Old post, I know. But I need this battery too, and I prefer brick and mortar store for battery like this.
Went to pavilion and didn't manage to find it there.
Anyone else have bought this battery lately? Surely surface pen users have bought their replacement by now.

Thanks, but it's currently out of stock there. Next stock shipment would be in 1 months time...

yea, saw a few similar post like that - some with video too.
for now, i want to play it on the safe side - brick and mortar store purchase of the pure and original AAAA battery.
if not available at all, then online purchase.
salvaging (cannibalizing?) a 9V battery would be last option.

Last time I went there didn't find any. Not even at the GP Battery counter itself. Ended up buying from a seller in Lazada... But still more expensive than 9.90 and brand was unknown to me.

Which radio shack?

Last time I went to mid valley one they didn't have any.

Using Dell XPS12 9250
The Dell pen also uses AAAA battery