Function Description - Bosch BAT 415 Original Instructions Manual

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Function description

Figure 2 shows the characteristic charging curve for the
BAT 415.
In phase 1 of the charging process, the charging current
I is approx. 15 % of the battery capacity set on the cont-
1
roller (Fig. 1, item 8). The green LED flashes rapidly.
When the battery has reached the final charge voltage
U , the charging current I
1 1
of the battery capacity has now been reached. The
battery can be used as a starter battery. Phase 1 (main
charging) is complete when the charging current I
below approx. 1% of the battery capacity. The battery is
then approx. 97 % charged.
Characteristic charging curve
I = 15% of Ah controller
I
1
U Warm = 14,0V
1
U Cold = 14,4V
1
I = 1% of Ah controller
U
2
Phase 1
Green LED flashes rapidly
Fig. 2: BAT 415 characteristic charging curve
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1 689 979 943 2012-10-24
starts to fall. Around 65 %
falls
1
Phase 2
Green LED flashes slowly
In phase 2, the charging current I
set battery capacity. The green LED flashes slowly. Pha-
se 2 is time-controlled and lasts for 65 % of the main
charging time (phase 1). The charge voltage is limited to
U . At the end of phase 2 the green LED is constantly lit.
2
Example: With a set battery capacity of 80 Ah, the char-
ging current I is approx. 12 A and the charging current
1
I is approx. 0.8 A.
2
In phase 3, the charging current is always activated
if the battery is below the voltage U
current remains active until the charge voltage U
reached.
U Warm = 14,4V
2
Cold = 14,8V
U
2
Phase 3
Green LED constantly lit
is approx. 1 % of the
2
. The charging
3
is
1
U = 12,7V
3
t
Robert Bosch GmbH