The highest-rated Harbor Freight battery chargers come from Cen-Tech and Viking, with a 4-amp Viking charger topping the list ...

The Over-the-Top type of operational amplifier is ideal for use as a current sense for battery charger applications. The design described here can be used with chargers for rechargeable batteries ...

Want to extend your car battery's lifespan? Switch off accessories, avoid long stationary periods, and protect your battery ...

Gone are the days when using power tools meant needing access to an outlet and running extension cords all over the place. Cordless tools offer unprecedented freedom of movement, but their reliance on ...

When temperatures drop, EV owners face a physics problem: Reduced battery performance and increased charging times. Fuel economy is 8% lower at 20 degrees than it is at 75 degrees in EVs ‒ and range ...

Sick of your laptop battery running out in no time? It’s frustrating—especially when you can’t stay near a power outlet. I used to struggle with this too, but a few tweaks helped my laptop last longer ...