They were the worst lithium batteries ranked by Project ... be a function of how they're used. VARTA Longlife AA alkaline ...

The battery built by his team endured 500 complete charge cycles—about as many as the batteries in most smartphones are ...

On Saturday, the sportscar maker separately announced that it will take a majority stake in V4Drive Battery GmbH, a venture that pools Varta’s business in lithium-ion cells used in the hybrid ...

Varta said another central component of the ... However, there is disagreement over whether it is a viable alternative to lithium-ion batteries. “For the German battery community, this project ...