A battery charge controller is an essential part of a power system that charges a battery because it can keep the battery safe for a long term. A charge controller, in principle, is an electronic ...

I have reviewed quite a few portable battery power stations in recent years as these emergency power supplies grow in both capability and popularity. Given the increased frequency of power outages due ...

Portable car battery jump starters can be essential in case of a battery emergency. If your car refuses to start from a weak or dead battery, these compact devices can jump-start your car wherever you ...

Need a power bank for your electronics? These devices receive high scores for charging speed and portability. These portable battery packs—which you recharge from a wall outlet—can revive dying phones ...