User Manual
18
Chapter 12 Precaution for Battery Operation
12.1 This instrument is designed with the built-in sealed maintenance-free rechargeable lithium
battery,and has automatic charge and discharge monitoring system. The instrument recharges
the battery automatically when connect to AC power supply. The LCD screen will show the
current power state at the top right corner when the instrument turns on(see 12.4). It needs
about 4 hours for battery charge after discharge absolutely.
12.2 The device can continuously print 90 minutes and work 4 hours without printing after the
battery fully charged. When it working, the LCD screen displays the signal of the battery
status in 5 degree. When the power of battery is too low to operate, the instrument will turn
off automatically to avoid damage to the battery.
12.3 The battery should be recharged in time after exhausted using. For long storage, the
battery is to be recharged every 3 months. The battery life can be extended by doing so.
12.4 Seven status of the battery power displayed on LCD as following:
Note: When charging the battery icon shift from f to c.
12.5 When the battery can not be recharged or works no more than 10 minutes after fully
charged, please change the battery.
Attention!!!
Do not directly connect both "+" and "-" polars of battery with wire, otherwise it might cause
fire hazard.
Possible explosion hazard if it kept nearby the ablaze area.
You should not open or disassemble the battery.
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