Checking the power reserve and power generation amount
Indication of power reserve in levels
Level
Power reserve
indication
Duration
1.5 - 1.2 years
(approx.)
Power reserve
is sufficient.
Meaning
OK for normal use.
26
4
3
1.2 years -
10 months
Power reserve is OK.
2
10 -
4 months -
4 months
5 days
Power reserve
is getting low.
Charge immediately.
1
0
5 days or
shorter
Insufficient
charge
warning has
started.