
Hi.
I suggest you don't buy the 2000mAh Chinese one. It's fake, it's recycled and lasts less than the original one, as reported by multiple users.
You can consult my thread as well, then do as you see fit:
https://gbatemp.net/threads/2000mah-ds-lite-battery-reliable-or-fake.584996/
And also this:
https://gbatemp.net/threads/help-my-ds-cannot-be-charged-after-a-hsabat-battery-replacement.585877/