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EATON ELECTRICAL INC. RK2PC 9PX 2POST RAIL KIT
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  • $127.98 
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Eaton 5PXEBM48RT EATON 5PX 48V EXT BATT PACK RK/TWR 2U
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  • $740.74 
  • Free Shipping
APC SYBT5 Symmetra LX Battery Module 12 V DC - Maintenance-free Lead Acid Hot-swappable
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  • $856.31 
  • Free Shipping
CyberPower RB1290X4F UPS Replacement Battery Cartridge, 12V/9Ah
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  • $241.09 
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APC by Schneider Electric Replacement Battery Cartridge #155 (apcrbc155)
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  • $382.68 
  • Free Shipping
BATTERY TECHNOLOGY APCRBC158-SLA158 UPS Battery for BX1000M BX1000M-LM60
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  • $88.45 
  • Free Shipping
Vertiv Liebert PSI5-48VBATTTAA PSI5 UPS 48V External Battery Cabinet TAA 9 Ah Lead-Acid
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  • $999.99 
  • Free Shipping
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Vertiv Liebert GXT5-EBC48VRT2UTAA AA 48V External Battery Cabinet for Liebert GXT5 VRLA UPS - 9 Ah Rack/Tower with TAA-compliant lead-acid batteries for extend backup time | compact 2U size
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Vertiv Liebert GXT5-EBC48VRT2UTAA AA 48V External Battery Cabinet for Liebert GXT5 VRLA UPS - 9 Ah Rack/Tower with TAA-compliant lead-acid batteries for extend backup time | compact 2U size
  • Brand: Vertiv
  • Type: Battery
  • Features: Enhanced local and remote management capabilities enable users to understand the condition of the critical infrastructure space and take action when necessary High power factor operation up to unity provides the highest available power (watt) for use by connected IT equipment, allowing for more connected devices Integrated serial connection for advanced console server integration or direct terminal control of the UPS Energy Star® 2.0 certification with efficiency in online (95%) and Active ECO (98%) modes SNMP network communications with optional Liebert® RDU101 NIC and free Vertiv™ Power Insight Gravity-sensing, color LCD for easy configuration and system diagnosis Scalable power with auto-detection of external battery cabinets
  • Model #: GXT5-EBC48VRT2UTAA
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  • $999.99 
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Vertiv Liebert GXT5-EBC36VRT2UTAA TAA 36V External Battery Cabinet for Liebert GXT5 VRLA UPS - 9 Ah Rack/Tower with TAA-compliant lead-acid batteries for extend backup time | compact 2U size
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Vertiv Liebert GXT5-EBC36VRT2UTAA TAA 36V External Battery Cabinet for Liebert GXT5 VRLA UPS - 9 Ah Rack/Tower with TAA-compliant lead-acid batteries for extend backup time | compact 2U size
  • Brand: Vertiv
  • Type: Battery
  • Features: Enhanced local and remote management capabilities enable users to understand the condition of the critical infrastructure space and take action when necessary High power factor operation up to unity provides the highest available power (watt) for use by connected IT equipment, allowing for more connected devices Integrated serial connection for advanced console server integration or direct terminal control of the UPS Energy Star® 2.0 certification with efficiency in online (95%) and Active ECO (98%) modes SNMP network communications with optional Liebert® RDU101 NIC and free Vertiv™ Power Insight Gravity-sensing, color LCD for easy configuration and system diagnosis Scalable power with auto-detection of external battery cabinets
  • Model #: GXT5-EBC36VRT2UTAA
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  • $940.99 
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CyberPower SNEV001 Environmental Sensor
