The peak detecting charger detects this peak, indicating the end of the charge cycle. A high charge current can be used, ensuring a full charge in 40 to 90 minutes. The next thing we do with a nickel-cadmium battery is discharge it. This part is easy, we just use our total station, GPS receiver, data collector, radio, or other piece of portable electronic equipment. But what happens when the battery doesn't perform like it was supposed to.
Rechargeable batteries are famous for having problems.
They get overcharged, undercharged, take memory sets, develop shorted or open cells, the list goes on. We will address these problems and some solutions that are available. One enemy of nickel-cadmium batteries is heat. Storing batteries in an overly warm area greatly reduces their service life. Heat also reduces the batteries charge retention, or how long it will stay charged after it is removed from the charger.