On the other side of the PCB, the two solder joints to the right and left of resistors R28 and R28 seemed to have some burn residue on them. The negative lead (where the white strip on the cap is) inserts through the area of the board that has diagonal lines through it. If you replace the capacitor, make sure you insert the new one using the correct polarity. It can be found just to the left of the yellow transformer. On my board, it was a black 680uF 10V radial cap.
Duracell rechargeable batteries instructions driver#
A driver too small will strip them.Ĭapacitor C5, on the beige side of the circuit board, seemed to be bulging a little. While the screws are unusual, the correct size slot screwdriver will remove them. So you'll need soldering skills, or you'll need to know someone with soldering skills to do this repair.įirst, unscrew the four screws on the back of the charger. I needed to desolder a capacitor and replace it with a new one. In such cases, the charger may be damaged. If the the more depleted batteries charge in this charger, then the charger is likely working as designed. Before charging batteries in any charger, ALWAYS ensure compatibility with the charger, or you could risk overheating, or even explosion.Īnother thing to try before disassembly is to deplete the batteries a little, by putting them in a flashlight, music player or similar until they have run down (but preferably are not dead). Sometimes such batteries will even charge in a smart charger, which does test the batteries, but that charges at a slower rate. To test this, try inserting those batteries into a different, (dumb) charger which does not test every battery before starting the charging process.
Sometimes, if the charger mistakenly detects that one of the batteries (or its pair in the slot on the opposite side) is already charged enough, it will not start the charging process. I cannot recall the status of the LED light on the unit.įirst, I suggest experimenting with the batteries you have, to verify if the charger is the problem or if it's the batteries (or their charge state). In my case, the charger just stopped working one day.
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