For travel, a workable rule is one to two packs per day plus one spare. A short trip of three days or less: 3–4 packs. Around a week: 4–6 packs with a dual-slot charger. Self-drive or trekking routes where power is unreliable: 6–8 packs. Count matters less than the two things people get wrong: packing and the flight rules. The NP-FZ100 is roughly 16.4Wh, well under the 100Wh threshold, but spare lithium cells still belong in your carry-on, never in checked luggage, and the terminals need short-circuit protection.
Estimating from trip length
The table assumes a moderate day of mostly stills with some video mixed in. Heavy video users should add roughly 30–50% on top.
| Trip | Per day (approx.) | Packs to carry | Charger? |
|---|---|---|---|
| Weekend, 2 days | 1–2 packs | 3–4 packs | Optional |
| 3–5 days | 1–2 packs | 4–5 packs | One dual-slot |
| 6–10 days | 1–2 packs | 4–6 packs | Yes |
| Trekking / no reliable mains | 2–3 packs | 6–8 packs | Yes, plus power bank |
| Video-first trip | 3–4 packs | 8 and up | Yes, ideally external power |
These numbers assume an NP-FZ100 rated at 2280mAh / 7.2V / roughly 16.4Wh, delivering around 400–700 frames in mixed room-temperature use. Newer and higher-resolution bodies, or heavy screen use, pull you toward the low end — and planning against the low end is the safer habit. Check the NP-FZ100 compatibility list for your exact body.
Flying and transit: batteries stay with you
- All spares go in the cabin. Checked bags are out for lithium cells, regardless of capacity.
- 16.4Wh is far below 100Wh, so an NP-FZ100 needs no airline approval under FAA and TSA rules. Quantity limits still apply — commonly around 20 spare cells per passenger — so confirm against your carrier before you fly.
- A pack fitted in the camera may travel with the body, but power the camera down and close the compartment.
- Protect the terminals. Keep the retail packaging, fit the plastic cap, or tape over the contacts. Loose packs never share a pocket with keys and coins.
- Trains and long-haul buses treat lithium cells the same way. Pulling the battery case out at security speeds things up.
Packing: no shorts, no crushing, easy to tell apart
Three common approaches
- Dedicated battery case — one slot per pack, crush-proof and short-proof, quick to grab. The right pick from four packs upward.
- Retail packaging plus caps — cheapest option and good terminal protection, but bulky and slow to work from.
- Soft pouch — light and compressible, good for trekking, but check that every slot has a divider so contacts can’t touch.
Number everything
Label each pack and rotate in order. Two reasons: you stop hammering one pack while the rest sit unused, and when one starts running short you know exactly which to retire. Capacity typically falls to around 80% after 300–500 cycles, so a pack that clearly fades mid-trip should be replaced when you get home.
Charging on the road
- Lead with a dual-slot charger. Refilling 2–4 packs overnight weighs less than carrying them.
- Power bank plus USB charger works in cars and cafés. Packs warm slightly while charging; if one is hot to the touch, stop and check it.
- Don’t shoot while charging. Body heat stacks on top of charging heat, and long takes are more likely to trip thermal protection.
- Use every outlet you pass — lunch stops, airport gates, the car’s 12V socket.
- Unplug after the light turns green. Green means full. There’s no benefit to leaving packs parked on the charger.
If video is a big part of the trip, read dummy battery and power adapter options first — running a dummy battery off a power bank cuts the number of packs you carry considerably.
Cold, heat and humidity
- Cold. Below freezing, capacity drops sharply, and near -10°C you may get roughly half of normal. More on this in cold-weather battery behavior. Keep spares in an inside pocket, warm them against your body before use and rotate.
- Condensation. Moving from freezing outdoors into a warm room can fog both body and packs. Seal them in a bag and let them come up to temperature before shooting or charging.
- Heat. A car dashboard in summer gets brutally hot. Don’t leave packs in a parked car, and don’t charge in direct sun.
- Humidity and salt air. Salt mist corrodes contacts. Wipe terminals with a dry cloth when you get home and make sure they’re dry before storage.
FAQ
Can spare batteries go in my checked suitcase?
No. Spare lithium cells are carry-on only. In principle a pack installed in a powered-off camera can travel with the device, but enforcement varies, so carrying everything with you is the safe play.
Is eight packs too many?
On numbers, usually fine — most carriers allow around 20. Packaging is the real issue: each pack needs its own short-circuit protection, because loose bare cells tend to get pulled aside.
Any risk in traveling with third-party packs?
A compliant compatible pack is a legitimate alternative, provided the source is reliable and basic protection circuitry is present. Do one full charge and discharge before you leave and confirm your body reads it and the runtime looks normal.
How should I store packs I won’t use for months?
Hold them at 40–60% charge in a cool, dry spot around 15–25°C and top them up every three months — see long-term battery storage. Neither fully charged nor fully empty is a good state to sit in; both speed up capacity loss.
Charge up before you go. Our NP-FZ100 compatible battery is rated at 2280mAh / 7.2V / roughly 16.4Wh, at around $17.89 per pack, around $22.93 for one battery plus charger and around $36.74 for two batteries plus charger. For more capacity, the TNP-FZ100 (2400mAh, roughly 17.3Wh) runs about $19.66 / $24.70 / $39.92. Travel studios, outdoor clubs and vehicle fleets ordering six or more should use wholesale inquiry — orders above 100 units are quoted by batch.