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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.

MK ES3-12 12V 3.2Ah UPS Replacement Battery
$13.69

MK ES3-12 12V 3.2Ah UPS Replacement Battery

Info AJC® replacement compatible with MK ES3-12 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM techn...

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$13.69
MK ES12-12 12V 12Ah UPS Replacement Battery
$24.99

MK ES12-12 12V 12Ah UPS Replacement Battery

Info AJC® replacement compatible with MK ES12-12 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM tech...

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$24.99
MK ES9-12 12V 9Ah UPS Replacement Battery
$21.29

MK ES9-12 12V 9Ah UPS Replacement Battery

Info AJC® replacement compatible with MK ES9-12 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM techn...

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$21.29
MK ES12-12 12V 10Ah UPS Replacement Battery
$25.29

MK ES12-12 12V 10Ah UPS Replacement Battery

Info AJC® replacement compatible with MK ES12-12 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM tech...

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$25.29
MK M12260 SLD M 12V 26Ah UPS Replacement Battery
$56.39

MK M12260 SLD M 12V 26Ah UPS Replacement Battery

Info AJC® replacement compatible with MK M12260 SLD M UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

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$56.39
MK ES17-12 12V 18Ah UPS Replacement Battery
$37.39

MK ES17-12 12V 18Ah UPS Replacement Battery

Info AJC® replacement compatible with MK ES17-12 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM tech...

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$37.39
MK ES7-6 6V 7Ah UPS Replacement Battery
$9.49

MK ES7-6 6V 7Ah UPS Replacement Battery

Info AJC® replacement compatible with MK ES7-6 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM techno...

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$9.49
MK MU-1 SLD A 12V 35Ah UPS Replacement Battery
$71.49

MK MU-1 SLD A 12V 35Ah UPS Replacement Battery

Info AJC® replacement compatible with MK MU-1 SLD A UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM t...

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$71.49
MK M22NF SLD A 12V 55Ah UPS Replacement Battery
$113.99

MK M22NF SLD A 12V 55Ah UPS Replacement Battery

Info AJC® replacement compatible with MK M22NF SLD A UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM ...

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$113.99