Robert Bosch GmbH 1 689 989 330 | 2016-11-30
Managing Power | DCU 220 | 25 | en
Battery Pack
DCU 220 has two battery packs. The battery pack is the internal power source for
DCU 220. It is rechargeable using the AC adapter.
NOTE: Care and maintenance information for the battery is provided in the “Battery Pack
Guidelines” section in Chapter 7.
Charging the Battery Pack
NOTE:
Charging will not start if the battery’s temperature is outside the allowed range, which
is between 0 °C (32 °F) and 50 °C (122 °F). Once the temperature meets the
requirements, charging automatically resumes.
During charging, do not disconnect the AC adapter before the battery has been fully
charged; otherwise you will get a prematurely charged battery.
To charge the battery pack, connect the AC adapter to DCU 220 and an electrical outlet.
The Battery Charge Indicator ( ) on DCU 220 glows amber to indicate that charging is in
progress. You are advised to keep DCU 220 power off while the battery is being charged.
When the battery is fully charged, the Battery Charge Indicator glows green.
The two battery packs are charged in parallel. It takes approximately 5 hours to fully charge
the two battery packs when the power is off and approximately 6 hours when the power is
on (may need a longer charging time at lower temperatures).
CAUTION: After DCU 220 has been fully recharged, do not immediately disconnect and
reconnect the AC adapter to charge it again. Doing so may damage the battery.
NOTE: The battery level may automatically lessen due to the self-discharge process (0.21
% per day), even when the battery pack is fully charged (100 %). This happens no matter if
the battery pack is installed in DCU 220.
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