SMH3
20
8.
FIRMWARE UPGRADE
The SMH3 supports firmware upgrade function. Please visit Sena
Bluetooth web site at
www.SenaBluetooth.com
to check the latest
software downloads.
8. FIRMWARE UPGRADE
BATTERY INFORMATION
The product has an internal, non-removable, rechargeable battery. Do
not attempt to remove the battery from the device as you may damage
the device. The battery can be charged and discharged hundreds of
times, but it will eventually wear out. Recharge the battery only with Sena
approved chargers designated for this device. Use of an unapproved
charger may present a risk of fire, explosion, leakage, or other hazard.
Always try to keep the battery between 15ºC and 25ºC (59ºF and 77ºF).
Extreme temperatures reduce the capacity and lifetime of the battery.
A device with a hot or cold battery may not work temporarily. Battery
performance is particularly limited in temperatures well below freezing.
Do not dispose of batteries in a fire as they may explode. Batteries may
also explode if damaged. Never use any charger that is damaged.
Operating times may differ depending on the devices used together,
features used, battery age and condition, temperatures to which battery
is exposed, and many other factors.