ECO-WORTHY12V 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

Ran 4 12's in series and parallel for 24vt inverter, batteries hold voltage well, work awesome.

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 had 2 redodo 100ah batteries, my 2kwatt inverter was not having a smooth transition from battery to shore power. The inverter lagged by providing no ac voltage. I replaced the redodo battery with two ecoworthy 280ah batteries. The eco worthy provided a lot of amp-hours using minimum space. I felt I was getting a lot of power for the price. My inverter's transition is now smooth.

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!

Update: 11-4-24 Batteries monitor indicated a full battery bank at 13.45 volts after the batteries were at rest for a couple of hours. I will continue use the manufacturer's SOC chart to gauge performance and accuracy, but their SOC rates are much different than many battery industry standards for 12v LiFePO4.2 x 280 ah LiFePO4 Lithium Batteries for 12v off-grid. Quick delivery. Well packaged. Arrived safe. Both batteries were charged at 13.27 volts when they arrived. Would be better if terminal bolts were larger and longer.Went to different battery websites and compiled/compared many battery resources SOC rates for a 12 volt LiFePO4 Lithium Batteries. My batteries were not at full charge at 13.4 volts as indicated by the SOC chart that came with the batteries. My batteries were fully charge at 13.6 volt as indicated by my battery monitor after having the batteries at rest for several hours after charging.

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.

As full time rvers, we've got 4 from this company & had no issues with any of them. We will probably buy a couple more when we have extra money. Great product for the price! We boondock in our camper often and these have been an amazing upgrade to be able to stay off grid in areas most campers can not go because of temperatures outside with no power hookups. We no longer have that problem. Have bought 2 at a time twice and will be buying 2 more soon to have an even larger battery bank.