¥ Please read the user manual carefully before initial use.
Full charge the POWERTUBE Ⅱbefore using. If the product will not
be used for a while then charge it to its full capacity. Charge it every
3 - 4 months to maximize its life and performance.
¥ Do not expose the product to heat sources or fire as the battery in
it may explode.
¥ Do not expose the product to moisture or rain.
¥ Do not keep jewellery, keys or other metal objects near the product
to avoid damage to the input or output terminals.
¥ Do not contact the product with metal or sharp tools, do not drop it
and do not put any heavy items on it.
¥ Do not attempt to disassemble, repair or change the battery pack
as this would cause it to overheat, burn or explode.
¥ If the product emits an unusual odour, becomes abnormally hot,
changes in colour or shape, please stop using it immediately.
¥ Do not insert or pull out the plug forcibly as this may cause
damage to the product.
¥ Do not use strong chemicals or detergents to clean the product.
¥ Please use the computer’s USB port (5V 1A) or the Tuncmatik
Mobile Chargers (5V 1A) to charge the product. Max. 1A. If you use a
poor quality charger and cause any damage, our company cannot
take any responsibility.
Instructions