What is the battery type of the Xiaomi Electric Shaver S200?

The Xiaomi Electric Shaver S200 uses a Li-ion battery.
For your reference, here are more details about the Li-ion battery:
1. The Li-ion (Lithium-ion) battery is a type of rechargeable battery that uses lithium ions to move between the positive and negative electrodes during charging and discharging cycles;
2. Li-ion batteries have a higher energy density compared to other types, meaning they can store more energy in a smaller, lighter package, making them ideal for portable devices;
3. Li-ion batteries have a longer cycle life (more charge-discharge cycles) than other rechargeable batteries like NiMH or NiCd, which means they last longer;
4. Li-ion batteries can charge faster, allowing devices to reach full power more quickly compared to other battery types;
5. Unlike older battery technologies, Li-ion batteries do not suffer from the memory effect, which means they do not lose capacity when recharged before being fully discharged.