Sony NP-FZ100

Wasabi Power Sony NP-FZ100 Battery — Cost-Effective Backup for Professional Shoots

The gist: A third-party NP-FZ100 replacement with in-camera charge display and a 3-year warranty that lets Sony a7/a9-series professionals carry backup power without the OEM price premium.

• Decoded charge readout: Battery percentage displays in the viewfinder and on the camera screen — no guessing remaining run time during a client interview or photo session.
• Broad camera compatibility: Works with the Sony a7 III, a7 IV, a7C, a7R III/IV, a7S III, a9, and a9 II — the core lineup used for professional photo and video work.
• 3-year warranty coverage: Longer than most third-party battery warranties, providing confidence on paid client shoots where a failed battery mid-assignment isn’t an option.
• Budget-friendly rotation: At ~$25, two Wasabi batteries cost less than one OEM NP-FZ100, making a full battery rotation affordable even on a tight freelance equipment budget.

Wasabi Power states the battery meets or exceeds OEM electrical standards using Premium Grade A cells at 7.2V; note the Sony OEM NP-FZ100 is rated 2280mAh vs. the Wasabi’s 2000mAh, so the OEM provides modestly more capacity per charge.

Best for: Sony a7/a9-series photographers and videographers who need reliable, affordable spare batteries for client work and extended shoot days. Skip it if: Your Sony FX3 is on firmware 4.0 or newer — that update blocks third-party batteries. Runs ~$25 — check the current price before buying.