on a small boat I keep on my dock. It's probably the smallest AH battery I can use for something like this. I charged the battery up with a small charger I got to make sure it was fully charged before starting, that took about 2-3 hours.I set up my trolling motor on the boat with the motor in some water and ran the motor on the lowest setting and measured the current on the low setting as 6 amps. To test out the battery I let it run continuously for over 2 hours and it was still running when cut it off. Battery voltage did not fall off significantly and the battery did not get warm from the current draw. It should have had a bit more juice left, but I did not want to push it. This experiment proved to me that I can use this little battery to run the motor for at least two hours on low which will be plenty for just putting around the creek. I plan to use it along with a PWM control in a small box as a lightweight power source for the boat and motor. It should do fine for that from what I have seen so far.

Unpacked this battery and it is very light weight. The shipping voltage was over 13v on my meter, but I forgot to write down the exact voltage.I charged the pack up to 14.6v and then discharged the pack to 11.6v. I was able to get 15.1 Ah out of the battery.The build quality of the pack is good. The cells are well assembled with good welds and all solder points are clean. There is at least one extra layers of nickel sheeting on the cell welds which may indicate a reuse of harvested cells. The cells are unmarked as to their manufacturer and specification. Visually, the BMS is very small for this size of pack and I could not find specifications online based on the circuit board markings. The seller has responded in the Q&A that the 15 Ah back comes with a 10A BMS (screen shot of the Q&A included in the photos for this review).The biggest issue I have with this pack is the potentially very limiting 10A BMS. I would expect at least a 20A BMS for this capacity of pack, but there are still plenty of applications that will be met with the 10A BMS.