Battery Charger Design - Bosch BSL 2470 Repair Instructions

Use potentiometer to set higher battery
3

Battery charger design

650
44
2
22, 24
23
26
Fig. 1
6

charge current
Is higher
battery charge current
displayed?
Yes
Switch off battery charger
Disconnect test battery
Unplug power cord!

10
9
1
7
43
42
8
5
56
Switch off battery charger
No
Fig. 2
1 Rear panel
2 Power transformer
4 Rectifier
5 Power relay
7 Triac
8 Printed circuit board
4
9 Front frame
10 Front plate
11 Ammeter
25
13 Red LED
14 Green LED - “Maximum charge reached” display
15 Yellow LED - “Charging
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)
Unplug power cord!



12, 13
12, 14
12, 15
17
16
11
- “Mains On” display (continuous light)
- at reverse polarity or excess voltage
at battery terminals (flashing LED)
process
(continuous light)
“Battery under-voltage” display (LED flashes)
19, 20
21
16
18
underway” display