The cable tester is a beautiful black circular PCB ... of things like the orientation with an STM32 powered by a coin cell battery. But it gets better: There are disconnect switches and exposed ...

The cable tester is a beautiful black circular PCB ... of things like the orientation with an STM32 powered by a coin cell battery. But it gets better: There are disconnect switches and exposed ...

Loosen the battery cable clamp bolts and gently give them a ... Squeeze the ball on the hydrometer and draw the solution into the tester. Carefully hold the tester level and write down the reading.

After plugging the V4500 Plus’s PD100W cable into a garage outlet ... and the jump-starter’s battery tester was the first feature we used to confirm the Champion 590-cold-cranking-amps ...

A faulty cable is often the reason why your smartphone battery might be charging slowly. Especially if it’s a charging cable you’ve owned for a long time. These accessories go through plenty ...