ECO-WORTHY 12V 280Ah 2 Pack LiFePO4 Lithium Battery with Bluetooth, Low Temp Protection, Built-in 200A BMS, 3584Wh Energy. Perfect for Off-Grid, RV, Solar System, Camper, Travel Trailer, Backup System

Simply amazing, wish I would have bought these batteries in the beginning instead of the 100 amphr batteries from Haya. Last a long long time, connect to your phone blue tooth so you can monitor battery capacity and charging status. 4 pack a great buy, will purchase more for future off grid solar projects.

I have bought 12 of these batteries so far. All are working just fine. Had some technical issues with the newest batteries that included blue tooth monitoring. It took about a week of correspondence with the company to resolve some minor issue with recharging and having the blue tooth saying the batteries were fully chargedSome technical person named Dante helped me through resolving the miss steps. The quality of his service and keep checking back to see things were getting resolved deserves a A++ gradeI will continue to buy and promote their products because of his efforts high five for helping me you are the best!

This is a great product for the money. I like the Bluetooth connection to the battery. The BMS is very important to me as these will be in the basement of my RV. I can not afford for them to over heat or develop any problems.I also changed out my converter, as my old one was for lead acid batteries.With these two batteries giving me 560 amp hours of power, I estimate that with the 4000 inverter, I should be able to run the 12 amp AC for 2 1/2 to 3 hours, especially with 1230 watts of PV (solar panels).This, with the ability to charge with this much PV and discharge up to almost 4000 watts, the BMS is very important.

Very nice and well built. I’ve had them attached to my solar system for about a year now and am very pleased with them.

They work flawlessly but with a bank of 4 in parallel they come up around 100 ah short of the specified capacity but still cheap per kwh and well worth it

These were shipped out quickly and in very heavy duty boxes with form fitted padding. I have now run these outside in my garage through two major power outages 3 days with a few lights and portable AC only took the batteries down to 42% They run daily as primary power for my servers, desks and lab. usually only losing about 10% over night and get plugged into 800W of panels and charge them back to 90% when they get close to 60% They have been proven to stand up to use, but more time is the real tale for batteries batteries.

Well, I'm going to keep this as short as possible. I bought the 2 piece 280ah batteries here on Amazon. It was a great price for this capacity battery for my RV. One battery arrived in perfect condition, and the other arrived with no labels at all. I called Eco-worth and expressed my concern with receiving a battery with no labels. They literally told me to "try them and see how they do." Seriously?!!! What if my RV burns down because of mismatched batteries? They offered to do an exchange, but I had to ship their battery back on my dime, and provide proof of shipment before they would ship me a replacement. Needless to say, I'm processing a return through Amazon to send both batteries back. I really wanted these to work for me, but I'm not ok with an unlabeled battery. If this is an indication of their quality control, I'm happy to pay more for a better product.

I am a real buyer of these batteries. I use them with solar panels, inverter and power a portion on my house with them. I had T-105 lead acid battery bank. Welcome to the Future !!! The customer service is excellent if you have questions. Not only do I recommend these batteries and this company, I just purchased 2 more of them for a total of 4...