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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 below

MK Replacement Battery ES9-12, ES 9-12 12V 9Ah UPS Replacement Battery AJC-D9S-M-0-125141 $20.49
$40.99
$20.39

MK Replacement Battery ES9-12, ES 9-12 12V 9Ah UPS Replacement Battery

AJC® replacement compatible with a MK ES9-12 12V 9Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Vol...

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$40.99
$20.39
MK ES12-12, ES 12-12 12V 12Ah UPS Replacement Battery AJC-D12S-M-0-122733 $24.99
$51.99
$25.89

MK ES12-12, ES 12-12 12V 12Ah UPS Replacement Battery

AJC® replacement compatible with a MK ES12-12 12V 12Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 V...

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$51.99
$25.89
MK ES7-6, ES 7-6 6V 7Ah UPS Replacement Battery AJC-C7S-M-0-126065 $7.99
$16.99
$9.39

MK ES7-6, ES 7-6 6V 7Ah UPS Replacement Battery

AJC® replacement compatible with a MK ES7-6 6V 7Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 6V (6 Volts) ...

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$16.99
$9.39
MK ES3-12, ES 3-12 12V 3.2Ah UPS Replacement Battery AJC-D3.4S-M-0-125723 $11.89
$22.99
$11.79

MK ES3-12, ES 3-12 12V 3.2Ah UPS Replacement Battery

AJC® replacement compatible with a MK ES3-12 12V 3.2Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 V...

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$22.99
$11.79
MK M50-12 SLD M 12V 50Ah UPS Battery
$304.79
$152.39

MK M50-12 SLD M 12V 50Ah UPS Replacement Battery

This is an UPG® Brand replacement compatible with MK UPS Batteries Terminal: L2 Volts: 12V (12 Volt) Ah: 50Ah (50000mAh) 12v 50ah UB12500 repla...

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$304.79
$152.39
MK M17-12 SLD M 12V 18Ah UPS Replacement Battery AJC-D18S-M-0-126041 $36.79
$72.99
$34.59

MK M17-12 SLD M 12V 18Ah UPS Replacement Battery

AJC® replacement compatible with a MK M17-12 SLD M 12V 18Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V ...

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$72.99
$34.59
MK ES17-12, ES 17-12 12V 18Ah UPS Replacement Battery AJC-D18S-M-0-122734 $36.79
$72.99
$34.59

MK ES17-12, ES 17-12 12V 18Ah UPS Replacement Battery

AJC® replacement compatible with a MK ES17-12 12V 18Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 V...

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$72.99
$34.59
MK ES12-12, ES 12-12 12V 10Ah UPS Replacement Battery AJC-D10S-M-0-155134 $21.59
$45.99
$22.89

MK ES12-12, ES 12-12 12V 10Ah UPS Replacement Battery

AJC® replacement compatible with a MK ES12-12 12V 10Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 V...

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$45.99
$22.89
MK M17-12 SLD M 12V 22Ah UPS Replacement Battery
$97.99
$46.39

MK M17-12 SLD M 12V 22Ah UPS Replacement Battery

AJC® replacement compatible with a MK M17-12 SLD M 12V 22Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V ...

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$97.99
$46.39
MK ES17-12 ES 17-12 12V 22Ah UPS Replacement Battery
$97.99
$46.39

MK ES17-12 ES 17-12 12V 22Ah UPS Replacement Battery

AJC® replacement compatible with a MK ES17-12 12V 22Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 V...

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$97.99
$46.39
MK M22SLDA 12V 55Ah UPS Replacement Battery AJC-D55S-M-0-126199 $119.99
$230.99
$118.89

MK M22SLDA 12V 55Ah UPS Replacement Battery

AJC® replacement compatible with a MK M22SLDA 12V 55Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 V...

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$230.99
$118.89
MK M22NF SLD A 12V 55Ah UPS Replacement Battery AJC-D55S-M-0-126097 $119.99
$230.99
$118.89

MK M22NF SLD A 12V 55Ah UPS Replacement Battery

AJC® replacement compatible with a MK M22NF SLD A 12V 55Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (...

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$230.99
$118.89
MK M12260 SLD M 12V 26Ah UPS Replacement Battery AJC-D26S-M-0-126040 $59.99
$117.99
$55.89

MK M12260 SLD M 12V 26Ah UPS Replacement Battery

AJC® replacement compatible with a MK M12260 SLD M 12V 26Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V ...

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$117.99
$55.89
MK ES7-12 12V 8Ah UPS Replacement Battery AJC-D8S-M-0-126186 $16.69
$35.99
$18.19

MK ES7-12 12V 8Ah UPS Replacement Battery

AJC® replacement compatible with a MK ES7-12 F2 12V 8Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 ...

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$35.99
$18.19
MK ES33-12, ES 33-12 12V 35Ah UPS Replacement Battery AJC-D35S-M-0-125663 $69.99
$141.99
$76.89

MK ES33-12, ES 33-12 12V 35Ah UPS Replacement Battery

AJC® replacement compatible with a MK ES33-12 12V 35Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 V...

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$141.99
$76.89
MK ES26-12, ES 26-12 12V 26Ah UPS Replacement Battery AJC-D26S-M-0-125662 $59.99
$117.99
$55.89

MK ES26-12, ES 26-12 12V 26Ah UPS Replacement Battery

AJC® replacement compatible with a MK ES26-12 12V 26Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 V...

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$117.99
$55.89
MK ES12-6 6V 12Ah UPS Replacement Battery AJC-C12S-M-0-126185 $12.59
$25.99
$13.29

MK ES12-6 6V 12Ah UPS Replacement Battery

AJC® replacement compatible with a MK ES12-6 F2 6V 12Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 6V (6 Vo...

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$25.99
$13.29
MK Replacement Battery MU-1 SLD A 12V 35Ah UPS Replacement Battery AJC-D35S-M-0-125624 $69.99
$141.99
$76.89

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

AJC® replacement compatible with a MK MU-1 SLD A 12V 35Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (1...

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$141.99
$76.89

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