UPS Batteries

UPS batteries for uninterruptible power supply backup systems

UPS batteries are a critical component of any uninterruptible power supply system, delivering instant backup power during utility outages. These batteries store energy and discharge immediately when incoming power is disrupted, allowing connected equipment to continue operating or shut down safely. In environments such as data centers, healthcare facilities, manufacturing plants, and control systems, reliable battery performance is essential for minimizing downtime and protecting sensitive equipment. RSP Supply offers solutions from leading manufacturers such as Panduit and Phoenix Contact, supporting a wide range of industrial and commercial UPS applications.

Most UPS systems utilize sealed lead-acid (SLA) batteries due to their proven reliability and cost-effectiveness, while lithium-ion options are available for applications requiring longer life cycles, lighter weight, or improved energy density. Battery service life typically ranges from three to five years, depending on operating temperature, discharge frequency, and load conditions. Our selection includes individual replacement batteries, battery modules, and battery cartridges, as well as complete battery cartridge sets designed for streamlined maintenance and system compatibility.

Uninterruptible power supplies provide short-term power protection during outages and voltage irregularities. Standby (offline) UPS systems switch to battery power when voltage drops below a preset threshold, while online UPS systems continuously supply power through an inverter, providing seamless transition during disruptions. Additional support components such as external battery packs, battery cabinets, and battery cables help expand runtime capacity and maintain proper system configuration. In both configurations, the battery remains the core energy source that bridges the gap between power loss and generator startup or safe equipment shutdown.

