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Fujifilm

Fujifilm NP-W126S Li-Ion Rechargeable Battery - Camera Power

★★★★★4.7 (3196 reviews)
4K1260mAh1200mAh

The official NP-W126S upgrade fixes the heat problems that plagued the original battery in your Fujifilm X series camera.

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Overview

The Fujifilm NP-W126S is the revised version of the standard NP-W126 Li-Ion battery, designed as a direct replacement for the entire Fujifilm X series camera lineup. Its core specification — 1260mAh, 7.2V, 8.7Wh — is functionally identical to the original, but the internal chemistry and thermal management have been updated to address a real-world problem: the original NP-W126 ran hot under sustained video loads, particularly during 4K recording, which could cause the camera to pause recording or display heat warnings. The S revision manages that heat more effectively within the cell itself.

For photographers shooting primarily stills, the NP-W126S is simply the current genuine OEM battery — reliable, accurately reported, and built to Fujifilm's tolerances. For videographers, especially those running the X-T2 with the Vertical Power Booster Grip for 4K sessions, the thermal improvement is the meaningful upgrade. Fujifilm's specific recommendation of the NP-W126S for that use case gives it a practical endorsement beyond marketing language. The battery is best suited for anyone who wants to avoid the unpredictable capacity reporting and variable quality of third-party alternatives, or who has experienced heat-related interruptions with the original NP-W126 during video work.

Key Features

Compatible with FUJIFILM X series cameras using NP-W126

Improved heat management compared to NP-W126

1260mAh(min.1200mAh), 8.7Wh, 7.2V

Recommended for X-T2 in conjunction with the Vertical Power Booster Grip to allow 30min of 4K movie recording.

Specifications

Capacity
1260mAh (minimum 1200mAh)
Voltage
7.2V
Energy
8.7Wh
Battery Technology
Lithium-Ion (Li-Ion)
Compatibility
Fujifilm X series cameras using NP-W126
Replaces
NP-W126

Pros & Cons

👍 Pros

  • Improved heat management over the original NP-W126 reduces the risk of thermal throttling during extended video recording sessions.
  • Genuine Fujifilm cell ensures accurate battery level reporting on the camera's display — a known weak point with third-party alternatives.
  • 1260mAh capacity at 7.2V / 8.7Wh delivers consistent shot counts that match Fujifilm's published ratings.
  • Drop-in compatibility with all NP-W126 cameras means no settings changes or firmware updates required.
  • Officially recommended for X-T2 4K recording with the Vertical Power Booster Grip, giving it a specific production-ready validation.

👎 Cons

  • The 1260mAh capacity is unchanged from the original NP-W126 — if overall battery life was your frustration, the S revision doesn't extend it meaningfully outside of heat-related scenarios.
  • No USB-C charging built into the cell itself; requires a dedicated charger or in-camera charging where supported.
  • At the genuine OEM price, buying multiple spares for a full shoot day represents a significant cost compared to third-party multi-packs.
  • Improved thermal management helps but does not fully eliminate heat warnings during prolonged 4K recording on cameras that run hot by design.

Frequently Asked Questions

Yes, they're physically and electrically compatible in every camera that accepted the NP-W126. The "S" revision adds improved heat management inside the cell, which matters most during 4K video recording where the original battery ran warm and could trigger shutdowns on cameras like the X-T2.
The NP-W126S is compatible with the full Fujifilm X series lineup that uses the NP-W126 form factor. Check your camera's manual to confirm NP-W126 compatibility — if your camera used the original, it accepts the S revision.
Third-party cells vary widely — many advertise higher capacity but under-deliver on sustained discharge. The genuine Fujifilm NP-W126S is rated at 1260mAh (minimum 1200mAh) at 7.2V / 8.7Wh, and its real-world shot count aligns with those figures consistently. Third-party cells may not communicate charge state accurately with the camera's battery indicator.
Yes — Fujifilm specifically recommends the NP-W126S for X-T2 4K recording when used with the Vertical Power Booster Grip, enabling up to 30 minutes of 4K. In cameras without a grip, 4K sessions will still generate heat; the improved thermal management in the S version reduces but doesn't eliminate heat-related throttling.
Your existing NP-W126 charger is fully compatible with the NP-W126S — the charging interface is identical. No new equipment needed.

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