These solar power banks come in five colors, and all are currently on sale. The battery in this charger is a 20,000 mAh lithium-ion model, enough to charge an iPhone four to five times ...

So not only will the MH-CD42 charge your lithium-ion cells when given a nominal USB input voltage (4.5 – 5 VDC), it will also provide essential protections for the battery. That means looking ...

[Jason] shows us how we can use a PPS-capable USB-C charger for topping up our Li-Ion battery packs, in a project named DingoCharge. The wonderful write-up answers every question you have ...

The new home energy storage solution from Estonia’s Freen is based on sodium-ion battery chemistry and can be coupled with both rooftop PV and small wind turbines.