A study provides new guidance for designing sodium-ion batteries, which are emerging as a less expensive and more ...

For $349, the EcoFlow Delta 2 brings 1024Wh capacity, 1800W output and 15 outlets to a record low price.

But the most prevalent fake batteries, Pecht says, are homemade creations. Counterfeiters can do this in make-shift environments because building a lithium-ion cell is fairly straightforward. With an ...