This situation may be caused by two reasons. The user can first check whether the battery connection plug on the rear panel of the UPS power supply is connected. if not you can open the front panel to check if the battery is connected.

　　Case 1: The newly installed UPS power supply cannot start normally.

　　This situation may be caused by two reasons. The user can first check whether the battery connection plug on the rear panel of the UPS power supply is connected. in case

　　If not, you can open the front panel to check if the battery is connected.

　　The second case: The UPS power supply battery has been used for about 2 years and it cannot be started.

　　For most users, this situation is generally due to the fact that the battery capacity will decrease or decrease more or less after the battery has been used for two years.

　　The problem of battery inertia, if the battery can not play the role of delay, users need to consider replacing a new battery to avoid battery generation

　　Inert problem, you can use battery automation management software.

　　The third case: The voltage of a single battery is normal, but the UPS power supply cannot start.

　　Although the voltage of the single battery is normal at this time, it may be caused by some other reasons that the UPS power supply cannot be started.

　　1. It is likely that there is a problem with the connection between the battery and the battery or the connection between the battery and the UPS power supply, such as: the connection point is not firm or

　　The connection point is oxidized, and then it is necessary to remove the oxide and reconnect it.

　　2. It may be that the fuse of the UPS power supply and battery connection is broken. If the fuse is broken, replace the fuse.

　　3. The connection between the UPS power supply and the battery is very long, very thin, or there is a connection point in the middle, so a large voltage drop is generated, causing the UPS power supply to fail to start.