1. Pay attention to the holding gesture when cranking which can protect your
finger and nail from hurting. Keep rotating steadily.
2. In order to assure the using life of the battery and mechanical parts, please
pay attention to the things below:
a. Do not crank it for more than 5 minutes when the power of the battery is
enough (working normally) and less than 15 minutes when it runs out of
power.
b.
When the light is dim or the radio is soundless, it means the battery is
lack of power badly, please turn off the light and radio or crank it for a
while.
c. Cranking it as even as possible (keep rotating steadily, 2.5 or 3 circles
per second is best). Avoid cranking too violently and quickly or changing
the cranking direction abruptly.Too slowly cranking would make current
weak and influence the charging effeciency, and too violently cranking
will possibly damage the driving system.
d. Do not crank it for a long time or too violenlyt.
e. In order to prolong the lifespan of the battery, you should crank it for at
least one minute once a month.
3. Do not drop or hit this product.
4. Avoid using corrosive liquid or hard cloth to cleanse.
5. Turn off the light when charging to enhance the efficiency of charging.
6. The product will be a little hot if cranking for a long time.
7. We do not give notice again if the parameter of this product changed.
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