How can the age and condition of a sealed rechargeable battery be determined?
Look for a stamp on top of the battery. The stamp should be in a date format of YYMMDDXX where:
- YY is the year.
- MM is the month.
- DD is the day.
- XX is the manufacturing plant.
This indicates the age of the battery.
To evaluate the condition of the battery:
- Charge the battery.
- Let the battery sit for a couple of hours.
- Measure the open circuit voltage to get an estimated indication of condition.
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