Hi guys I was wondering if someone can help me out here. I have a cordless drill and the charger would not charge the battery so I replaced a resister 150 ohm (R1) with a 100 ohm and the 3mm red LED to a 3mm green LED and it started to charge one of the batteries which before it was not charging anything so I figured the burnt out LED was not letting the batteries charge. Then after I put the second battery in which was completely dead the LED indicator blicked and changed from green to a orangey red color and then just went dead so I opened it up again and the big resistor (R2) was not giving me any more reading and when I tested the charger output it was only 4.5 which as before was giving me 15 - 17 volts and the transformer was giving me 17volts. can anyone tell me what might the problem and why it charged one battery with no problems after I replaced the LED and then why did it just die after I put the other battery in? Any help would be greatly appreciated and I added pictures to make it more clear.
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