In fact, this is not a practical watch. The author calls it a " party watch ". It is not suitable for daily use, but it is especially suitable for eye-catching occasions. The standby time is acceptable and in good condition, more than 7 days.
The charging circuit is very simple, because vinatech scap is 3V, the author uses a 3V fixed voltage LDO MCP1700T3002ETT with a 10R resistor to limit the charging , the current + Schottky diode is used to protect the reverse current of the LDO.... The charging voltage drops to Accepts 2.95V;
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