Beam SD7 series User Manual page 36

Charging the Iridium Extreme Handset
The DriveDOCK Extreme provides charging power to the Extreme handset
via its accessory connector.
The Extreme Handset battery is a lithium-ion cell which has a safety
temperature range whilst charging. This range is from 0°C - 45°C (32°F - 104°F).
Due to the increased heating effects on the Extreme handset whilst it is
docked and being charged, it is ideal for the ambient temperature to be
approximately 10°C below the 45°C upper limit for the handset to charge the
battery whilst docked. If the battery temperature exceeds this limit, then the
Extreme may cease charging until the temperature is reduced.
NOTE:
Please allow for tolerance variation of the cutoff temperature in the
Iridium battery. Ensure the Dock solution is the best choice (versus a
fixed transceiver) for the installation, so that a compatible charging
environment is available.
36