Uploaded March 2026 | Updated September 2026, 2 weeks ago
Link to the battery (V2): amzn.to/4rgI2c0
đ My recommended batteries: cleversolarpower.com/batteryreviews
đ My Best-Selling book on Amazon: cleversolarpower.com/off-grid-solar-power-simplified
đ Free Diagrams: cleversolarpower.com
In this video I test an Eco-Worthy 12V 100Ah LiFePOâ battery to see if itâs a solid mid-range option or not. I start with the basics: unboxing, a 0.2C capacity test, and a charge/discharge efficiency check. Right away the numbers didnât look great, and the battery also kept hitting overvoltage protection before it could reach a normal full charge voltage, which pointed to a balancing problem.
After the normal tests, I try to use the Bluetooth app to check individual cell voltages, but the battery wonât connect at all. At that point the only way forward is opening the case to measure whatâs going on inside. I find a large cell voltage spread near the top and a very low passive balancing current, which explains why the pack canât recover from imbalance in any reasonable amount of time.
To quantify the imbalance, I compare the state of charge of the highest and lowest cell group using capacity testers and show how many amp-hours theyâre apart, then I calculate how long the balancer would need to correct it. In the end I explain why I canât recommend this unit as-tested: not enough usable capacity out of the box, repeated charge cutoff from imbalance, and a battery management system that isnât doing enough to fix it.
Important note: after recording, Eco-Worthy told me the battery I received was their older version and that the newer version was not available from the EU warehouse at the time. They also confirmed this older version does not have Bluetooth, even though I requested the Bluetooth model and the listings can look identical to buyers. Because this version is still being shipped from warehouse stock, Iâm publishing the results as they are. If I receive the latest version, Iâll run the same tests and post the results as well.
Battery review terms: cleversolarpower.com/reviewterms
Link to the battery (V2): amzn.to/4rgI2c0
đ My recommended batteries: cleversolarpower.com/batteryreviews
đ My Best-Selling book on Amazon: cleversolarpower.com/off-grid-solar-power-simplified
đ Free Diagrams: cleversolarpower.com
In this video I test an Eco-Worthy 12V 100Ah LiFePOâ battery to see if itâs a solid mid-range option or not. I start with the basics: unboxing, a 0.2C capacity test, and a charge/discharge efficiency check. Right away the numbers didnât look great, and the battery also kept hitting overvoltage protection before it could reach a normal full charge voltage, which pointed to a balancing problem.
After the normal tests, I try to use the Bluetooth app to check individual cell voltages, but the battery wonât connect at all. At that point the only way forward is opening the case to measure whatâs going on inside. I find a large cell voltage spread near the top and a very low passive balancing current, which explains why the pack canât recover from imbalance in any reasonable amount of time.
To quantify the imbalance, I compare the state of charge of the highest and lowest cell group using capacity testers and show how many amp-hours theyâre apart, then I calculate how long the balancer would need to correct it. In the end I explain why I canât recommend this unit as-tested: not enough usable capacity out of the box, repeated charge cutoff from imbalance, and a battery management system that isnât doing enough to fix it.
Important note: after recording, Eco-Worthy told me the battery I received was their older version and that the newer version was not available from the EU warehouse at the time. They also confirmed this older version does not have Bluetooth, even though I requested the Bluetooth model and the listings can look identical to buyers. Because this version is still being shipped from warehouse stock, Iâm publishing the results as they are. If I receive the latest version, Iâll run the same tests and post the results as well.
Battery review terms: cleversolarpower.com/reviewterms
