Fujifilm NP-W126S Battery For X-T4, X-T3, X-T2, X-Pro2 X-A7 etc - Genuine
This is the new battery from Fuji. The NP-w126s is not the replacement of the NP-w126 but it is more advanced. The "S" version runs cooler than the non S and this is important when videoing in 4k