12V 50Ah LiFePO4 Lithium Battery 12V LiFePO4 Batteries 640W Power 4000+ Deep Cycle LiFePO4 Iron Phosphate Lithium Battery Built-in 50A BMS Trolling Motor Batteries for RV,Marine,Solar,Camper

I've had it for a short time and and impressed so far. I have not used it for on my trolling motor, which is one of the main reasons thatt I bought it for, but have done a multitude of tests. Came with about 70% charged in a well packaged sturdy box. Discharged to about 10% and then re-charged to 100%. It recharged to about 5AH over the rated battery amount. I hooked up a 500w power inverter to it and ran multiple 115vac items and it performed well. I ended up running the battery down to about 50% and let it sit for a few days and the voltage remained steady. Recharged to 100% again and it has been sitting for about 3 weeks without any voltage drop. I also hooked up a power inverter and ran a 12vdc portable freezer/refrigerator with a compressor that was set at 5F. The amp draw varied during the frig running due to the compressor kicking on and off. Checked the temperature of the frig/freezer many times and it ran flawlessly. After 23.5 hours the battery was at 17% and I turned everything off at that point. Recharged overnight and it recharged fully to 100% and 50AH. I cannot rate the longevity as it is pretty new. I am a looking forward to using it with my 30lb thrust trolling motor. I highly recommend the DJLBERMPW 12V 50Ah Lithium Battery. UPDATE TO REVIEW 9/14/24 I have the battery installed in an enclosed ammo box that also has a PWM installed in the same box and the PWM puts off quite a bit of heat. The faster that I run my trolling motor the more heat that the PWM puts out. I ran the trolling at various speeds of 30% to 100% power without any problems and took the battery down to between 50% and 30% on those days without any problems. Then one day we wanted to get back to our dock in a hurry. At that point the battery was at around 75% and we ran the trolling motor wide open to get back. After running the motor at 100% speed for about 45 minutes everything went dead. My conclusion is that the battery BMS had shut down the battery due to the excessive heat in the battery box. I arrived at that conclusion due to the fact the once we got back to the dock the battery worked fine after it was cooled down some. I verified that conclusion the following day by running at 100% trolling motor speed for over 1.5 hours with the lid to the ammo box propped open with a stick without any problems. 1.) The BMS worked as it is supposed to and protected the battery. 2.) The shut down was not due to the battery being faulty. It was due to the battery working as it should. I have already ordered a 12v fan to install in the box and do not anticipate any other problems once the fan is installed. I recommend this battery 100%.

I bought this battery to expand the house battery bank and because it was so inexpensive, I had to see how well it was built. At this price I cannot even touch raw cells at this price. So, I was very curious to see what corners were cut to bring down the cost. I tested the battery with a .2c discharge for 5 hours and to my delight it came in at 103.4 ah Not a big surprise as the cells are 102 ah cells. Short circuit protection, over current and overcharge protection all work as they should. The BMS is good quality and works as it should. The terminal connections are 2, 8 awg silicone wires and are adequate for a sustained 100-amp draw. The cells are brand new Gotion manufactured this year. The cells are matched and balance well at the top of the charge. The build quality is very good all laser welds on the busbars. The screw connections at the bms and balance leads all covered in silicone to prevent them from shorting or backing out. The battery case is well sealed in fact it was a nightmare to get it open which is a good thing. At this price point you can not build a battery for less. At roughly 60 dollars a cell the is the best built battery I have seen at this price point. I tear down a lot of batteries as it is a hobby of mine and this is one of the best built, I have seen for this price. The price of Lifepo4 batteries has really come down in comparison to usable amp hours they are now less expensive than lead acid batteries. The quality is really starting to come up on them as well. This battery is proof of this. Its well-built, safe with a quality bms and new quality cells. I am happy to say no corners were cut with this battery. I would recommend this battery to anyone in the market for a good lifepo4 battery.

Easy replacement of lead acid batteries, requires charger meant to charge Lithium batteries. Greatly reduces weight, cart runs like a deer.

I bought a 4 pack of DJLBERMPW LiFePO4 battery, back in February of this year. In April of this year. I now have one of four that has crapped out on me. I haven't heard back from the company about how to fix the problem. But it is not helpful. For this amount of money for these batteries, problems shouldn't happen this early. I would give them a 0 if it would register on the scale. update; Here it is July and I am still fighting to get a refund and cost of shipping back to the supplier. This is my opinion; this company has no value on customer satisfaction. Stay well away from this product and company. update; Here it is July, final have the answer to the refund and money spent of shipping. Tough titties on you luck. Amazon did reach out to the company on the issues. Since the battery went bad after the 30 days period. The company successfully defended their stance of past the grace period. I bought a replacement to handle the bad battery. Lost money on the replacement battery and the shipping of the bad battery. For the company informed me the battery was bad. Great, oh no it is past the 30 day period. Oh look, other batteries have extended warranties. But this company costs you $17 a month for a warranty. Final update; The company sent me a replacement battery, after I said I replaced the bad battery. So now I have a unit to sell. I couldn't get the $77 back for Shipping the bad battery back. Amazon was to help because the seller is a third party. They could ask, but the company said pffft!! It is now September. I lost another battery. 2 out of 4 in 9 months. Don't buy this battery or use the company, based on my experience.