ECO-WORTHY 12V 100AH LiFePO4 Battery with SOC Display Flame-Retardant

I switched the four batteries in my pontoon boat to lithium and I am very happy that I did. These batteries can "talk" to an app on my phone letting me know their status while standing in my dining room looking out the window at my boat. I have been using this for a year already and all four batteries are working perfect! I have been through one winter with the lithium batteries and had no problems. The NOCO four battery charger and the batteries work together to only charge the batteries when the temperature is in the correct range. I definitely recommend this product and would buy it again!

It took a little longer to get the order but the battery is very good quality. I did the full charge with no load and it charged perfectly with a Roover 40A MPPT charge controller. I did all of the recommended checks and am ready to put it into service

Works without issue. Seems to be well built

Do not trust the BT app or display - use an external voltmeter. I would say the only time the display is accurate - less than 50% off is for a one time higher load application like a electric boat motor, and then you immediately re-charge same day and use it again next week. If you store battery or use it for a radio or computer charging - as in less than 10W or 1 amp load the display will be off, not just a little but 50%+. This display - using cheap coulomb counting method is the bug, not just here but most smart batteries. This BT and display will not detect a load smaller than 1 amp like self discharge from its own internal BMS. The display will show 90% with only 10% SOC. You need to measure resting voltage to determine SOC. The battery seems to work fine - just the display (stupid smart part) tricking you to think you have a near full charge! It is important to sleep this battery for storage - and learn the trick to wake it. You will need to measure resting voltage or use a high end ext shunt/coulomb meter (Whr or Ahr meter). Resting voltage to predict SOC in LFP is still maybe +/- 10% due to extreme flat soc curve that only changes by millivolts during charge/discharge. Typical number for LFP with BMS and BT 1% SOC loss per day of storage - 2 to 3 months - like leadacid! Near zero SOC loss in sleep mode - learn how to wake before trying this! Just maintain by charging monthly for simple operations.

using this to power HAM radios and clearance lights. works very well. Bluetooth status monitor is very handy.

This does exactly what I wanted: 12 VDC LiFePo4 battery with a Bluetooth BMS. So far, it’s working well and I like that it has some push buttons on top to check status without a phone.

I would’ve given a better rating if they wouldn’t have argued with me. But the battery worked great. And it charged fine for two days. Then it just stopped working at 40% life. All the company wants to do is argue with you on what you did wrong. And I just wanted a replacement. Didn’t ask for my money back. I offered to send their battery back in return for just a new replacement. And they just wanna argue about what you could’ve done. The battery will not power on at all. Doesn’t connect to app any longer and just completely died at 40% life.

I've only had it for a month or so but it's a great battery. I'm very happy that I bought it