Battery Replacement - Insignia NS-HD01 (NOT later model NS-HD01A)

Thank you for the detailed instructions on replacing the battery in the NS-HS01A.

I have the earlier model which, while physically similar, is somewhat smaller and might use a different LiIon battery.

I have scoured the web for replacement batteries, and all sources only list one for the NS-HS01A.

Any knowledge as to whether these models use the same battery or different ones?