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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

Sigmas SP12-9HR, SP 12-9HR 12V 9Ah UPS Replacement Battery AJC-D9S-M-0-125178 $18.89 Sold out
$40.99
$20.39

Sigmas SP12-9HR, SP 12-9HR 12V 9Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-9HR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Volt...

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$40.99
$20.39
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Sigmas SP12-5.5HR 12V 5Ah UPS Replacement Battery AJC-D5S-M-0-132771 $11.99
$25.99
$13.29

Sigmas SP12-5.5HR 12V 5Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-5.5HR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Vo...

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$25.99
$13.29
Sigmas SP6-7, SP 6-7 6V 7Ah UPS Replacement Battery AJC-C7S-M-0-125800 $7.99
$16.99
$9.39

Sigmas SP6-7, SP 6-7 6V 7Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP6-7 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 6V (6 Volts) Ca...

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$16.99
$9.39
Sigmas SP12-12HR, SP 12-12HR 12V 12Ah UPS Replacement Battery AJC-D12S-M-0-124803 $24.99
$51.99
$25.89

Sigmas SP12-12HR, SP 12-12HR 12V 12Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-12HR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Vol...

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$51.99
$25.89
Sigmas SP12-35, SP 12-35 12V 35Ah UPS Replacement Battery AJC-D35S-M-0-125279 $69.99
$141.99
$76.89

Sigmas SP12-35, SP 12-35 12V 35Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-35 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Volts...

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$141.99
$76.89
Sigmas SP12-18HR, SP 12-18HR 12V 18Ah UPS Replacement Battery AJC-D18S-M-0-124804 $36.79
$72.99
$34.59

Sigmas SP12-18HR, SP 12-18HR 12V 18Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-18HR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Vol...

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$72.99
$34.59
Sigmas SP12-22HR SP 12-22HR 12V 22Ah UPS Replacement Battery
$97.99
$46.39

Sigmas SP12-22HR SP 12-22HR 12V 22Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-22HR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Vol...

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$97.99
$46.39
SigmasTek SPX12-350FR 12V 8Ah UPS Replacement Battery
$35.99
$18.19

SigmasTek SPX12-350FR 12V 8Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SPX12-350FR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 V...

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$35.99
$18.19
SigmasTek SPX12-300FR 12V 8Ah UPS Replacement Battery
$35.99
$18.19

SigmasTek SPX12-300FR 12V 8Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SPX12-300FR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 V...

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$35.99
$18.19
SigmasTek SPX12-500FR 12V 8Ah UPS Replacement Battery
$35.99
$18.19

SigmasTek SPX12-500FR 12V 8Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SPX12-500FR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 V...

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$35.99
$18.19
Sigmas SP12-7HR, SP 12-7HR 12V 8Ah UPS Replacement Battery AJC-D8S-M-0-125177 $16.69
$35.99
$18.19

Sigmas SP12-7HR, SP 12-7HR 12V 8Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-7HR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Volt...

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$35.99
$18.19
Sigmas SP6-12HR, SP 6-12HR 6V 12Ah UPS Replacement Battery AJC-C12S-M-0-125179 $12.59
$25.99
$13.29

Sigmas SP6-12HR, SP 6-12HR 6V 12Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP6-12HR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 6V (6 Volts)...

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$25.99
$13.29
Sigmas SP12-7.5HR, SP 12-7.5HR 12V 8Ah UPS Replacement Battery AJC-D8S-M-0-124686 $16.69
$35.99
$18.19

Sigmas SP12-7.5HR, SP 12-7.5HR 12V 8Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-7.5HR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Vo...

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$35.99
$18.19
Sigmas SP12-55, SP 12-55 12V 55Ah UPS Replacement Battery AJC-D55S-M-0-125282 $119.99
$230.99
$118.89

Sigmas SP12-55, SP 12-55 12V 55Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-55 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Volts...

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$230.99
$118.89
Sigmas SP12-5.5HR 12V 4.5Ah UPS Replacement Battery AJC-D4.5S-M-0-125988 $10.99
$22.99
$11.59

Sigmas SP12-5.5HR 12V 4.5Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-5.5HR UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Vo...

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$22.99
$11.59
Sigmas SP12-28, SP 12-28 12V 26Ah UPS Replacement Battery AJC-D26S-M-0-125278 $59.99
$117.99
$55.89

Sigmas SP12-28, SP 12-28 12V 26Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-28 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Volts...

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$117.99
$55.89
Sigmas SP12-3.5 12V 3.2Ah UPS Replacement Battery AJC-D3.4S-M-0-125987 $11.89
$22.99
$11.79

Sigmas SP12-3.5 12V 3.2Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-3.5 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Volt...

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$22.99
$11.79
Sigmas SP12-26, SP 12-26 12V 26Ah UPS Replacement Battery AJC-D26S-M-0-125277 $59.99
$117.99
$55.89

Sigmas SP12-26, SP 12-26 12V 26Ah UPS Replacement Battery

AJC® replacement compatible with SigmasTek SP12-26 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (12 Volts...

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$117.99
$55.89