TC57 Quick Start Guide
11
Charge batteries in temperatures from 5°C to 40°C (41°F to 104°F). The device or cradle always performs
battery charging in a safe and intelligent manner. At higher temperatures (e.g. approximately +37°C (+98°F))
the device or cradle may for small periods of time alternately enable and disable battery charging to keep the
battery at acceptable temperatures. The device and cradle indicates when charging is disabled due to
abnormal temperatures via its LED.
1-Slot USB Charging Cradle
Solid Red Charging complete but the battery is at end of useful
life.
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).
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).
Table 2 Charging/Notification LED Charging Indicators (continued)
State LED Indication