[Hidden tips] revived the batteries!

Introduce the hidden tips unusable batteries are revived.

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Revived batteries [methods]

Unusable batteries, single-mindedly rub.
 Batteries is because originally, electricity flowing in chemical reaction mechanism
 One of the batteries because is has slowed the flow of internal battery electric.
 Substance causes a chemical reaction is you still
 Warm chemical reaction and revive friction rub the battery by

It is can be revived.
  ☆ Note

Is not necessarily applicable to all.
  Summary of?? Disaster and emergency “, you can try.


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