2, the second method, the battery is connected in series, the charging hole is also connected. The negative terminals of the battery pack are connected together and then connected to the negative controller wire. The positive terminals of the battery pack are respectively connected to the air switch connector holes 1 and 2, and the other end of the air switch is connected to the positive terminal line of the controller with a wire. Which air switch to turn on when in use, and which battery to use. Turn off the air switch when charging, each charge its own.
The battery group of the tricycle can be divided into two groups according to the series connection or parallel. When connected in series, the positive and negative electrodes of the two batteries are connected, and the output voltage is increased to the sum of the voltage of the two batteries, and can be used to drive high-voltage equipment such as vehicle motors.
When the two batteries are connected in parallel, the positive ends of the two batteries are also connected, and doubling the current of the two batteries can increase the available time of the battery group or the output power of the motor. When charging, it is necessary to ensure that the charger matching the battery group is used, and the connection and charging are carried out in strict accordance with the charger instructions to avoid overcharging or over-discharging the battery group.
Electric tricycle with two groups of batteries, you can install a reverse brake, a group at one end, the middle contact is connected with the electric key, so that you can run out of power and move to the other end to use another group of batteries.