RadioLink Electronic Ltd
4
2. Functions
(1) Low-power precharge: When it is detected that the voltage of a single cell of the battery is
lower than 3.0V, a small current is used to activate the battery to restore the battery
capacity.
(2) Fast charge: When it is detected that the voltage of a single cell of the battery is higher than
3.0V and lower than 4.16V, 1.5A is used to charge the battery.
(3) Trickle charging: When it is detected that the voltage of a single cell of the battery is higher
than 4.16V, 0.8A is used to charge the battery to make the battery fully charged and avoid
overcharging.
(4) Temperature control: When it is detected that the board temperature is higher than 75
degrees Celsius, the charging current will be reduced to 2/3 of the predetermined current to
lower the board temperature, and when it is detected that the board temperature is lower
than 70 degrees Celsius, predetermined current will be restored to charge the battery.
(5) Power supply protection: When it is detected that the power supply voltage drops to 3.7V,
the current current is set to a predetermined current to adapt to various charging heads of
different specifications.
(6) Balance charging: When the battery voltage is charged to 4.16V, if it is detected that the
voltages of the two batteries are not equal, the balance charging is turned on to ensure that
the battery voltages are consistent.
(7) Charging alarm: When there is no current detected for a long time, charging will be
automatically stopped, and the red LED will flash to indicate abnormality.
(8) Charging time: About 40 minutes for a 500mAH 2S battery.
(9) Voltage precision: The full voltage is 4.20V±0.02V.
(10) Charging efficiency: Higher than 82%.
