9v (9.6v) rechargeable NIMH batteries?

Hey guys,

I have a very old paintball gun that used a 9.6v rechargeable battery.

What brands would you suggest, or where would you look to find one affordably?

Something like this was the original I believe: https://www.amazon.com/Spyder-Paintball-Rechargeable-Battery-9-6v/dp/B000PHH71I

I see that Maha makes one, but it’s $12 =/

I see a Tenergy brand one for $5, but it feels suspicious.