Found 155 items
Normally In Stock
Phoenix Contact 1274117 Battery module UPS-BAT/PB/24DC/4AH
Free U.S Ground shipping
$293.63
$244.69
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Phoenix Contact 1274118 Battery module UPS-BAT/PB/24DC/7AH
Free U.S Ground shipping
$360.29
$300.24
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Phoenix Contact 1274520 Battery module UPS-BAT/PB/24DC/1.2AH
Free U.S Ground shipping
$267.30
$222.75
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Phoenix Contact 2866569 Battery module MINI-BAT/12DC/2.6AH
Free U.S Ground shipping
$329.34
$274.45
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Phoenix Contact 1348516 Battery module UPS-BAT/PB/24DC/20AH
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$700.68
$583.90
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Phoenix Contact 1394730 Battery module TRIO-BAT/PB/24DC/4AH
Free U.S Ground shipping
$296.46
$176.49
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Phoenix Contact 1394727 Battery module TRIO-BAT/PB/24DC/12AH
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$444.69
$264.74
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Phoenix Contact 1460923 Battery module UPS-BAT/LI/24DC/284WH
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$1810.35
$1025.48
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Phoenix Contact 2320416 Battery module UPS-BAT/VRLA-WTR/24DC/13AH
Free U.S Ground shipping
$1180.68
$983.90
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Phoenix Contact 1274119 Battery module UPS-BAT/PB/24DC/12AH
Free U.S Ground shipping
$507.97
$423.31
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Phoenix Contact 1081355 Battery module STEP-BAT/LI-ION/18.5DC/46WH
Free U.S Ground shipping
$259.02
$215.85
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Phoenix Contact 2320539 Capacity module QUINT4-CAP/24DC/5/4KJ
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$581.77
$484.81
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Phoenix Contact 2320571 Capacity module QUINT4-CAP/24DC/10/8KJ
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$681.05
$567.54
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Phoenix Contact 2320380 Energy storage UPS-CAP/24DC/20A/20KJ
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$1742.82
$1452.35
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PULS UZO24-262 DIMENSION Battery Module - 24 VDC
Free U.S Ground shipping
$356.83
$297.36
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Phoenix Contact 1384031 Battery module TRIO-BAT/PB/24DC/7AH
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$355.75
$211.80
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Phoenix Contact 1396415 Battery module UPS-BAT/LI/24DC/128WH
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$1179.04
$982.53
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Phoenix Contact 1354641 Battery module UPS-BAT/PB/24DC/40AH
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$947.57
$789.64
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PULS UZK24-262 Battery module with battery, 24 V, 12 A
Free U.S Ground shipping
$1391.04
$1159.20
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SolaHD™ SDU24EXTBC1B 1' SDU24BATB Battery Cable
Free U.S Ground shipping
$98.57
$82.14
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SolaHD™ SDU24EXTBC6B 6' SDU24BATEM External Battery Cable
Free U.S Ground shipping
$117.05
$97.54
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SolaHD™ SDU24BATB BATT MODULE FOR SDU DC B UPS 24V
Free U.S Ground shipping
$450.88
$375.73
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SolaHD™ S4K36INTBATD Internal Battery Replacement Kit for S4K2U1000D
Free U.S Ground shipping
$2090.09
$1741.74
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SolaHD™ S4K48INTBATD Internal Battery Replacement Kit for S4K2U1500D and S4K2U2000D
Free U.S Ground shipping
$2762.93
$2302.44
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SolaHD™ S4K72INTBATD Internal Battery Replacement Kit for S4K2U3000D
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$4302.55
$3585.46
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Sola S4K2U36BATD S4KD Ext Bat Cab 1000VA
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$4836.22
$4030.18
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Sola S4K2U48BATD S4KD Ext Bat Cab 1500/2000VA
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$5094.55
$4245.46
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Sola S4K2U72BATD S4KD Ext Bat Cab 3000VA
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$7040.10
$5866.75
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Panduit ULC272 UPS Lithium-Ion Replacement Battery Cartridge
Free U.S Ground shipping
$4980.19
$4150.16
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Panduit UVC024 UPS Lead Acid Battery Cartridge
Free U.S Ground shipping
$406.78
$338.98
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Panduit ULC024 UPS Lithium-Ion Replacement Battery Cartridge
Free U.S Ground shipping
$2402.47
$2002.06
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Panduit UVC036 UPS Lead Acid Battery Cartridge
Free U.S Ground shipping
$610.81
$509.01
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Panduit ULC372 UPS Lithium-Ion Replacement Battery Cartridge
Free U.S Ground shipping
$7415.50
$6179.58
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Panduit UVC048 UPS Lead Acid Battery Cartridge
Free U.S Ground shipping
$786.65
$655.54
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Panduit UVC072 UPS Lead Acid Battery Cartridge
Free U.S Ground shipping
$1175.90
$979.92
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Panduit ULC048 UPS Lithium-Ion Replacement Battery Cartridge
Free U.S Ground shipping
$2895.37
$2412.81
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Panduit UVD036 UPS Replacement VRLA Battery Cartridge
Free U.S Ground shipping
$1192.33
$993.61
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Panduit UVD024 UPS Replacement VRLA Battery Cartridge
Free U.S Ground shipping
$784.32
$653.60
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Panduit UVD240 UPS Replacement VRLA Battery Cartridge
Free U.S Ground shipping
$4238.10
$3531.75
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Panduit UVD048 UPS Replacement VRLA Battery Cartridge
Free U.S Ground shipping
$1544.00
$1286.67
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Panduit UVD072 UPS Replacement VRLA Battery Cartridge
Free U.S Ground shipping
$2316.60
$1930.50
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Panduit UVD480 UPS Replacement VRLA Battery Cartridge
Free U.S Ground shipping
$8537.30
$7114.42
Normally In Stock
Panduit UVPL12HCBL External Battery Pack Extension Cable
Free U.S Ground shipping
$916.20
$763.50

FAQs

Q: What does a UPS battery do?
A UPS battery stores electrical energy and delivers it immediately when utility power is lost, allowing connected equipment to continue operating temporarily or shut down safely.

Q: How long do UPS batteries last?
Most UPS batteries have a service life of three to five years. Factors such as temperature, usage patterns, discharge frequency, and overall load can affect battery lifespan.

Q: What types of batteries are used in UPS systems?
Sealed lead-acid batteries are the most common type used in UPS systems. Some applications use lithium-ion batteries for longer service life, reduced weight, and improved energy efficiency.

Q: How do I know when to replace a UPS battery?
Indicators include reduced runtime, battery alarms, swelling, leakage, or system notifications. Routine testing and monitoring help identify declining performance before failure occurs.

Q: What is the difference between standby and online UPS systems?
Standby UPS systems switch to battery power when utility voltage drops outside acceptable limits. Online UPS systems continuously supply power through an inverter, providing seamless operation without switching delays.

Why Buy UPS Batteries from RSP Supply

RSP Supply offers a comprehensive selection of UPS batteries designed for dependable performance in industrial, commercial, and IT environments. Our inventory includes multiple battery chemistries, capacities, and configurations to support a wide range of uninterruptible power supply systems. Customers rely on RSP Supply for knowledgeable support, trusted manufacturers, and reliable components that help maintain continuous power protection for critical operations.