A quick calculation: To estimate a battery’s internal resistance, you can use a simple voltage-drop method when the ...

Discover how to make a homemade battery capable of charging your smartphone using simple materials like copper foil, aluminum ...

Trystar has launched its new ChargePak Portable Battery Testing System (BTS), expanding its robust lineup of power storage ...

Car batteries often appear to fail without warning because the early stages of deterioration do not produce symptoms tha ...

Welcome back to our Tech Tip series! Today, we’ll review one of the most essential tools in every toolbox, a multimeter.

Some of the places that offer free car battery tests include NAPA Auto Parts, AutoZone, Firestone Complete Auto Care, and Pep ...

Battery testers are among the most valuable tools in any automotive repair shop, whether it’s work at a dealership service department, an independent repair facility, or maintaining a fleet. They help ...

The InfiRay P2 Pro has earned a permanent place among my tools thanks to its versatility - and I keep finding new uses for it.

As fire departments prepare to better track lithium battery fires, an expert advises not to plug a device into “any charger that fits.” ...