Attributes：：
Brand: Maohong Technology
Model: 4-pin Fitbit versa3
Product number: 4-needle Fitbit versa3
Source category: spot goods
Accessory category: Charger
Material: PVC
Wearing method: wrist strap style
Appearance size: 30cm/100cm
Product weight: 17g/38g
Watch chargers are typically used to provide electricity for devices such as smartwatches. The following is a detailed description of the watch charger:
Appearance design: Watch chargers generally adopt a miniaturized design, which is convenient to carry and use. The appearance materials are mostly plastic or metal, which have a certain degree of durability and waterproof performance.
Charging method: Smartwatches usually use wireless charging, which is charged through an induction charging dock. This method is convenient and fast, without the need to plug and unplug cables, while also reducing interface wear and pollution.
Charging interface: The charging interface of the watch charger usually uses a standard USB interface or a dedicated charging interface. The USB interface can be compatible with various power adapters, making it convenient for users to use.
Charging protocol: Different brands and models of watches may use different charging protocols, such as QC, PD, etc. The charging protocol determines the output voltage, current, and charging method parameters of the charger, which need to be matched with the watch device to charge normally.
Charging power: The charging power of a smartwatch is usually small, usually between 5W and 10W. The magnitude of charging power will affect the charging speed and time.
Protection function: Watch chargers usually have protection functions such as overcharge protection, overcurrent protection, short circuit protection, etc., which can ensure the safety and reliability of the charging process.
Indicator light: During the charging process, there is usually an indicator light on the charger to display the charging status. The color and flashing mode of the indicator light can reflect the status and battery level of the charger.