Testing Instruments: Multimeter, inverter, load
Procedure
- After unpacking and receiving the battery, use a multimeter to measure it first. The voltage is 13.2V when leaving the factory, and generally the voltage is around 13V when receiving. (If the voltage is displayed below 11V, there is a certain problem with the battery.)
- Connect the inverter, first connect the negative pole, then connect the positive pole (there will be sparks when connected, which is a normal phenomenon), and then turn on the inverter switch. If the battery can operate normally, the inverter will start (the display light will be on).
- Download Bluetooth and connect it (Bluetooth can only be connected when the battery is turned on, usually in sleep mode.) Afterthat, you can see all the data of the battery. If there is a digital display of the current, it indicates that the charging is normal.
- Connect the load and you can see on your phone that the output current is negative, indicating normal discharge.
The video: https://www.youtube.com/shorts/2HpWCYyKs-U
The above are the simple inspection steps. If you find any problems with your battery, please contact us promptly. We are 24-hour service.