The optional Lithium-Ion Totex Battery pack capacity degrades over time. The mechanisms for capacity loss do not require the battery to be charged or discharged; capacity loss can also occur during storage.
In general, capacity loss during storage can be minimized by removing the fully charged battery pack from the equipment and storing it at the lowest possible temperature for the shortest period of time. The storage environment must be low in humidity and free of corrosive gases.
If the battery pack is fully charged, removed from the equipment, and stored at 20°C (68°F) or less, then it should have maximum shelf life of six months. If the storage temperature exceed 20°C (68°F) over a six month period, the shelf life is reduced and we recommend that the battery pack be recharged every 30-60 days.
If storing the battery for less than 30 days, the ideal temperature is between
-10°C (-14°F) and 35°C (95°F)
If storing the battery pack for greater than 30 days, but less than one year, the ideal temperature is -5°C (23°F) to 30°C (86°F)
Avoid storing the battery pack for extended period of time at temperatures greater than 45°C (113°F). If the battery is stored at temperatures exceeding 45°C (113°F) for six months, capacity loss is as great as 10%.