Bingobelle

None of us can really know what´s wrong with the drill. If the drill was mine I would take it apart, it is very easy. Inspect the motors and brushes and buy what ever part that is worn out. In most case you can use your nose on the motor to sense if the arnature have been overheating. If so change the motor. If brushes is worn out, buy some new brushes for a few dollars. Personaly I can not se any point with buying new clamshell, chuck and gearbox if there is nothing wrong with them. A new clamshell with have some new scratches first week anyway. To me all that parts sounds like a new drill and I can really not see the point anymore. Why change something that works and is not broken? This is just how I see on it.

Maybee it is only the brushes that cost a few dollars.

One more interesting thing that I do not think anyone have asked before about. Dewalt and makita just to name a few claims their li-ion battery will charge upp to 2000 cycles. But what is really a cycle? They say no memory effect so you can charge them when ever you like to. That´s fine but if you for example charge your battery 10 times and thay are only drained for example 1/3 of a full charge. Will this shorten the battery 10 charges of it cycle life or only 3 charges? Personaly I only charge them when the battery is empty, do not se any point to put the battery on the charger after a couples of holes drilled. But I think you can see my point. If you have a habit to put the battery on the charger very often ( because no memory effect ) when not needed to, will you be able to have the whole RUNTIME from your batteries?

You are talking about DC9180 and DC9181. But on my batteries it says DE9180. What is the diferent. I´ve the nano symbol and it was advertised to be able to recharge 2000 times. Maybee it is written DE on batteries sold in europe and DC on batteries sold in the states. I bought my machine in Sweden. And how much performance is expected to be left after 2000 cycles? !00 percent or maybee just 50 percent. Or is it going to downgrade after 2000 cycles?

I missunderstood the question.