1. Basic technical indicators of the battery: ① valve-controlled sealed lead-acid battery: each UPS is connected to a group. ② Floating charge voltage tolerance: 1%. ③ Floating charging voltage: 2.23 ~ 2.27V/ unit. ④ Uniform charging voltage: 2.3 ~ 2.4V/ unit. ⑤ Final discharge voltage: 1.67 ~ 1.70V/ monomer. The effect of temperature on battery life: under the condition of floating charge operation at 25 ° C, the theoretical life is not less than 10 years.

2. Calculation of UPS battery capacity
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2.1 Larger discharge current of the battery I

I = S x COSφ/η x Ei

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Where: S is the nominal output power of UPS power supply;

COSφ is the load power factor, generally 0.8;
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η is the efficiency of the inverter Vida battery generally 0.8;

Ei is the final discharge voltage of the battery.
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2.2, battery backup time t Battery backup time t according to the needs of users, small and medium-sized UPS mostly use valve-controlled lead batteries. The price is more expensive, and the working time of full load is generally selected for 10min, 15min or 30min.

2.3 Battery capacity C After calculating a larger discharge current, calculate the standard battery capacity according to the nature of the load and the backup time of the UPS required by the user: (C = It).