Why has my battery's operating time decreased?
The occurrence of the following symptoms may indicate that your rechargeable batteries need to be replaced.
- The battery has been heavily used in recent years, and its operating time has begun to decrease after charging. As a general rule, replace your rechargeable batteries when the operating time is cut in half.
- If charging one battery becomes increasingly difficult, for example, as the charging time increases. For example, if it takes twice as long to charge a battery as other batteries of the same type, it is recommended that the rechargeable battery be replaced.
If a dead battery needs to be replaced in an appliance, it's best to replace all batteries in the used appliance to avoid overcharging the other batteries.
The main cause of the defects listed below, however, could be an intermittent contact between the battery and the terminal.
- Battery charging is never completed or takes a long time (guideline: 2 to 3 times longer than normal charging time).
- When the operating time is noticeably short despite only a few uses of the battery.
Cleaning the plus and minus terminals of the batteries, as well as the terminals of the charger, is recommended in the aforementioned cases.
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