generally speaking, there are several LED lights on the battery charger, when the light is red, it meas the battery is being charged, when the light turn to green or yellow, it means the battery is full charged
It's a good idea to avoid charging any battery with a charger that was not designed specifically for that kind of battery. A car (vehicle) charger is generally designed to recharge 12 volt lead acid...
In order to understand how a battery charger charges a battery, let's touch on some basics and then crush the question with an answer. A battery is basically a storage device that stores electrical...
what kind of batteries do you have?? if the mobile phone's battery, just put in your phone. If it's car battery, just connect the red cable to positive, black cable to negative plates.
If you are talking about battery chargers you buy to charge your vehicle's battery, you will hear a slight hum or a feel a slight vibration as it is charging. Some chargers have a meter which will...