ECO-WORTHY 12V 100AH LiFePO4 Lithium Battery with Bluetooth, Max.1280Wh Energy, Low Temperature Protection, Group 24, Built-in 100A BMS, Perfect for Trolling Motor, RV, Boat, Solar Off-Grid

Great little battery. I now have two of them.. a 50 Amp and now this 100 Amp battery. They’re lightweight and hold a charge for a long time.

Great battery so far. Arrived quickly and put on a LiFePO4 specific charger to slow charge it up to 100ah. Built in Bluetooth works great and is very nice to see current status. Very well priced and works great so far!

This battery is performing flawlessly. I use it to power an electric trolling motor on my small boat. I've used the motor for the better part of a day to explore local lakes. With the Bluetooth capability I can quickly check to see how much charge is left which is a nice feature when you're a long, long way from the boat launch. With almost constant use one day, the battery still had 83% charge remaining. Truly amazing, especially when compared to the lead acid batteries I utilized in the past.

This battery sounded like it would check all the boxes. Cheap, WiFi and Bluetooth, and the ability to put it in storage mode.The reality.1. Incomplete and inaccurate documentation. Manual says will stay connected with the app, but if it stops charging or discharging, it shuts off and requires a manual button press2. Cells don’t appear to be matched right. You can’t charge it fully or at the recommended 14.6v, as one or more cells go over voltage. When this happens, the 3 minute timer starts, and the included bw02 shuts down.4. Per ecoworthy, the bms cannot be updated, so don’t expect a firmware release to fix #1 or anything else.5. If you aren’t charging or discharging per the listing which contracts the manual, and you try to update the bw02 firmware, chances are it’ll shut it off mid update and brick it. There are instructions to fix it, but requires a windows machine to do so. The window to do this is just a few minutes. Don’t try to update the firmware of the bw02 unless you are charging or discharging. It’ll brick the dongle.5. Functions in the app itself don’t work, like the “buzzer switch”6. No documentation for the WiFi up setup or how to communicate with the battery via WiFi outside of the phone app7. Software on the bw02 advertises incorrectly with the MAC address instead of the manufacturer id like it should, causing BLE issues with any software but their own.8. The bw02 shuts down based on the columb counter, not actual capacity. As it drifts this means it’ll shut down around 5%, give or take at 12v. If you push the button to turn it back on it’ll keep going until the battery dies. If you start charging it again, the bw02 won’t turn back on until the voltage hits about 12v, which is about 5-8%9. No documentation about the bms, so no third party apps. Looks to be a different bms than their other 12v 100ah batteries.10. While the battery communicates via Modbus rs485, the bw02 simply adds on another header when it sends. Since there’s no documentation for the WiFi option, and no bms data, even if WiFi did work there’s no documentation on commands, registers, or coils you can get data from.Overall, if you want this for the capability, it isn’t there. they’ve acknowledged the bw02 and port issues, provide no solution to fix it despite multiple emails, can’t provide any details on the WiFi function, and only state they will look into addressing it on the next version.If you want just a dumb battery, and can deal with never getting full capacity out of it, then you’ll be fine, but then again the non iot variant is cheaper with well documented features.Update: the company did reach out and made things right. It sounds like the next revision to the model will make things right.

The batteries are excellent, exactly as described and the seller provided ‘above and beyond’ support. Extremely happy with this purchase. Highly recommend!!!Update - we purchased four of these at the same time and connected them in parallel. After using these on their first 6-day camping trip and powering lights, appliances, water pump, etc., in our rv, they were excellent and exceeded our expectations. They seamlessly ran everything without any diminished performance. They were easy to charge with the Eco Worthy charger which is connected to the batteries and our generator. They were fully charged each day in less than two hours of running the generator. Highly recommend!

We used these batteries for 2 months before they stopped holding their charge and became defective.After contacting customer service to have them replaced under the 3 year warranty, it took almost 6 weeks for them to replace the batteries, and this was after we sent them results of extensive testing and their team telling us that our results were ‘highly unlikely’ to be true because 8 batteries becoming defective wasn’t likely to happen. They finally conducted remote testing on the batteries and determined that we did, in fact, have 8 defective batteries and sent us new ones.We are going to use the 8 new ones they gave us, however, we will be searching for better batteries that hopefully have better customer service.

I use this battery to power a Minn Kota 45lb thrust trolling motor and it performs very well. It will push a loaded canoe faster than we can paddle for many hours. Back at camp I recharge it with a 30 watt solar panel/charger and always have enough juice for more boating. I highly recommend this product and have had good experience with other Eco-worthy items as well, especially for their price point.Ben in Western Washington

This is a great battery. I also like the app that comes with it to let you know how much power you still have left. I’ve used this battery about six times already for trolling for a long day of fishing. Also use it the second day and still had plenty of life left in it.