I have been given a Bosch battery charger (along with a battery) for a fairly chunky looking battery powered drill.
The problem apparently is that the charger does not charge batteries. The battery appears to have about 15vdc (marked as 24v 1.2Ah). I have popped the covered off the charger, and there is about 35vdc across the charging terminals.
However when I attach the battery, the voltage drops to about 15vdc - as if the charge has no current supply.
I have had a quick look at the circuit board and it looks ok. There is also an LED attached to the board which briefly flickers when the battery is attached and then goes out again.
I was lead to believe the LED is meant to flash until the battery is charged and then remain on to show 'fully charged'.
The details I have for the unit are: Typ 1617 224 006 (then 820 in an ellipse) prim: 240vac, 50/60Hz, 30w sek: 24vdc, 0.6a, 15va
Any suggestions?!
Cheers, Matt
ps. device is apparently a bit over a year old, but has not had much use.