DTS96 charging probs...
Posted: Sun Aug 08, 2010 1:07 pm
Any other DTS96/Pro96 owners have overheating problems when charging the batts?
I've found that with both my DTS96s, if the DC plug is not inserted correctly in the socket during charge, the charge circuit is somehow by-passed and the batts cop the full current causing them to overheat.
This happened today when I noticed a smell of electrical burning. Because of previous incidents, I went straight to the DTS96 which was on charge and low and behold, it was hot around the battery compartment. I removed the battery holder and found the 2000mAH NiMh batts were burning, too hot to touch. The plugpack was burning hot too. The scanner had been on charge all night with no problems, but I think the missus must have bumped the unit while vacuuming this morning and that moved the plug slightly.
I've measured the current going through the batteries during this faulty mode and it hits 1 amp, putting the plugpack in overload. I've opened the scanner with nothing obviously wrong around the DC socket - a schematic would be nice!. I'm using a regulated 500mAH multi-voltage charger and as far as I know, the plug is the correct size for the socket. Downward pressure on the plug seems to put it in this faulty mode. I've learnt to loop the cable over the top of the scanner to relieve any downward force on the plug.
All I can think of is the plug must be the wrong size for the socket, either too thin or too short - but I can't find anything else to suit. Any ideas anyone??
It's scary to think I was about to leave the house and leave it charging
Mike
I've found that with both my DTS96s, if the DC plug is not inserted correctly in the socket during charge, the charge circuit is somehow by-passed and the batts cop the full current causing them to overheat.
This happened today when I noticed a smell of electrical burning. Because of previous incidents, I went straight to the DTS96 which was on charge and low and behold, it was hot around the battery compartment. I removed the battery holder and found the 2000mAH NiMh batts were burning, too hot to touch. The plugpack was burning hot too. The scanner had been on charge all night with no problems, but I think the missus must have bumped the unit while vacuuming this morning and that moved the plug slightly.
I've measured the current going through the batteries during this faulty mode and it hits 1 amp, putting the plugpack in overload. I've opened the scanner with nothing obviously wrong around the DC socket - a schematic would be nice!. I'm using a regulated 500mAH multi-voltage charger and as far as I know, the plug is the correct size for the socket. Downward pressure on the plug seems to put it in this faulty mode. I've learnt to loop the cable over the top of the scanner to relieve any downward force on the plug.
All I can think of is the plug must be the wrong size for the socket, either too thin or too short - but I can't find anything else to suit. Any ideas anyone??
It's scary to think I was about to leave the house and leave it charging
Mike