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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

Best Power LI 12V 10Ah UPS Replacement Battery AJC-D10S-F-2-154711 $21.59
$45.99
$22.89

Best Power LI 12V 10Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power LI 12V 10Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (1...

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$45.99
$22.89
Best Power Powerware 9355 EBC 72 12V 9Ah UPS Replacement Battery AJC-D9S-T-432-161090 $18.89
$40.99
$20.39

Best Power Powerware 9355 EBC 72 12V 9Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Powerware 9355 EBC 72 12V 9Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precise...

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$40.99
$20.39
Best Power Patriot 280 12V 7Ah UPS Replacement Battery AJC-D7S-A-1-112472 $14.29
$28.99
$14.69

Best Power Patriot 280 12V 7Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Patriot 280 12V 7Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage...

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$28.99
$14.69
Best Power LI 12V 12Ah UPS Replacement Battery AJC-D12S-F-2-104241 $24.99
$51.99
$25.89

Best Power LI 12V 12Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power LI 12V 12Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 12V (1...

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$51.99
$25.89
Best Power LI 1050-3 12V 9Ah UPS Replacement Battery AJC-D9S-X-3-117021 $18.89
$40.99
$20.39

Best Power LI 1050-3 12V 9Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power LI 1050-3 12V 9Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: ...

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$40.99
$20.39
Best Power Ferrups FE5.3KVA, FE 5.3KVA 12V 75Ah UPS Replacement Battery AJC-D75S-M-4-123875 $149.99
$300.99
$154.59

Best Power Ferrups FE5.3KVA, FE 5.3KVA 12V 75Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Ferrups FE5.3KVA 12V 75Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely V...

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$300.99
$154.59
Best Power FC 7.5KVA BAT-0103 12V 75Ah UPS Replacement Battery AJC-D75S-A-10-111608 $144.99
$287.99
$148.39

Best Power FC 7.5KVA BAT-0103 12V 75Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power FC 7.5KVA BAT-0103 12V 75Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely...

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$287.99
$148.39
Best Power Micro-FERRUPS FE1.4KVA 12V 22Ah UPS Replacement Battery
$97.99
$46.39

Best Power Micro-FERRUPS FE1.4KVA 12V 22Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Micro-FERRUPS FE1.4KVA 12V 22Ah UPS Battery Exact OEM replacement guaranteed to fit easily and preci...

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$97.99
$46.39
Best Power Ferrups FES850VA FES 850VA 12V 22Ah UPS Replacement Battery
$97.99
$46.39

Best Power Ferrups FES850VA FES 850VA 12V 22Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Ferrups FES850VA 12V 22Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely V...

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$97.99
$46.39
Best Power Ferrups FE2.1KVA FE 2.1KVA 12V 22Ah UPS Replacement Battery
$97.99
$46.39

Best Power Ferrups FE2.1KVA FE 2.1KVA 12V 22Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Ferrups FE2.1KVA 12V 22Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely V...

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$97.99
$46.39
Best Power FE 2.1KVA BAT-0058 12V 22Ah UPS Replacement Battery
$97.99
$46.39

Best Power FE 2.1KVA BAT-0058 12V 22Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power FE 2.1KVA BAT-0058 12V 22Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely...

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$97.99
$46.39
Best Power Ferrups FE1.8KVA FE 1.8KVA 12V 22Ah UPS Replacement Battery
$97.99
$46.39

Best Power Ferrups FE1.8KVA FE 1.8KVA 12V 22Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Ferrups FE1.8KVA FE 1.8KVA 12V 22Ah UPS Battery Exact OEM replacement guaranteed to fit easily and p...

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$97.99
$46.39
Best Power LI1420VA B 12V 22Ah UPS Replacement Battery
$97.99
$46.39

Best Power LI1420VA B 12V 22Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power LI1420VA B 12V 22Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage...

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$97.99
$46.39
Best Power BAT0058 12V 22Ah UPS Replacement Battery
$97.99
$46.39

Best Power BAT0058 12V 22Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power BAT0058 12V 22Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: 1...

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$97.99
$46.39
Best Power Unity UT8K 12V 9Ah UPS Replacement Battery
$40.99
$20.39

Best Power Unity UT8K 12V 9Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Unity UT8K 12V 9Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage:...

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$40.99
$20.39
Best Power Unity UT4K 12V 9Ah UPS Replacement Battery
$40.99
$20.39

Best Power Unity UT4K 12V 9Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Unity UT4K 12V 9Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage:...

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$40.99
$20.39
Best Power Pro 1000 12V 75Ah UPS Replacement Battery
$300.99
$154.59

Best Power Pro 1000 12V 75Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Pro 1000 12V 75Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage: ...

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$300.99
$154.59
Best Power Unity UT5K 12V 9Ah UPS Replacement Battery
$40.99
$20.39

Best Power Unity UT5K 12V 9Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Unity UT5K 12V 9Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltage:...

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$40.99
$20.39
Best Power Fortress Telecom 2250 12V 35Ah UPS Replacement Battery
$141.99
$76.89

Best Power Fortress Telecom 2250 12V 35Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Fortress Telecom 2250 12V 35Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precis...

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$141.99
$76.89
Best Power Fortress Telecom 1800 12V 35Ah UPS Replacement Battery
$141.99
$76.89

Best Power Fortress Telecom 1800 12V 35Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Fortress Telecom 1800 12V 35Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precis...

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$141.99
$76.89
Best Power Fortress 1K 12V 35Ah UPS Replacement Battery
$141.99
$76.89

Best Power Fortress 1K 12V 35Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Fortress 1K 12V 35Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Voltag...

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$141.99
$76.89
Best Power Fortress 1050 12V 35Ah UPS Replacement Battery
$141.99
$76.89

Best Power Fortress 1050 12V 35Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power Fortress 1050 12V 35Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Volt...

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$141.99
$76.89
Best Power FERRUPS FES-850 12V 35Ah UPS Replacement Battery
$141.99
$76.89

Best Power FERRUPS FES-850 12V 35Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power FERRUPS FES-850 12V 35Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Vo...

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$141.99
$76.89
Best Power FERRUPS FES-1.15K 12V 35Ah UPS Replacement Battery
$141.99
$76.89

Best Power FERRUPS FES-1.15K 12V 35Ah UPS Replacement Battery

AJC® replacement compatible with a Best Power FERRUPS FES-1.15K 12V 35Ah UPS Battery Exact OEM replacement guaranteed to fit easily and precisely ...

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$141.99
$76.89