When disassembling the female electric bicycle battery, be sure to take it off together with the battery box, place it on the workbench, and remove the locking screw. Carefully open the battery box, use a 50W soldering iron to heat the battery cable from the battery terminals, and immediately wrap the battery terminals with insulating tape to prevent short-circuit accidents; when soldering the wires between the batteries, you can solder them. One head, hold the joint, and then weld the other joint. After welding, the wire will be placed in the specified place immediately to prevent the connection from shorting the battery.
Some female electric bicycle batteries use adhesives and the like to attach the battery to the battery case during installation, and it is necessary to pull the battery to remove it. If the operation is difficult, the battery may be slightly heated, or the adhesive may be dissolved with a solvent such as alcohol, and then the battery may be taken out. Finally, the residual gasket or adhesive should be removed and the new battery should be installed.
At the same time, it is necessary to check the quality of all wiring inside the female electric bicycle, and check the safety seat, charging socket, and battery outlet line contact is normal and reliable, and tighten all the connectors. If it needs to be replaced, it should be replaced, and the reliability should be checked. If it is unreliable, it will be replaced.
Then install according to the instructions in the new battery box. In fact, most of the batteries inside the battery box are connected in series. Connect each battery with a soldering iron with a wire of not less than one square. Together, the last two output terminals - the positive and negative poles - are soldered to the two sections of the output socket. Be careful not to reverse the connection, and must correspond to the positive and negative poles on the charger. Finally, use a multimeter to measure the voltage of the battery output port. The actual voltage of the battery should be slightly higher than the standard voltage by 2~5V. Normally, it can be put into normal operation.http://www.sinskivehicle.com/