Samsung Watch Gear S3 S4 S2 Wireless Charger Desk

The output parameters marked on the charger (referring to line charging), such as output 5.0V/1A, output 5.0V/1500mA-11200, refer to the relevant parameters of the internal voltage stabilizing power supply. By understanding this principle, you will know that a high-quality mobile phone charger can easily be replaced by a high-quality voltage regulator.
The charger for lithium-ion batteries commonly used in mobile phones adopts a constant current and voltage limiting charging system, with a charging current generally around C2, which is a two-hour charging rate. For example, a 500mAh battery can be charged at 250mA for about two hours to reach 4. Charge at a constant voltage after 2V.
Lion batteries are not suitable for using the - DV/DT detection fast charging method used in NIMH advanced fast chargers, as lion batteries have strict limits on charging current. Lithium ions (Li+) are very active, and high current charging can easily cause danger.