Ochranný obvod LiIon 11,1V 12A .

This protection board uses three series lithium electric IC for three series electric tools. IR imported ultra-low internal resistance MOS, with smaller heating, and the resistance capacitance adopts Samsung capacitor, which are all materials of large brands and first-line manufacturers, so it can achieve greater protection current and better impact resistance.
The protective plate has the following characteristics:
1) Built in high precision voltage detection circuit;
(2) The terminals connecting the charger shall be high voltage resistant devices;
(3) Built in three-stage protection detection circuit (over charge voltage protection, over discharge voltage protection, short circuit of load);
(4) The charge and discharge of the battery can be controlled by MOS tube;
(5) Wide operating temperature range: 40 ° C to + 85 ° C;
(6) Low consumption current.

Description of welding point:
·B + is connected to the positive pole of the battery;
·B - connected to the negative electrode of the battery;
· B1 3.7V
· B2 7.4V
·MB / B1 is connected to the connection point before battery 1 and battery 2;
·P + is connected to the positive pole of charge / discharge end (shared by charge end / discharge end);
·P-connected to the negative pole of charge / discharge end (shared by charge end / discharge end).

1) Please pay attention to the use conditions of input and output voltage and load current, so that the power consumption in the protection board does not exceed the allowable power consumption in the specification.
(2) It is possible that the battery cannot be discharged when it is connected. In this case, connect the charger to return to the normal working state.
(3) It is impossible to charge and discharge when overcharged and overdischarged batteries are mixed together.
(4) Although the protection board has built-in anti-static protection circuit, please do not apply excessive static electricity to the protection board that exceeds the performance of the protection circuit.