This is a cordless then scrap it it will cost you more for parts then its worth.And you won't be able to find them.
I have a business and lots of tools like this don't buy cheap tools if you want to have them for more then 1 use I'm not saying you can't get good deals on tools .You just need to look at them good before you spend money on them .The price difference 10 to 15% more for the good tools