A Japanese–Chinese team developed a titanium molten salt redox-flow battery using abundant titanium ions and molten salt electrolytes to enable high-voltage, fast, and stable grid-scale energy storage ...

Lithium-ion cells gradually discharge even when they are not connected to anything. Some self-discharge is normal. However, excess self-discharge indicates potentially catastrophic problems within the ...

If you have a motley collection of 12V batteries in varying states of health, this simple circuit will allow you to easily check their capacity. It’s basically a high-current discharge load which is ...