Why does the battery of my Dongfeng water-cooled Big Sheep motorcycle keep running out of power? Even after I replaced it with a new one, I removed the battery while idling and the two cables came together.

Even after replacing the battery, it often runs out of power. It should not be a battery fault. A multimeter should be used to check the charging status and whether there is any discharge. When measuring the charging status, do not remove the battery. Start the engine and increase the accelerator. Use the DC setting of a multimeter to measure the voltage at both ends of the battery and it should be above 14 volts. Otherwise, the charge capacity is insufficient. You should focus on checking the power generation of the rectifier and magneto. Remove the battery, turn off the key, and use a multimeter to measure that there should be no continuity between the two battery wires. If there is continuity, there is leakage in the circuit, which should be checked and eliminated one by one.