Heading out for a shoot, should you pack more NP-FZ100 batteries or just bring a power bank? Start with the job. If you shoot stills and move around a lot, carry more cells. If you run long video, a locked-off camera or a livestream, a power bank feeding a dummy battery makes more sense. Travel days that mix both tend to work well with batteries as the main source and a power bank as backup.
The NP-FZ100 is rated at 2280mAh / 7.2V / around 16.4Wh. Official CIPA ratings generally land in the 500–700 frame range, and real-world shooting often delivers roughly 60%–80% of that. Video and continuous burst work cut deeper. Plan around the working number, not the number printed on the label.
Three NP-FZ100 power options, side by side
The table below puts the three common approaches on one page, scored on where they work, what they do well and where they fall short. No single setup covers every job. The right call depends on whether you will move, whether you record video, and whether a wall socket is within reach.
| Approach | Good for | Upside | Limits |
|---|---|---|---|
| More NP-FZ100 cells | Run-and-gun, weddings, travel, press | Swaps take seconds, no cables, stays dependable in the cold (still usable around -10℃ / 14℉) | Weight and cost rise with every cell; needs its own storage |
| Power bank into the body’s USB port | Hiking, city walks, short locked-off takes | One device also tops up phone, mic and monitor; good energy per gram | Depends on the body’s USB power behavior — some Sony bodies barely charge while recording; a cable gets in the way handheld |
| Dummy battery on a power bank or AC adapter | Livestreams, interviews, timelapses, studio | Close to continuous power, no recording cutoff | You are tethered; voltage and connector must match; cheap adapters are a risk |
If your work is mostly weddings, press or events, where stopping is not an option, money spent on cells rarely goes to waste. If you shoot interviews or stream, pairing the NP-FZ100 battery with external power is the cleaner answer; the wiring details are covered in dummy battery and AC adapter setups.
When extra batteries are the better call
- Shooting on the move: a swap takes a few seconds. A cable dangling into a power bank while you chase a moment does not.
- Cold days: lithium cells lose noticeable capacity below 0℃ / 32℉, and around -10℃ / 14℉ you may see roughly half of room-temperature runtime. Carrying spare cells close to your body is the reliable fix.
- Moments you cannot reshoot: ceremonies, keynotes, the one frame that matters. Nothing beats dropping in a fresh cell.
- Heavy burst work: fast drive modes and flash recycling pull big current spikes. A cell feeding the body directly responds better than a USB trickle.
How many cells for a day of shooting
| Day intensity | Workload | Cells to pack | Power bank? |
|---|---|---|---|
| Light | Half day, a few hundred frames | 2 | Optional |
| Moderate | Full day, mostly stills | 3–4 | Yes, top up at lunch |
| Heavy | Full day plus burst or video | 4–6 | Yes, and bring a dual charger |
| Long-form video | Streams, interviews, timelapses | 2 as backup | Dummy battery does the work |
For the full logic behind those numbers, including per-body estimates and mixed stills-video days, see how many NP-FZ100 spares to own.
When a power bank earns its weight
The case for a power bank is energy per gram. A 10,000mAh bank holds roughly the energy of several NP-FZ100 cells, often at lower weight, and it can charge your phone, wireless mic or monitor along the way. It makes sense when you have no reliable socket but do have stretches of sitting still — a car ride, a cafe, a gate wait — or when the shooting is light and you just want to stretch a couple of cells.
Two caveats. Not every Sony body will run off USB while you shoot; some only charge when powered down or idle, so test your own camera before you rely on it. Second, charging while recording generates heat. On long high-bitrate takes, either drop the quality settings a notch or move to a dummy battery.
The combined kit: one packing list
- 3–4 NP-FZ100 cells, sized from the table above
- One dual-slot charger, so a power bank can refill two cells at once on the move
- One power bank with PD output, 10,000mAh or larger
- A hard case or terminal caps, so cells never rub against keys or coins
- Two short cables, to keep strain off the body’s port
- A dummy battery and adapter, if video is the main job
This kit usually weighs less than “just bring three or four more cells,” and the power bank is a general-purpose asset you will use on non-shooting days too. For how to layer it in a bag and adjust the count per trip, battery packing for travel shooting goes deeper.
Flying with NP-FZ100 batteries
At around 16.4Wh, the NP-FZ100 sits well under the 100Wh threshold, so no airline approval is required under TSA and FAA rules. Spare cells go in carry-on only, never in checked bags, and terminals need protection — original packaging, a plastic cap or tape. Some carriers cap how many spares one person may carry, often around 20. Power banks follow the same carry-on-only rule and must have a legible capacity marking, so check your airline’s current policy before you fly. If you are traveling with a dummy battery kit, keep the cables with you as well.
FAQ
Can a power bank charge an NP-FZ100 directly?
Not directly. Run the power bank into a proper NP-FZ100 charger, or use a charger that accepts USB input. Dropping a bare cell onto any non-dedicated output is not something to try.
Does charging while shooting damage the cell?
It adds heat, and heat is one of the main drivers of lithium cell aging. Use it in short stretches and stop if the body or cell gets genuinely hot. In daily use, unplug once the charger light turns green rather than sitting at a hot 100%.
Which is cheaper, more cells or a power bank?
A bank costs less up front, but it cannot solve a shooting interruption. Treat cells as production gear and the bank as a top-up tool. Running both usually costs less than betting on one side.
Will a power bank rescue runtime in winter?
It helps a little, but cold raises internal resistance, so charging efficiency drops too. In winter the better move is more cells kept warm against your body. See our NP-FZ100 cold-weather runtime guide for the full approach.
Our NP-FZ100 compatible battery is rated 2280mAh / 7.2V / around 16.4Wh, at around $17.89 per cell, around $22.93 for one cell with a charger and around $36.74 for two cells with a charger. If you want more headroom, the TNP-FZ100 (2400mAh / around 17.3Wh) runs around $19.66, $24.70 and $39.92 across the same three kits. Tour operators, camera clubs and in-house content teams outfitting a dozen or more at once should use the wholesale inquiry page — bulk orders are quoted case by case.