Battery charger for the PUMA T2 hand-held radio
Technical Manual
Functional Description
Page 24
OTE Proprietary Information
P/N: 779-0357/02
Revision 04
The discharging button (S1) works if the battery is inserted into the BCP2-850
upper slot (fig. 3.4) as well as discharging buttons (S1, S2, S3) work if the batteries
are inserted into the three upper slots of the BCP6-850 battery charger.
If during the fast charging process of a battery, inserted into the upper slot (the one
enabled for discharging), you press the red button close to the slot then there
starts the battery discharging process and the red LED starts blinking. Once the
the discharging process is over, the battery charger switches back to the charging
mode.
At this point, if you would like to make another charging-discharging process you
had to pull the battery out of the slot and then insert it into the slot again and finally
press the discharging button.
If you press the discharging button when the battery is inserted into the lower slot,
nothing happens.
Fig. 3.4:
Battery charger and fast discharging button (details)
At first we have a voltage controlled constant current recharging (800mA) till the
cut-off is reached.
As soon as a voltage decrease (technically defined -
∆
V) is detected at the battery’s
terminals, the cells are charged and the fast charging current must come to an end
not to degrade the cells.
