Differences in the handling of battery technologies

Differences

ComparisonNiCdNiMHLi-Ion
Self-discharge per month20%25%3-5%
Classic memory effectYesNoNo
Lazy battery effectYesYesNo
Ability to function at frost temperaturesAt -18 °C, still 40% capacity = still functionalAt -15 °C, 0% capacity = no longer functionalAt -20 °C, still 50% capacity = functional
Storage at frost temperaturesto -20 °C without damageto -20 °C without damageto -20 °C without damage
Storage time without recharging, used batteryup to 6 monthsup to 6 monthsup to 24 months
Optimum storage temperature5-15 °C5-15 °C5-15 °C
Battery protection ECPNoNoYes
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