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CyberPower SNEV001 Environmental Sensor
  • Brand: CyberPower
  • Part Number: SNEV001
  • Type: Module
  • Compatibility: -- Other --
  • Model #: SNEV001
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BTI RBC43-SLA43-TAA 12V 8-Cell Lead Acid UPS Battery  - Replaces RBC43 - TAA-Compliant
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BTI RBC43-SLA43-TAA 12V 8-Cell Lead Acid UPS Battery - Replaces RBC43 - TAA-Compliant
  • Brand: Battery Technology Inc.
  • Model: RBC43-SLA43-TAA
  • Part Number: RBC43-SLA43-TAA
  • Type: Battery
  • Model #: RBC43-SLA43-TAA
Vertiv Liebert Hot-Swap Internal 9 Ah, 48V Lead-Acid Battery for Liebert GXT4 UPS systems from 1500-2000VA GXT4-9A48BATKIT
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Vertiv Liebert Hot-Swap Internal 9 Ah, 48V Lead-Acid Battery for Liebert GXT4 UPS systems from 1500-2000VA GXT4-9A48BATKIT
  • Type: Battery
  • Compatibility: Emerson Liebert UPS: GXT3-1500RT, GXT3-2000RT, GXT4-1500RT, and GXT4-2000RT
  • Model #: GXT4-9A48BATKIT
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CyberPower RB1290X8 Replacement Battery Cartridge, 8 X 12 V / 9 Ah Sealed Lead-Acid Battery
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CyberPower RB1290X8 Replacement Battery Cartridge, 8 X 12 V / 9 Ah Sealed Lead-Acid Battery
  • Brand: CyberPower
  • Type: Battery
  • Compatibility: CyberPower OL8KRTHD, OL10KRTHD
  • Specifications: Battery Battery Quantity: 8 Battery Size: 12 V / 9 Ah Battery Type: Sealed Lead-Acid Battery Output USB Charge Port: No Environmental Operating Relative Humidity: 0 - 90 % (non-condensing) Operating Temperature: 32 - 104 °F (0 - 40 °C)
  • Model #: RB1290X8
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CyberPower APCRBC154-CP Replacement Battery Cartridge
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CyberPower APCRBC154-CP Replacement Battery Cartridge
  • Brand: CyberPower
  • Type: Battery
  • Specifications: Number of batteries: 1 Battery size: 12V/5Ah Battery type: Sealed lead-acid User Replaceable Battery: Yes Operating Relative Humidity: 0 - 90 % Operating Temperature: 32 - 104 °F (0 - 40 °C)
  • Dimensions: 3.98'' x 5.94'' x 1.97''
  • Model #: APCRBC154-CP
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CyberPower APCRBC133-CP Replacement Battery Cartridge
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CyberPower APCRBC133-CP Replacement Battery Cartridge
  • Brand: CyberPower
  • Type: Battery
  • Specifications: Number of batteries: 1 Battery size: 24V/9Ah Battery type: Sealed lead-acid User Replaceable Battery: Yes Operating Relative Humidity: 0 - 90 % Operating Temperature: 32 - 104 °F (0 - 40 °C)
  • Dimensions: 3.09'' x 8.5'' x 13.13''
  • Model #: APCRBC133-CP
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CyberPower APCRBC152-CP Replacement Battery Cartridge
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CyberPower APCRBC152-CP Replacement Battery Cartridge
  • Brand: CyberPower
  • Type: Battery
  • Specifications: Number of batteries: 8 Battery size: 12V/5.5Ah Battery type: Sealed lead-acid User Replaceable Battery: Yes Operating Relative Humidity: 0 - 90 % Operating Temperature: 32 - 104 °F (0 - 40 °C)
  • Dimensions: 3.0'' x 8.375'' x 19.75''
  • Model #: APCRBC152-CP
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CyberPower RBC55-CP Replacement Battery Cartridge
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CyberPower RBC55-CP Replacement Battery Cartridge
  • Brand: CyberPower
  • Type: Battery
  • Specifications: Number of batteries: 2 Battery size: 12V/18Ah Battery type: Sealed lead-acid User Replaceable Battery: Yes Operating Relative Humidity: 0 - 90 % Operating Temperature: 32 - 104 °F (0 - 40 °C)
  • Dimensions: 6.8'' x 7.2'' x 5.6''
  • Model #: RBC55-CP
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CyberPower APCRBC110-CP Replacement Battery Cartridge
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CyberPower APCRBC110-CP Replacement Battery Cartridge
