3Kva UPS with 12V 17Av batteries.

[neosez]

I have 3Kva UPS in which it has 6 12V 17Av batteries in it. which give me 10 minutes maximum backup on full load.
What if i would like to increase the backup time,
Can i additionally install car 12V 125Av battery with it?
or additional battery bank with high Av batteries.

Please can anyone guide me whether its feaisable or not.

Thanks

 

[NoTime]

This depends on if the UPS 3Kva rating is continuous or limited to the 10 minutes.

If the UPS documentation says it can run longer, then adding an additional battery bank of high Av batteries is certainly possible.

Plain car batteries are not a good choice for UPS service, you need deep cycle batteries.
Mixing battery types is not a good idea.

 

[oswaler]

I cannot provide specific recommendations for your specific situation without more information. However, I can provide some general information and considerations for increasing the backup time of your UPS system.

First, it is important to understand that the backup time of a UPS system is dependent on the total capacity of the batteries in the system. In your case, you have a total battery capacity of 12V x 17Ah x 6 batteries = 1224Wh. This means that your UPS can provide 1224 watts of power for one hour, or 612 watts for two hours, and so on. Therefore, to increase the backup time, you would need to increase the total battery capacity.

One option could be to add additional batteries with higher Ah (ampere-hour) ratings, as you suggested. However, it is important to note that simply adding more batteries may not necessarily increase the backup time. This is because the UPS system is designed to operate with a specific battery voltage and may not be compatible with different battery types or capacities. Additionally, the UPS system may not be able to properly charge and maintain the new batteries, which could lead to reduced performance and potential damage to the system.

Another option could be to add an external battery bank to your UPS system. This would involve connecting a separate battery system to your UPS, which could potentially increase the total battery capacity and therefore, the backup time. However, this would also require careful consideration of compatibility and proper installation to ensure optimal performance and safety.

In conclusion, increasing the backup time of your UPS system is possible, but it is important to consult with a professional or the manufacturer to ensure compatibility and proper installation. Additionally, it is important to carefully consider the cost and benefits of increasing the backup time, as it may not always be the most practical or cost-effective solution.