Bosch BSL 2470 - 3 Battery Charger Design

6
Use potentiometer to set higher battery
charge current
Is higher
battery charge current
displayed?
No
Switch off battery charger
Yes
Switch off battery charger
Unplug power cord!
Unplug power cord!



Disconnect test battery


3 Battery charger design
Fig. 1
B
O
S
C
H
2
4
V
12
V
B
S
L
2
4
7
0
BSL 2470
A
D
C
A
M
P
E
R
E
S
0
40
80
10
0
60
2
0
BOSC
H
451000117Lt
1
44
9
650
10
7
42
43
8
5
4
25
56
26
22, 24
23
2
Fig. 2
1 Rear panel
2 Power transformer
4 Rectifier
5 Power relay
7 Triac
8 Printed circuit board
9 Front frame
10 Front plate
11 Ammeter
13 Red LED - Mains On display (continuous light)
- at reverse polarity or excess voltage
at battery terminals (flashing LED)
14 Green LED - Maximum charge reached display
15 Yellow LED - Charging process underway display
(continuous light)
Battery under-voltage display (LED flashes)
16 Change-over switch 12/24V
Mains switch
17 Two-way switch for battery temperature
18 Under-voltage button for exhaustive discharge batteries
19 Potentiometer
20 Safety switch
25 Protective cover
43 Power cord
44 Charging cables (red and black)
B
O
S
C
H
24V
D
C
A
M
P
E
R
E
S
0
30
12V
BSL 2470
BSL 2470
A
60
90
4510
0
0
116P
11
12, 13
12, 14
12, 15
16
17
18
19, 20
16
21