  • Brand: CyberPower
  • Type: Battery
  • Specifications: Number of batteries: 1 Battery size: 12V/7Ah Battery type: Sealed lead-acid User Replaceable Battery: Yes Operating Relative Humidity: 0 - 90 % Operating Temperature: 32 - 104 °F (0 - 40 °C)
  • Dimensions: 3.94'' x 5.94'' x 2.56''
  • Model #: APCRBC110-CP
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CyberPower RBC7-CP Replacement Battery Cartridge
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CyberPower RBC7-CP Replacement Battery Cartridge
  • Brand: CyberPower
  • Type: Battery
  • Specifications: Number of batteries: 2 Battery size: 12V/18Ah Battery type: Sealed lead-acid User Replaceable Battery: Yes Operating Relative Humidity: 0 - 90 % Operating Temperature: 32 - 104 °F (0 - 40 °C)
  • Dimensions: 6.0'' x 6.8'' x 7.2''
  • Model #: RBC7-CP
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CyberPower APCRBC140-CP Replacement Battery Cartridge
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CyberPower APCRBC140-CP Replacement Battery Cartridge
  • Brand: CyberPower
  • Type: Battery
  • Specifications: Number of batteries: 2 Battery size: 192V/5.5Ah Battery type: Sealed lead-acid User Replaceable Battery: Yes Operating Relative Humidity: 0 - 90 % Operating Temperature: 32 - 104 °F (0 - 40 °C)
  • Dimensions: 7.8'' x 4.8'' x 23.5''
  • Model #: APCRBC140-CP
  • $732.60 - $736.28
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CyberPower APCRBC155-CP Replacement Battery Cartridge
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CyberPower APCRBC155-CP Replacement Battery Cartridge
  • Brand: CyberPower
  • Type: Battery
  • Specifications: Number of batteries: 4 Battery size: 12V/9Ah Battery type: Sealed lead-acid User Replaceable Battery: Yes Operating Relative Humidity: 0 - 90 % Operating Temperature: 32 - 104 °F (0 - 40 °C)
  • Dimensions: 3.0'' x 7.25'' x 17.57''
  • Model #: APCRBC155-CP
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CyberPower APCRBC159-CP Replacement Battery Cartridge
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CyberPower APCRBC159-CP Replacement Battery Cartridge
  • Brand: CyberPower
  • Type: Battery
  • Specifications: Number of batteries: 4 Battery size: 12V/9Ah Battery type: Sealed lead-acid User Replaceable Battery: Yes Operating Relative Humidity: 0 - 90 % Operating Temperature: 32 - 104 °F (0 - 40 °C)
  • Dimensions: 3.09'' x 8.5'' x 13.13''
  • Model #: APCRBC159-CP
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CyberPower APCRBC141-CP Replacement Battery Cartridge
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CyberPower APCRBC141-CP Replacement Battery Cartridge
  • Brand: CyberPower
  • Type: Battery
  • Specifications: Number of batteries: 6 Battery size: 12V/5.5Ah Battery type: Sealed lead-acid User Replaceable Battery: Yes Operating Relative Humidity: 0 - 90 % Operating Temperature: 32 - 104 °F (0 - 40 °C)
  • Dimensions: 3.0'' x 8.25'' x 15.75''
  • Model #: APCRBC141-CP
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BTI RBC7-SLA7-TAA 12V 2-Cell Lead Acid UPS Battery For APC SMT1500C, SMT1500CNC, SMT1500CUS, SMT1500X93, SUA1000XLI, RBC7 - TAA
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BTI RBC7-SLA7-TAA 12V 2-Cell Lead Acid UPS Battery For APC SMT1500C, SMT1500CNC, SMT1500CUS, SMT1500X93, SUA1000XLI, RBC7 - TAA
  • Brand: Battery Technology Inc.
  • Model: RBC7-SLA7-TAA
  • Part Number: RBC7-SLA7-TAA
  • Type: Battery
  • Model #: RBC7-SLA7-TAA
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Vertiv Liebert 2POSTRMKIT1U 1U 2-Post Rack Mount Kit for use with 1U PSI5 UPS and 1U GXT5 EBC
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Vertiv Liebert 2POSTRMKIT1U 1U 2-Post Rack Mount Kit for use with 1U PSI5 UPS and 1U GXT5 EBC
  • Type: Rackmount
  • Compatibility: 1U PSI5 UPS and 1U GXT5 EBC
  • Model #: 2POSTRMKIT1U
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BTI RBC92-2U-BTI 12V 2-Cell Lead Acid UPS Battery Replaces RBC92-2U
