This accessory bundle contains the FUJIFILM NP-W235 Rechargeable Battery and a FUJIFILM BC-W235 Twin Battery Charger.

FUJIFILM BC-W235 Twin Charger
The FUJIFILM BC-W35 is a twin battery charger for the NP-W235. It is compatible with the FUJIFILM GFX 100S and X-T4.

FUJIFILM NP-W235 Rechargeable Battery
The FUJIFILM NP-W235 is a rechargeable lithium ion battery for select FUJIFILM digital cameras. It is compatible with the FUJIFILM GFX 100S and X-T4.