7.5-ah-dry-battey

2 года назад

The video demonstrates how to revive a dead lead-acid battery. The creator shows how to add distilled water to the battery cells and then uses a trickle charger to bring the battery back to life. They also show how a regular charger will not work on a completely dead battery.

7 лет назад

This video tests four different 12-volt DC batteries to see which one can hold a charge the longest when subjected to the same current. The tester uses a lens light to draw current from each battery and records the time it takes for the voltage to drop below 12 volts. The results are then compared to determine the best performing battery.