![Feelworld FPV821 User Manual Download Page 8](http://html1.mh-extra.com/html/feelworld/fpv821/fpv821_user-manual_3837592008.webp)
7
2
. Power Supply
There are two versions for power supply:
2.1 Supplied by city electricity with power adapter
When the monitor connects the electricity by DC power adapter,
light is red, means it is charging, after fully charged, the charging
indicators will be off.
You can choose the power adapter (optional) which matches to the
monitor to charge the monitor. If you need to use other power adapter,
please use the qualified power supply in DC9-18V,
≧
1.5A.
2.2 Build-in Battery Power Supply
This model is build-in Li-ion battery capacity: 7.4V-2200mA/h
(2Hours), after fully-charged, it can work for about 2 hours.
2.3 Li-ion Battery
●
The working temperature of Li-ion battery is -20~60
℃
, please
don’t use battery in the place with temperature too low or too high.
The power of battery will be reduced if it is working in low
temperature environment.
Please don’t use the battery in high
temperature environment,
may cause battery swell then fire.
Please check the temperature of battery when it is working in high
temperature environment.
●
Over- charge and over- discharge, it will cause permanent damage
to the positive pole and negative pole of batteries.
No need to over discharge then recharge every time.