Fast answer: Buy genuine Sony NP‑FZ100 batteries first. For FX30 video, plan for 2–3 batteries depending on how long you record. If you’re filming paid work or long sessions, having a spare battery is the difference between “keep filming” and “pack it up”.
Part of: Sony FX30 Guide
Do this first (simple power plan)
- 2 batteries = most people (one in the camera, one spare).
- 3 batteries = long filming day, events, cold weather, or if you just want less stress.
- Charge the night before and label them (1, 2, 3) so you rotate.
Why you should start with genuine NP‑FZ100
You can save money on a lot of gear, but batteries are the place where weird failures happen. If a battery behaves badly (overheats, swells, disconnects, suddenly drops from 40% to 0%), it can ruin a shoot.
So the simple rule is: start with genuine batteries. After that, if you want to try third‑party, do it slowly and test hard at home first.
Recommended picks
Battery (default): Sony NP‑FZ100
This is the safe baseline. If you only buy one thing from this page, make it this.
Simple charger: Sony BC‑QZ1
One battery at a time. Perfect if you only own 1–2 batteries.
Upgrade if you own 3+ batteries: Sony BC‑ZD1 dual charger
Dual charging is a real quality-of-life upgrade for video days.
Manual-backed notes that actually matter
4K can shorten battery time, especially in the cold.
Sony says: “Especially during 4K shooting, the recording time may be shorter under low temperature conditions. Warm up the battery pack or replace it with a new battery.” (Sony ILME‑FX30 Help Guide, “Notes on recording for long periods of time or recording 4K movies”, p. 23)
How many batteries do you actually need?
- Short sessions (under 1 hour): 2 batteries is usually fine.
- Interviews, lots of takes, multiple locations: 3 batteries keeps you moving.
- Cold weather: expect less runtime, bring an extra.
Avoid these traps
- Going out with one battery: you’ll spend the whole shoot watching the battery icon.
- Not testing at home: do one full practice run (charge → film → recharge).
- Mixing random batteries on paid work: if you try a third‑party option, still keep at least one genuine spare.
Setup steps before a real shoot
- Charge everything the night before.
- Label batteries (1, 2, 3) and rotate them.
- Record a 5‑minute test clip in your real settings.
- Pack the charger you actually need (single for 1–2 batteries, dual for 3+).
Bottom line
If you want the simple answer: buy 2× NP‑FZ100 and the BC‑QZ1. If you film long days, buy 3× NP‑FZ100 and the BC‑ZD1 dual charger.