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BTI RBC92-2U-BTI 12V 2-Cell Lead Acid UPS Battery Replaces RBC92-2U
  • Brand: Battery Technology Inc.
  • Model: RBC92-2U-BTI
  • Part Number: RBC92-2U-BTI
  • Type: Battery
  • Model #:
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Vertiv Liebert PSI5-72VBATT PSI5 UPS 72V External Battery Cabinet 9 Ah Lead-Acid  | 2U | Designed for Vertiv Liebert PSI5-3000RT120 and PSI5-5000RT208
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Vertiv Liebert PSI5-72VBATT PSI5 UPS 72V External Battery Cabinet 9 Ah Lead-Acid | 2U | Designed for Vertiv Liebert PSI5-3000RT120 and PSI5-5000RT208
  • Type: Battery Cabinet
  • Compatibility: Liebert UPS:
    PSI5-2200RT120 PSI5-3000RT120 PSI5-5000RT208
  • Specifications: Output Voltage:72 V DC
  • Model #: PSI5-72VBATT
BTI APCRBC116-TAA 12V 4-Cell Acid UPS Battery For APC SMX750C, SMX750CNC, SMX750CUS, SMX1000C, SMX1000CNC, SMX1000CUS, APCRBC116, RBC116 (TAA-Compliant)
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BTI APCRBC116-TAA 12V 4-Cell Acid UPS Battery For APC SMX750C, SMX750CNC, SMX750CUS, SMX1000C, SMX1000CNC, SMX1000CUS, APCRBC116, RBC116 (TAA-Compliant)
  • Brand: Battery Technology Inc.
  • Model: APCRBC116-TAA
  • Part Number: APCRBC116-TAA
  • Type: Battery
  • Model #: APCRBC116-TAA
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BTI RBC24-SLA24-TAA 12V 4-Cell Lead Acid UPS Battery Replaces RBC24 (TAA-Compliant)
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BTI RBC24-SLA24-TAA 12V 4-Cell Lead Acid UPS Battery Replaces RBC24 (TAA-Compliant)
  • Brand: BTI
  • Part Number: RBC24-SLA24-TAA
  • Type: Battery
  • Compatibility: Model Fits: APC SU1400R2BX120, SU1400R2IBX120, SU1400R2X122, SU1400RM2U, SU1400RM2UX93, SU1400RMI2U, SUA1500R2ICH, SUA1500R2X122, SUA1500R2X138, SUA1500R2X180, SUA1500R2X93, SUA1500RM2U, SUA1500RM2U-BR, SUA1500RM2UTW, SUA1500RMI2U, DLA1500RM2U, ISXT11KEC1R4P, ISXT11KPOW1R2P, ISXT11LD1R230V Replaces OEM: RBC24
  • Model #: RBC24-SLA24-TAA
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BTI APCRBC117-TAA 12V 10-Cell Lead Acid UPS Battery - Replaces APCRBC117 RBC117
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BTI APCRBC117-TAA 12V 10-Cell Lead Acid UPS Battery - Replaces APCRBC117 RBC117
  • Brand: Battery Technology Inc.
  • Model: APCRBC117-TAA
  • Part Number: APCRBC117-TAA
  • Type: Battery
  • Model #: APCRBC117-TAA
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BTI RBC11-SLA11-TAA 12V 4-Cell Lead Acid UPS Battery - Replaces RBC11 - TAA-Compliant
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BTI RBC11-SLA11-TAA 12V 4-Cell Lead Acid UPS Battery - Replaces RBC11 - TAA-Compliant
  • Brand: Battery Technology Inc.
  • Model: RBC11-SLA11-TAA
  • Part Number: RBC11-SLA11-TAA
  • Type: Battery
  • Model #: RBC11-SLA11-TAA
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BTI EBP-1613-BTI 12V 4-Cell Lead Acid UPS Battery - Replaces EBP-1613 744-A3296 744-A3297
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BTI EBP-1613-BTI 12V 4-Cell Lead Acid UPS Battery - Replaces EBP-1613 744-A3296 744-A3297
  • Brand: Battery Technology Inc.
  • Model: EBP-1613-BTI
  • Part Number: EBP-1613-BTI
  • Type: Battery
  • Model #: EBP-1613-BTI
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Eaton Internal Replacement Battery Cartridge (RBC) for Select 8kVA to 11kVA 9PX UPS Systems and EBMs  - EBP-2002
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Eaton Internal Replacement Battery Cartridge (RBC) for Select 8kVA to 11kVA 9PX UPS Systems and EBMs - EBP-2002
  • Brand: EATON
  • Part Number: EBP-2002
  • Compatibility: for Select 8kVA to 11kVA 9PX UPS Systems and EBMs
  • Model #: EBP-2002
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Whether you have a busy data center or web servers that need to be constantly online, UPS accessories help you ensure that your surge protection system is efficient at all times. Make sure to consider the coverage time provided by the UPS power bank, and to have replacement batteries for your UPS system if required.

