Getting Started 1 - 7
• Auto Charging Cable Cup.
• Serial Cable Cup
The 4,620 mAh battery fully charges in less than six hours at room temperature.
Charge batteries in temperatures from 0 °C to 40 °C (32 °F to 104 °F). The TC75 or accessory always performs
battery charging in a safe and intelligent manner. At higher temperatures (e.g. approximately +37 °C (+98 °F)) the
TC75 or accessory may for small periods of time alternately enable and disable battery charging to keep the
battery at acceptable temperatures. The TC75 or accessory indicates when charging is disabled due to abnormal
temperatures via its LED.
1. To charge the main battery, connect the charging accessory to the appropriate power source.
2. Insert the TC75 into a cradle or attach to a cable. The TC75 turns on and begins charging. The
Charging/Notification LED blinks amber while charging, then turns solid green when fully charged.
Charging Indicators
Replacing the Battery
1. Remove any accessory attached to the device.
2. Press the Power button until the menu appears.
3. Touch Battery Swap.
4. Follow the on-screen instructions.
5. Wait for the LED to turn off.
Table 1-1 Charging/Notification LED Charging Indicators
State Indication
Off TC75 is not charging. TC75 is not inserted correctly in the cradle or connected to
a power source. Charger/cradle is not powered.
Slow Blinking Amber (1 blink
every 2 seconds)
TC75 is charging.
Solid Green Charging complete.
Fast Blinking Amber (2
blinks/second)
Charging error, e.g.:
• Temperature is too low or too high.
• Charging has gone on too long without completion (typically eight hours).
Slow Blinking Red (1 blink
every 2 seconds)
TC75 is charging but the battery is at end of useful life.
Solid Red Charging complete but the battery is at end of useful life.
Fast Blinking Red (2
blinks/second)
Charging error but the battery is at end of useful life., e.g.:
• Temperature is too low or too high.
• Charging has gone on too long without completion (typically eight hours).
CAUTION Do not add or remove SIM, SAM or microSD card during battery replacement.
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