The role of the charging treasure circuit board: note if it plays three protective roles: over-charge protection, over-discharge protection, over-temperature protection. For example, when it detects that the battery is full, it stops charging and protects the battery.
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Technical principle of charging treasure:
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The real meaning of the charging treasure is basically made of polymer lithium battery as a storage unit. It is itself a lithium battery polymer storage device, voltage regulation through the IC chip, and then charging or storage by connecting the power line and then the stored electricity can be released.
Battery protection circuit board, anti-overdischarge, reverse connection, short circuit protection. A short circuit or reverse connection on the outside of the battery will stop the output until it is reactivated on a charge.