In the application of UPS and batteries, people should understand some precautions. The following editor will explain in detail why different old and new UPS batteries cannot be mixed.

⒈Why can’t old and new UPS batteries of different batches be used together?

Because different batches, models, and new and old UPS batteries have different internal resistances, such UPS batteries have differences in charging and discharging. When used together, one battery will be overcharged or undercharged and the current will be different, which will affect the entire UPS. normal operation of the power supply system.

Neither in series nor in parallel.

1. Discharging: For batteries with different capacities, when discharging, one of them will be discharged first, while the other one still has a higher voltage.

2. The battery is dead: the lifespan is shortened by 80%, or even damaged.

3. Charging: When charging batteries with different capacities, one of them will be fully charged first, while the other is still at a lower voltage. At this time, the charger will continue to charge, and there is a risk of overcharging the fully charged battery.

4. Battery overcharge: It will break the chemical balance, and with the electrolysis of water, it will also damage the battery.

⒉What is the floating charge voltage of the UPS battery?

First of all, floating charge is a charging mode of UPS battery, that is, when the battery is fully charged, the charger will still provide a constant voltage and current to balance the natural discharge of the battery itself and ensure that the battery can be fully charged for a long time. The voltage in this case is called float voltage.

⒊.What kind of environment should the UPS battery be installed in?

⑴The ventilation is good, the equipment is clean, and the vents are free of obstacles. Make sure that there is at least 1000 mm wide channel at the front of the equipment for easy access, and at least 400 mm of space above the cabinet for easy ventilation.

⑵The device and the surrounding ground are clean, tidy, free of debris and not prone to dust.

⑶There should be no corrosive or acidic gas around the device.

⑷ The indoor lighting is sufficient, the insulating mat is complete and good, the necessary safety appliances and fire-fighting equipment are complete, and the location is correct.

⑸The temperature of the air entering the UPS should not exceed 35°C.

⑹ The screens and cabinets should be clean and free of dust and sundries. It is strictly forbidden to store flammable and explosive items.

⑺There is no conductive and explosive dust, no corrosive and insulating gas.

⑧There is no strong vibration and shock at the place of use.