The UPS Protects Data and Keeps the System Running

UPS stands for “Uninterruptible Power Supply”. This device is essential in mission-critical environments and data centers since it prevents downtime in case of electrical failure. It’s able to provide backup power, allow the computer or server to shut down properly and prevent data loss. Different types of UPS surge protectors are capable of providing backup power for different amounts of time. You can also set them up to alert the server when the battery is running low, so it will shut down correctly before the power source fails. 

Know When It’s Time to Get UPS Replacement Batteries

The battery in your UPS surge protector wears out over time, just like the ones inside your laptop and smartphone. It gradually loses its original capacity. Some UPS models test their batteries regularly to make sure they can offer enough backup power for the right amount of time. Use software to monitor how fast the battery loses capacity, or take note of the time it takes to go off. Luckily, UPS replacement batteries are easy to find and install. As a rule of thumb, you should replace the battery every three or four years.  Most UPS power supplies have a battery slot that's similar to the one on your laptop where you can find the worn-out battery.

UPS Network Management Cards Let You Monitor Your UPS Power Supply Via a Secure Network 

UPS network management cards, like the APC® AP9631 and APC AP9630, add extra functionalities to your UPS surge protector. They allow you to monitor your UPS system via a secure network browser using the IPv6 protocol. They use device encryption to connect via HTTPS/SSL, SSH and SNMPv3. These UPS accessories also notify you when a problem occurs, so you’ll be able to prevent downtime or data losses. Network management cards offer data and event logs to help you identify problems in advance.

External Battery Packs Extend the Uptime of Your UPS Surge Protector

Some UPS models can work with external batteries to offer even more protection from electrical failure. They work similarly to the power banks you use for your smartphone, as they extend the runtime of the UPS power supply after the battery inside has died. Most external battery packs come with a cord, which goes into a dedicated connector. Some models, like the Tripp Lite® BP72V18-2US, have daisy-chain connectors to add multiple battery packs to the same UPS surge protector. Many external UPS batteries have unique designs that allow you to stack them in racks and create a tidy set up in a data center. Browse Newegg to find all of the available power supplies today.

Bestselling UPS Accessories Reviews:

Chris M.
8/30/2025 6:26:54 AM
It had over an 80% charge when it arrived

“ Changing these batteries out is a PIA because of the number of things that are plugged into the UPS. ”

CyberPower RB1270X2A UPS Replacement Battery Cartridge 12V 7AH
Anonymous
7/25/2025 3:45:05 AM
Perfect replacement

“ You can't buy generic batteries for my UPS, I think due to the proprietary connector they use. ”

APC by Schneider Electric Replacement Battery Cartridge #161 APCRBC161
Thomas D.
3/21/2025 6:30:08 AM
Solved My Problem

“ This happened about 3 times before I suspected my UPS. ”

PowerStar--Replacement UB1290 12V 9Ah APC UPS Computer Back Up Power Battery - 2 Pack
David C.
1/25/2025 3:39:13 PM
Perfect replacement

“ According to the UPS, estimate time with the same setup seems to indicate more time than with the original battery. ”

APC by Schneider Electric Replacement Battery Cartridge #161 APCRBC161
Joseph D.
1/11/2025 9:22:25 AM
Prompt delivery, perfect fit!

“ Looking forward to a few years of trouble-free UPS-ing. ”

APC by Schneider Electric Replacement Battery Cartridge #161 APCRBC161
Gary R.
12/1/2024 5:06:45 PM
Much better than my do-it-yourself solution

“ Battery pack fits into the UPS easily. ”

CyberPower RB1290X4F Battery Kit
David M.
6/21/2024 7:49:36 AM
Great product

“ Unfortunately the day after I ordered the battery we had a power surge and POP the UPS system is dead. ”

APC UPS Battery Replacement for APC UPS Models BR1500G, BR1300G, BX1500M, BX1500G, SMC1000-2U, SMC1000-2UC, BR1500GI, SMC1000-2U, SMC1000-2UC and select others (APCRBC124)
Jake J.
6/19/2024 10:34:35 PM
Keeping my Beloved APC going...

“ HDD failures before using an uninterrupted power supply unit: 3 ”

APC UPS Battery Replacement for APC UPS Model BR1000G, BX1350M, BN1350G, BR900GI, BX1000G, BX1300G, SMT750RM2U, SMT750RM2UC, SMT750RM2UNC, and select others (APCRBC123)