48V (51.2V) 25Ah LiFePO4 Battery, BCI Group 24 Lithium Battery, Deep Cycle Battery with 50A BMS, 2560W Load Power, Up to 15000 Cycles & 10-Year Lifespan for Trailer RV, Marine, Camping, Solar System

Long lasting. Great value, excellent for trolling motors.

working great to run an off-grid well pump on cloudy days, only have to charge it once in a wile as the load to capacity has been great. Small and easy to move by hand was just what I needed.

51.7 v and ready to charge/use on arrival. Fast delivery and several follow-up calls from the company as well. This is a swap for another size 24 so perfect fit.

Small size for ease of portability.

Zero stars, if your battery is defective you will have to pay a huge return shipping. NOT WORTH IT. Pay extra and get it from a brick and mortar store you can return it to. Put on volt meter .14v for 12v 100ah battery used 2 chargers to try to charger it both would not work.

Good specs on arrival as measured with a multimeterEdit: seller amended their statement saying the batteries could be charged together if the batteries were fully charged at start.

This is a LiFePO4 12.8V battery that delivers on every promise!The battery arrives well-packaged as shown in the photos. Weight comes in at 2.365KG (5.2 lbs or 5lbs + 3oz). Including the plastic case and BMS, the energy density is therefore 119 WH/KG: well within the range of 90-160 WH/KG for LiFePO4 (vs. 35-40 for Lead-Acid, 25-30 for gel cells).As delivered, the battery showed just under 13.1V; about 50% charge, the recommended level for long-term storage. It accepted the remaining charge in under 2 hours via a LiFePO4 battery charger with max 10A capacity, initially pulling about 7.5A, gradually dropping and then to zero as it reached 14.6V.I tested the battery to determine the internal resistance with an automotive type battery tester and it measured 0.025 ohm (25 mOhm). An excellent result; as low as most car batteries that are capable of much more peak current. The internal BMS will likely limit current to 20A continuous as specified, but it was able to deliver 100CCA peak current for the short duration of the test.Finally, I connected the fully-charged battery to a constant-current battery load tester. I selected a discharge current of 2A and a preset stop voltage of 11.9V so that it would stop when the battery momentarily dropped below 12V. After 11 hours and 8 minutes, the tested completed with 22.3AH delivered for a total of 289.7WH: over 100% of rated capacity. 12V represents about 10% remaining charge, but discharging more than 80-90% begins to affect the battery's longevity so it's a reasonable stopping point that still meets specs.LiFePO4 battery restrictions are 1. Never charge below freezing (0C, 32F) and 2. never allow voltage above 14.6V. I'd recommend letting the battery float to a no-load voltage below 14.6V once fully-charged as well.Finally, it's worth mentioning that batteries that don't meet spec (and worse) are very common in the international marketplace but fortunately this battery delivers 100% of its promise!

Picked this up to replace a gel cell 12v 26ah battery. Needed a deep cycle and have had success before with LiFe batteries in my drones and RC buggies. They are high discharge rated so they can be used for things like trolling motors, electric scooters and anything with a high amp draw. I recommend using a balancing charger with these, it will definitely extend the life. I've also got a 24v scooter that needs new batteries and I'm gonna pick up 2 more of these to wire in series to replace it. Better than spending $300 on a battery that does the exact same thing. LiFe is more stable than LiPo and I'm pretty sure Lith-ion so the risk of venting a battery is less. I'd still take precautions if you plan on keeping it indoors but relatively safe to change still. LiPo I use fireproof bags to charge and never leave the house while they are still plugged in. Overall, a really good battery for a pretty good price and can be discharged to a lower voltage than most sealed cell or liquid cell batteries.