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UPS Batteries

UPS is short for “uninterruptible power supply.” It is designed for use with various electronics, especially computers and telecom systems, where a power outage could potentially be catastrophic. Browse our selection of UPS replacement batteries from some of the top UPS brands below.

Fortress Best Power UT8K 12V 75Ah UPS Replacement Battery
$147.99

Fortress Best Power UT8K 12V 75Ah UPS Replacement Battery

Info AJC® replacement compatible with Fortress Best Power UT8K UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance...

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$147.99
Fortress Best Power BAT-0063 6V 10Ah UPS Replacement Battery
$13.49

Fortress Best Power BAT-0063 6V 10Ah UPS Replacement Battery

Info AJC® replacement compatible with Fortress Best Power BAT-0063 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Mainten...

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$13.49
Fortress Best Power BAT-0065 12V 35Ah UPS Replacement Battery
$70.89

Fortress Best Power BAT-0065 12V 35Ah UPS Replacement Battery

Info AJC® replacement compatible with Fortress Best Power BAT-0065 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Mainten...

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$70.89
Fortress Best Power Blackout Buster 12V 7Ah UPS Replacement Battery
$15.29

Fortress Best Power Blackout Buster 12V 7Ah UPS Replacement Battery

Info AJC® replacement compatible with Fortress Best Power Blackout Buster UPS Battery Exact OEM replacement guaranteed to fit easily and precisely ...

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$15.29
Fortress Best Power BA-41 (BAT-53) 12V 35Ah UPS Replacement Battery
$70.89

Fortress Best Power BA-41 (BAT-53) 12V 35Ah UPS Replacement Battery

Info AJC® replacement compatible with Fortress Best Power BA-41 (BAT-53) UPS Battery Exact OEM replacement guaranteed to fit easily and precisely M...

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$70.89

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