Huawei W1 Quick Start Manual page 22

Otherwise, it may lead to an electric shock, a short circuit of the
charger, or a fire.
> Do not dispose of batteries in fire as they may explode. Batteries
may also explode if damaged.
> Do not modify or remanufacture, attempt to insert foreign objects
into the battery, immerse or expose to water or other liquids,
expose to fire, explosion or other hazard.
> Avoid dropping the device or battery. If the device or battery is
dropped, especially on a hard surface, and the user suspects
damage, take it to a qualified service center for inspection.
> Improper battery use may result in a fire, explosion or other hazard.
> Promptly dispose of used batteries in accordance with local
regulations.
> The device should only be connected to products that bear the
USB-IF logo or have completed the USB-IF compliance program.
> Only use the battery with a charging system that has been qualified
with the system per this standard, IEEE-Std-1725. Use of an
unqualified battery or charger may present a risk of fire, explosion,
leakage, or other hazard.
> Replace the battery only with another battery that has been
qualified with the system per this standard, IEEE-Std-1725. Use of
an unqualified battery may present a risk of fire, explosion, leakage
or other hazard.
> Do not disassemble or open, crush, bend or deform, puncture or
shred the battery. Otherwise, it may lead to electrolyte leakage,
overheating, fire, or explosion.
Cleaning and Maintenance
> The device, battery, and charger are not water-resistant. Keep them
dry. Protect the device, battery, and charger from water or vapor.
Do not touch the device or the charger with a wet hand. Otherwise,