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3.9 Check Battery Capacity
1.When screen is displayed
as 100% (part of the power is
displayed as 8 grids), it is
fully charged.
2.
When the power display is
less than 20% (part of the
power display is 3 grids), it
means that the power is low.
You should charge or replace
the battery;
3.
When the power is
displayed as 10% (part of the
power is displayed as 1
grid)
，
the power can
support the machine to
continue to work 40-55 steps.
