6
10.1 Continued
3 Months Storage Characteristics (battery fully charged and NOT
connected to HT870):
Storage Temperature:
0 degrees C (32 degrees F) 10 to 20
% drop
in battery capacity through self-
discharge
20 degrees C (59 degrees F) 30 to
40% drop in
battery capacity through self-
discharge
Note:
At a storage temperature of 45 degrees C (113 degrees F),
after 1.5 months the battery capacity has dropped by 95%.
Battery Service Life: 300 charge/discharge cycles (minimum)
Memory Effect: NiCad batteries have a "memory effect", where the
battery voltage drops in 2 levels during operation
(discharge). The first level drop is approximately 8% reduction
in capacity for the first 30 to 40 minutes of operation followed
by a sharp 60% drop in capacity during the next 10-15 minutes of
operation. This "memory effect" is caused by repeatedly charging
the batteries when they have been only slightly discharged. This
is a temporary problem which can be rectified by performing 2 to 3
complete discharge/charge cycles.
10.2 BATTERY PACK CHARGING
CHARGING
CHARGING DEVICE CURRENT CHARGING TIME
Wall Charger (supplied 45 mA
16-17 hours for a
with HT870) (Standard
full charge;
charge rate)
however, charger may
be left on indefinitely
Optional Mobile Adapter 45 mA
15-16 hours for a
(cigarette lighter plug)
full charge with
Note: Some mobile lighter
radio turned OFF.
sockets are "off" if
Radio may be
the ignition switch
operated with
is "off".
charger plugged in but
batteries will not charge
because charging current
is used by the radio.
Optional Desktop Quick -----
1 hour with
Charger and stand
radio turned off for
a full charge (See note).