Charging handset, Lithium-ion battery, Troubleshooting – Sharp AQUOS Crystal User Manual
Page 16: Charging cautions
Enter Operation Password
・If Operation Password is unset, follow onscreen prompts.
All SD Card files will be deleted.
Battery is built into handset.
This product requires a lithium-ion battery. Lithium-
ion batteries are recyclable. To recycle a used lithium-
ion battery, take it to any shop displaying the recycling
・To avoid fire or electric shock, do not short-circuit or
Notification Lamp flashes while charging
Charging is not in progress. Use specified Charger for
If charging still does not start, contact a SoftBank
Shop or SoftBank Customer Support,
Cannot charge handset abroad
SoftBank Mobile Corp. is not liable for problems
resulting from charging handset abroad.
Do not pull, bend, or twist cable; may damage the cable.
To help maintain performance and life of Internal Battery,
do not store in the following conditions.
・Full (immediately after charging is complete)
・Exhausted (too low to power on handset)
Battery level should be at approximately 40% for optimal
Bulges of Internal Battery
Depending on usage, bulges may appear near end of battery
life; this does not affect safety.