ALWAYS make use of your devices ON / OFF feature when not in use or remove the batteries if your device is not in use or being stored for long periods of time.
ALWAYS carry and store batteries in a non-conductive container and NEVER with metal / metallic objects such as loose change or keys.
DO NOT short batteries! (intentionally or accidently connecting the positive and negative end of the cell)
ALWAYS use the charger supplied with your product / device or a battery charger designed for the cells you are charger.
NEVER completely discharge batteries. (The cut off for most cells is 2.8 volts or 2.8 volts)
NEVER submerge batteries in wateror expose to extremes of temperature fluctuation.
Periodically inspect your batteries for damage to the wrap or insulator that could lead to a direct short.
ALWAYS dispose of end of life cells at your local WEEE Recycling Centre or collection point.