The Best Power Ferrups FE 500VA to 18kVA ups systems were manufactured until Best was merged with Powerware in 1999. Power Pros still offers expert tech support and battery replacements on this entire product line. These units were custom built depending on the way it was ordered, so to provide you the correct batteries, please call us with your model # and serial # so we can pull the original build sheets. If you have any questions or need to get a quote on replacement batteries, please call 1-888-330-2538.
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