Battery Replacement 

5 reasons:
always use genuine ONEAC/POWERVAR
replacement batteries

Use of non-ONEAC/POWERVAR batteries may result in lower run time, damage the UPS, create a hazardous condition, or void UL, CSA, and other safety certifications on the UPS.

ONEAC/POWERVAR recycles used batteries and most of the battery lead content is reused, protecting the environment. With each purchase of a genuine ONEAC/POWERVAR replacement battery, you get free freight to return your old batteries (USA only).

ONEAC/POWERVAR provides a 1 year warranty on each replacement battery.

ONEAC/POWERVAR supplies customers with the appropriate instructions for your UPS, along with any required wires and connectors. 

Any use of "knock-off" batteries can result in nullifying your warranty.