Cold-Weather Camera Batteries: Spares, Warm Pockets and Charging
Cold weather makes camera batteries deliver less, but the loss is mostly temporary. The practical fix is a rotation: keep your spares in a warm inside pocket, swap in a warm one when the camera battery runs low, and let the cold one warm up in your pocket. Do not charge a battery while it is still cold. Bring it to room temperature first.
This guide is about managing the batteries you already have in the cold. If you are deciding how many to own, read our battery count guide. If you are checking battery rules for a flight, see our carry-on and battery guide.
What cold does to a lithium-ion battery
Most modern cameras use lithium-ion batteries. According to Battery University's article on discharging at high and low temperatures, cold increases a battery's internal resistance and reduces the capacity it can deliver. Its general example is a battery that gives full capacity at room temperature but only about half that capacity at around 0 degrees Fahrenheit (-18 C). The same article says the lost capacity returns once the battery warms, and that a cold, nearly flat battery may deliver more runtime after warming. That page is a general reference on lithium-ion cells, not a camera maker's spec, so use it for the principle rather than the exact numbers.
What that means in the field: a battery gauge that read half full indoors can drop quickly outdoors, and the camera may shut off with a battery that still has charge once it warms up. That is no reason to panic. It is a reason to rotate.
The warm-pocket rotation
The routine takes a minute to set up:
- Start with every battery fully charged and warm. Put the camera battery in the camera and the spares in a case.
- Carry the spares in an inside pocket, close to your body, not in a bag or an outer pocket.
- When the camera battery drops quickly or the camera shuts down, swap in a warm spare.
- Put the cold battery in the inside pocket. Body warmth may give it some runtime back, so it can go back in later.
- Keep the dead or cold ones separate from the charged ones, using two labelled cases or pouches, so you do not mix them up.
| Situation | What to do | Why |
|---|---|---|
| Camera shuts off, gauge shows charge | Swap in a warm spare; warm the cold one | Cold reduces deliverable capacity temporarily |
| Long wait between shots | Keep the camera inside your jacket | Keeps the installed battery warmer |
| Need to charge after a shoot | Let the battery reach room temperature first | Charging a cold lithium-ion battery can damage it |
| Using a power bank outdoors | Keep the power bank in an inside pocket too | It is also a lithium-ion battery |
Do not trust the gauge
The battery meter is only an estimate. In the cold, the number can fall faster than normal or jump back up after a swap. Treat the gauge as a rough guide and swap early, before the camera forces the issue mid-shot. If you shoot a long exposure or a time-lapse, start with a warm, full battery, because a shutdown partway through ruins the sequence. Our time-lapse setup guide covers the planning side.
A simple labelling habit
Number your batteries with a marker or small stickers, and put them in two cases: one for charged spares and one for used ones. Then, in the dark and cold, you never wonder which is which. After a shoot, charge the used ones in order, once they have warmed, so the numbering stays meaningful.
Do not charge a battery while it is cold
This is the one rule with real consequences. Battery University's article on charging at high and low temperatures says consumer lithium-ion batteries should not be charged below freezing, because charging then can cause lithium plating that permanently reduces performance and safety. The article advises warming a cold battery to a moderate temperature first and, for consumers, charging at room temperature only.
So when you come in from the cold, leave the batteries in their case and let them warm up before putting them on the charger. Many chargers and cameras also have their own temperature limits, which the manual states. Check the manual for the allowed temperature range, and do not rely on the charger to notice.
Our battery charger explainer covers charger types. Avoid shortcuts such as a heater vent, a stove or hot water to speed up warming. Warmth from a pocket is enough, and the maker's manual is the place to check anything more.
A cold-day carry list
- The camera battery, installed and fully charged before you leave.
- Charged spares in a case, kept in an inside pocket.
- A second case or pouch for used batteries.
- A power bank only if your camera supports USB power, also kept warm.
- Gloves that let you work the battery door, since fiddly latches are harder in the cold.
- A sealed bag for bringing the camera indoors, so moist room air does not condense on the cold camera.
What to buy for a cold day
Spare batteries, matched to the camera
Buy spares that match the battery model printed on the one in your camera, as we explain in our battery model checks. Third-party packs are another option, and our OEM versus third-party guide covers the trade-offs.
A spare battery that matches your camera
Search with the exact model number from the battery label, and prefer a seller that lists compatible cameras clearly.
Cases that keep terminals covered
A hard case stops the battery contacts touching keys, coins or other batteries in your pocket. It also keeps the charged and flat batteries separate. Pick one that fits your battery model.
A hard case for spare batteries
Choose a case that fits your battery model and that you can open with gloves on.
A power bank for USB-powered cameras
If your camera can charge or run from USB, a power bank is another spare, but it will lose capacity in the cold too. Check the manual for what the camera supports, and see our power bank guide for what to compare.
A USB-C power bank
Confirm your camera accepts USB power before you buy, and keep the bank warm like any other battery.
Check your manual first
Camera makers state an operating temperature range in the manual, and many mention that battery performance drops in the cold. We quote no range because it varies by model. Read yours, and treat anything beyond it as a risk to the camera as well as the battery. The same applies to the charger, whose manual may give a separate range for charging. If the manual says nothing about cold, ask the maker's support team before relying on the camera in harsh conditions, and keep a fully warm spare as insurance.
Cold lowers the capacity a camera battery can deliver, but the loss is largely temporary. Carry spares in an inside pocket, rotate them, and give a cold battery time to reach room temperature before you charge it. Keep terminals covered with a case, and check your manual for the temperature limits.
Read for this guide: Battery University, BU-502 Discharging at High and Low Temperatures (cold increases internal resistance and reduces capacity; capacity returns on warming) and Battery University, BU-410 Charging at High and Low Temperatures (no charging of consumer lithium-ion below freezing; lithium plating; warm first). These are general lithium-ion references, not camera-maker specifications. No camera's operating range is quoted; read the temperature limits in your manual and the charger's instructions.
Frequently asked questions
Does cold weather permanently damage camera batteries?
Cold mostly reduces the capacity a battery can deliver, and that returns as it warms. Charging a lithium-ion battery while it is below freezing is the bigger risk, because it can cause lasting damage.
Where should I keep spare batteries in the cold?
In an inside pocket close to your body, in a case that covers the terminals. Avoid outer pockets and the bottom of a camera bag.
Can I warm a battery with a heater or hot water?
We do not recommend it. Body warmth from a pocket is enough, and the camera maker's manual is the place to check anything else.
Why does my camera shut off with charge left in the battery?
Cold raises a battery's internal resistance, so the camera can see too little voltage under load. Swapping in a warm spare often restores it.
When can I charge a battery after shooting in the cold?
Let it come up to room temperature first, then charge it. Check your charger and camera manual for the allowed charging temperatures.