Nicad, Nimh Battery Care by Modelflight
When you first get your battery Run your rechargeable battery through at least 3 full charge/discharge cycles before putting it into ordinary service. This will help obtain maximum capacity of the battery.
Storing your battery Store your battery in a cool dry place. Do not leave your battery exposed to direct sunlight or temperatures below 30 degrees F and above 100 degrees F. Always fully charge lead acid batteries before storing.
Charging your battery Rechargeable batteries will perform better when trickle charged. Rapid or Fast charging can be used with NiCd, NiMH and Li-IOn batteries, but you must be sure that your charger can handle the cell chemistry involved.
Important: Most of the problems with rechargeable batteries can be traced to misuse.