User's Manual

MAINTENANCE
79
4
Even if the storage temperature range is wider, In order to
achieve the longest battery life, store the terminal and the
spare batteries between 20 to 30 ºC (68 to 86 ºF).
JOYA™ X2 should be charged at an ambient temperature
between 0 - 35º C to achieve the maximum charging rate.
Never charge the main device or spare batteries in a closed
space where excessive heat can build up.
NOTE
4.2 REPLACING THE BATTERY PACK
To correctly replace the battery pack, proceed as follows.
1. Unscrew the two screws placed on the back bottom. The battery pack
cover is now released.