C
C
h
h
a
a
r
r
g
g
i
i
n
n
g
g
B
B
a
a
t
t
t
t
e
e
r
r
i
i
e
e
s
s
A fully charged battery will last for eight weeks under normal
working conditions before needing to be recharged. When the
gauge displays BAT on the display, the gauge has only a few
hours left before automatically turning off.
The batteries can then be fully recharged with the AC charger.
Give the batteries a full charge when recharging; they cannot be
overcharged.
For emergency use, a 30-minute recharge will allow several
hours of usage. However, do not charge the batteries if the
voltage is not low. Frequent, unnecessary recharging will
shorten the battery life.
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