I have a Bosch PSB 1800 LI-2 cordless drill. I've had it for about 2-3 years, but it doesn't have many "miles on the clock". It's a lovely bit of kit and I've had no problems with it, until recently. I was trying to remove some particularly stubborn stripped screws, using screw extractor bits. I managed to remove some of them, then my drill developed a fault.
It started cutting out intermittently. The battery is fully charged, so I know it's not a lack of power. When I pull the trigger gently to run it on anything up to about half-power, it might work for up to a minute before cutting out. If I try to run it on anything more than about half-power, it cuts out within 3 seconds. Either way, it's not much use for any serious jobs.
Has anybody had similar problems with their drills? Does anybody know whether this is something that can be fixed, or do I need to buy a new drill?