ECO-WORTHY 12V 200AH (2Pack 100AH) Mini Size LiFePO4 Lithium Iron Phosphate Battery with BMS, Up to 15000 Cycles, For RV, Trailer, Trolling Motor, Camping, Solar Off-Grid System, Group 24 Batteries

I bought the pair a couple of weeks ago and tested them over the past few days. One battery charged fine and discharged using a 20amp load. Recharged using a smart LiFePo4 charger at 15amps setting and it came up to 100% of capacity rating of 100amps. The second battery was charged and likewise discharged into a 20amp load. I recharged this one as well, but it only came up to 98% of capacity, not the full rated power of 100amps, just 98amps. I ran the test again, same problem but this time only came up to 95%. I contacted the seller via Amazon who replied within 24 hours. They verified my testing and honored a request for a replacement battery. The battery arrived and tests great. Seller is very easy to work with and really wants to ensure customers are pleased with their purchase. I could not have been more pleased with the result. Thanks!

Bought these to replace my single RV battery that came with my camper. These are way lighter and store more energy and work great for keeping my essentials going while im off grid. My 2 solar panels have no problem keeping these charges up for night time to keep the 12 volt refrigerator going all night. No, they wont run my RVs AC unit but I have a gas powered generator when I need to do that, bit they are the most bang for the buck. Similar batteries are more expensive so I am pretty happy with these so far.

Installed in a 2004 club car ds as a conversion from lead acid. Worked great and easy to install. Been in the cart for awhile now. Had one little hick up where one battery had an extra draw for the 12v lighting. Seller was very helpful in figuring outwhat happened and was ready to do a warranty replacement. Was able to get the battery to recover with the sellers help. I just installed an eco-worthy battery balancer to prevent that from happening again. I would highly suggest getting a battery balancer when purchasing multiple batteries. Now I can drive about 3 times the distance I could on lead acid. I get about 4 miles per 10% of battery power.

Installed in a Ryobi ZT480 mower to replace poor choice of OEM, AGM batteries that were a failure by Ryobi, customers not compensated. These were cheaper than the OEM replacement even with the needed charge controller. Battery powers mower better and much longer than Ryobi OEM. Recommend for this type of use. I am expecting longer performance in years as well. Mower is also 200 pounds lighter with these batteries.

I have been tinkering with alternative energy sources for decades, mostly solar photovoltaic. I have a working off-grid system powering lights, air conditioners (and heaters), and power tools including a large air compressor. I had eight 200Ah batteries connected, as a 48V system set up for 400Ah of storage, and four large car batteries paralleled to help get through the night when under heavy AC load. It just wasn't enough. I purchased a four pack of these LiFePO4 batteries. I have wanted them since they came out, but they were prohibitively expensive. When Amazon listed them for under $1000 for four 100AH batteries, I went ahead and bought them. The price is less than a quarter of what they normally sell for! I replaced my four car batteries with these, leaving the 200Ah nanocarbon batteries in place. Now I can run a space heater all day and all night. Finally I have enough storage to make my 5kW MPP Solar inverter happy, and can actually use the 6.6kW of panels attached effectively and efficiently. What about longevity? Who knows? I hope to not find out for at least another decade!

I don’t usually write reviews on products but I feel it’s necessary to do so, regarding this company and their customer service! I purchased this 4 battery set, installation was fairly easy but once the batteries were installed I discovered one battery had a defective BMS unit. I contacted this company’s customer service and without hesitation they offered to replace the defective battery. I advise anyone searching for Lithium batteries, to buy thru their company. I’m excited to receive the new battery and spend countless days on the golf course, reduced charging time, with less charging! Thank you

I bought two batteries. One works great and one does not work at all! They keep saying do not return bad battery and that they will send a replacement. It has been OVER two weeks now and still no replacement! I am not impressed at all! UPDATE: I have now received a replacement battery and it's working great! Thank you Ecoworthy!

Got these 3 months ago kinda disappointed. These do have a very fast voltage drop. I have 1000 watt inverter and a phone charging over night and then are dead in morning with alarm going off on inverter. Update. Awesome company to deal with. They have gone above and beyond to rectify the problem. They are one of the last company's on Amazon that stand behind there products. I have been off grid 7 years and used many of there products from charge controllers to solar panals. I will continue to use them because of the excellent customer service.