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 38 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
Free U.S Ground shipping
$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
Free U.S Ground shipping
$444.69
$264.74
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Phoenix Contact 1460923 Battery module UPS-BAT/LI/24DC/284WH
Free U.S Ground shipping
$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
Free U.S Ground shipping
$581.77
$484.81
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Phoenix Contact 2320571 Capacity module QUINT4-CAP/24DC/10/8KJ
Free U.S Ground shipping
$681.05
$567.54
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Phoenix Contact 2320380 Energy storage UPS-CAP/24DC/20A/20KJ
Free U.S Ground shipping
$1742.82
$1452.35
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Phoenix Contact 1384031 Battery module TRIO-BAT/PB/24DC/7AH
Free U.S Ground shipping
$355.75
$211.80
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Phoenix Contact 1396415 Battery module UPS-BAT/LI/24DC/128WH
Free U.S Ground shipping
$1179.04
$982.53
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Phoenix Contact 1354641 Battery module UPS-BAT/PB/24DC/40AH
Free U.S Ground shipping
$947.57
$789.64
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Phoenix Contact 1474660 Battery module UPS-BAT/PB/24DC/110AH
Free U.S Ground shipping
$3261.06
$1941.46
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Phoenix Contact 1133819 Battery module QUINT-HP-BAT/PB/48DC/7.0AH/PT
Free U.S Ground shipping
$691.20
$436.70
Normally In Stock
Phoenix Contact 1460921 Battery module UPS-BAT/LI/24DC/64WH
Free U.S Ground shipping
$614.25
$347.94
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Phoenix Contact 1460922 Battery module UPS-BAT/LI/24DC/189WH
Free U.S Ground shipping
$1267.65
$718.06
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Phoenix Contact 1147739 Battery/accumulator BL2 BPC 1500 RTC BATTERY
Free U.S Ground shipping
$36.68
$28.36
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Phoenix Contact 2320393 Buffer module QUINT-BUFFER/24DC/24DC/40
Free U.S Ground shipping
$686.33
$571.94
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Phoenix Contact 2907913 Buffer module QUINT4-BUFFER/24DC/20
Free U.S Ground shipping
$322.97
$269.14
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Phoenix Contact 2866666 Battery module MINI-BAT/24DC/0.8AH
Free U.S Ground shipping
$258.43
$215.36
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Phoenix Contact 2866572 Battery module MINI-BAT/12DC/1.6AH
Free U.S Ground shipping
$242.86
$202.38
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Phoenix Contact 2320429 Battery module UPS-BAT/VRLA-WTR/24DC/26AH
Free U.S Ground shipping
$1716.55
$1430.46
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Phoenix Contact 2320377 Energy storage UPS-CAP/24DC/10A/10KJ
Free U.S Ground shipping
$1115.39
$929.49
Normally In Stock
Phoenix Contact 2320526 Capacity module QUINT4-CAP/24DC/3.8/1KJ/PT
Free U.S Ground shipping
$453.67
$378.06
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Phoenix Contact 2908283 Buffer module QUINT4-BUFFER/24DC/40
Free U.S Ground shipping
$436.61
$363.84
Normally In Stock
Phoenix Contact 1394729 Battery module TRIO-BAT/PB/24DC/1.2AH
Free U.S Ground shipping
$237.17
$141.19

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.