Safety
Battery & Charging Safety
Most of our lasers and flashlights run on rechargeable lithium-ion batteries, such as 18650 and 16340 cells. These batteries store a lot of energy, and a damaged, misused, or poorly charged battery can overheat, leak, or catch fire. Follow these steps every time you handle, charge, or store one.
The essentials
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Use the right battery
Only use the battery size and type listed for your product, from a reputable brand.
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Never charge unattended
Stay nearby while batteries charge, and charge them on a hard, non-flammable surface.
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Stop if something seems wrong
If a battery gets hot, swells, leaks, smells, or hisses, stop using it right away.
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Recycle, don't trash
Take old or damaged batteries to a battery recycling drop-off. Never put them in household trash.
Choosing batteries
- Use only the battery size and type listed for your product. Never force in a battery that does not fit.
- Buy from reputable brands and sellers. Counterfeit and low-quality cells can lack important protections and are more likely to fail.
- Insert batteries the right way around, matching the + and - markings.
- In products that take more than one battery, use matching batteries of the same brand, type, and age.
Handling
- Handle batteries with clean, dry hands, and keep them away from water and other liquids.
- Do not drop, crush, puncture, bend, or take apart a battery. Damage can cause leaks, fire, or an explosion.
- Never carry loose batteries in a pocket or bag with keys, coins, or other metal. Metal touching both ends can short-circuit a battery and make it overheat. Carry them in a plastic battery case.
- Never use a battery with a torn or damaged wrapper. The wrapper insulates the battery, and damage can cause a short circuit.
Storage
- Store batteries in a protective case or sleeve.
- Keep them in a cool, dry place, away from direct sunlight, heat sources, and freezing temperatures. Do not leave them in a hot car.
- Remove batteries from your laser or flashlight if you will not use it for a while.
- Keep batteries out of reach of children and pets.
Charging
- Use a charger made for your battery's type and size, from a reputable brand, with overcharge protection. Follow the charger's instructions.
- Never leave batteries charging unattended, and do not charge them overnight while you sleep.
- Charge on a hard, non-flammable surface, away from anything that can burn, such as curtains, bedding, paper, oils, and firewood.
- Let a hot battery cool down before you charge it, and do not charge in very hot or freezing conditions.
- Unplug the charger and remove the battery once it is fully charged.
USB charging
- Use a good-quality USB cable from a reputable brand, and replace cables that are frayed or damaged.
- Plug into a USB port or wall adapter with the right voltage and current for your product. Avoid cheap or damaged adapters.
- Watch the charging indicator, and unplug the cable once charging is complete.
- Do not use the product while it charges unless its instructions say you can.
If something goes wrong
Stop using or charging a battery right away if it:
- Gets unusually hot
- Swells, bulges, or changes shape
- Leaks, smokes, hisses, or smells unusual
- Is dented or punctured, or has a damaged wrapper
Unplug the charger if you can do so safely, and move away from the battery. If a battery smokes or catches fire, leave the area and call 911 or your local emergency number. Do not use or charge that battery again.
Disposal and recycling
- Recycle old, damaged, or swollen batteries at a battery recycling drop-off. Many hardware and electronics stores accept them.
- Never put lithium-ion batteries in household trash or curbside recycling bins. They can start fires in garbage trucks and recycling facilities.
- Cover the battery ends with clear tape before you drop them off, to prevent short circuits.
Not sure which battery or charger to use?
Ask us before you buy or charge, and we will point you to the right one.