Charging Spare Batteries - AT&T E5900B User Manual

Appendix

Charging spare batteries

Optional spare batteries (sold separately) can be kept charged in the base, for quick
replacement when handset batteries become depleted.
In the event of a power failure, the charged batteries in the base will allow you to
make and receive calls from the cordless handset for up to 2.5 hours.
Spare batteries require at least 20 hours to reach full charge.
Slide latch left to open battery drawer.
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Insert spare batteries,
then close drawer.
Caution: Use only the supplied
NiMH battery (80-5461-00-00) or
AT&T model 2AA NiMH replace-
ment battery (SKU 26820). Do not
use alkaline batteries.