Trackpad jumps around unless....

[G.Beard]

So an A1398.Put a different battery in there.
Trackpad jumops around but if I brush my hand flat over it, it's fine for a while.
Jumps again, brush hand, fine.

I have ideas about static or whatever but this is based on absolutely nothing but childhood CRT TVs.

Anyone know why this is happening?

 

[dukefawks]

Chinese charger issue or bad trackpad. Possibly damaged cable during battery install?

 

[JohnB8812]

I once had an 820-3332 that did this and it ended up being the pad itself.

 

[G.Beard]

I once had an 820-3332 that did this and it ended up being the pad itself.

LOL, yes, you could well be on to something there