Short answer: the NP-W126S is Fujifilm’s widest-fitting X-series battery, covering 36 bodies in the official charts. The split is the X-T4. The X-T3 and earlier X-T models, the entire X-Pro and X-E lines, the X100F, X100V and X100VI, the X-S10, X-H1 and newer bodies such as the X100VI, X-T50, X-T30 III, X-E5, X-M5 and X half all take the NP-W126S. The X-T4, X-T5, X-H2, X-H2S and X-S20 moved to the NP-W235 and are not interchangeable. Fujifilm also states explicitly that the NP-W126 and NP-W126S fit exactly the same cameras; the S version differs in high-draw behaviour, not in which bodies accept it.
The compatibility list, grouped by series
This table merges the 25 current bodies listed on Fujifilm’s Chinese product page with 11 older and bridge-camera entries from the English support chart, for 36 bodies in total. Older bodies are listed with the NP-W126, but Fujifilm specifies that both cells cover identical cameras.
| Series | Bodies using NP-W126S | Count |
|---|---|---|
| X-T | X-T1, X-T2, X-T3, X-T10, X-T20, X-T30, X-T30 II, X-T30 III, X-T50, X-T100, X-T200 | 11 |
| X-E / X-Pro | X-E1, X-E2, X-E2S, X-E3, X-E4, X-E5, X-Pro1, X-Pro2, X-Pro3 | 9 |
| X100 | X100F, X100V, X100VI | 3 |
| X-A / X-M | X-A1, X-A2, X-A3, X-A5, X-A7, X-A10, X-M1, X-M5 | 8 |
| X-S / X-H / others | X-S10, X-H1, X half, FinePix HS30EXR, FinePix HS50EXR | 5 |
The most reliable check is not memorising model numbers but reading the marking inside the battery compartment: NP-W126S or NP-W126 means this table applies. See the NP-W126S replacement battery for the fit we stock.
Bodies that are definitely not compatible
| Body | Actual battery | Why it will not fit |
|---|---|---|
| X-T4, X-T5, X-H2, X-H2S, X-S20, GFX 100S family | NP-W235 | Different size and contact layout, roughly double the capacity |
| X100T, X100S, X100, X70, XF10 | NP-95 | An older generation with a different shape |
| GFX 50S / 50R / 100 | NP-T125 | Medium-format bodies only |
Moving from an X-T4 to an X-T5 is painless: both use the NP-W235 and existing cells carry over. Moving from an X-T3 to an X-T4 means replacing the whole battery set. See the NP-W235 category for that system.
Original specs versus our replacement cell
| Item | Fujifilm NP-W126S | Replacement cell |
|---|---|---|
| Nominal / maximum voltage | 7.2V / 8.4V | 7.4V platform |
| Rated capacity | 1260mAh | 1210mAh (1050mAh for the USB-C version) |
| Dimensions | 36.4 × 47.1 × 15.7 mm | Same form factor |
| Weight | About 47g | Same class |
| Operating / charging temperature | 0–40°C / +5–40°C charging | Use within the camera’s range |
Do not compare mAh across different voltages; use Wh when the voltage differs. In practice, screen-on time, playback, stabilisation and cold weather move runtime far more than a few tens of mAh.
Which bodies ship with a charger
Fujifilm marks the bundled charger as N/A for newer bodies: X100VI, X-T50, X-T30 III, X-E5, X-M5, X half, X-S10, X-Pro3 and X-E4 ship without a desktop charger, so you charge in-camera over USB-C or buy the BC-W126S. Early bodies such as X-T1, X-T2, X-Pro2 and X-E3 came with a BC-W126 or BC-W126S. Check whether you own a charger before buying a second cell — it affects daily use more than capacity does.
More on this battery is collected in the NP-W126S category.
FAQ
Does the NP-W126S fit the X-T4?
No. The X-T4 was the first X-T body to move to the NP-W235; the compartment and contacts changed. The X-T3 and earlier X-T models use the NP-W126S.
Are NP-W126 and NP-W126S interchangeable?
They fit the same cameras, as Fujifilm states explicitly. The S version is tuned for higher-draw bodies from the X-T3 onward and holds voltage better in bursts and 4K; older bodies run fine on either.
Do the X100VI and X-T5 share a battery?
No. The X100VI takes the NP-W126S and the X-T5 takes the NP-W235. Both launched in 2024, which makes this the easiest mix-up.
What is the quickest way to check?
Read the print inside the battery compartment, or use the first table here. Remember the X-T4 split: later high-end bodies mostly use the NP-W235, while the X100, X-E, X-M, X-T50 and X-T30 III lines still take the NP-W126S.