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CyberPower RB12120X2B Battery Pack for PR1000LCD, 18-Mo WTY
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CyberPower RB12120X2B Battery Pack for PR1000LCD, 18-Mo WTY
  • Type: UPS Battery Pack
  • Compatibility: CyberPower PR1000LCD UPS
  • Specifications: Output Voltage:12 V DC
  • Weight: 17.40 lb
  • Model #: RB12120X2B
Vertiv Liebert POD PD5 - (2) NEMA L6-20R| (2) NEMA 5-15/20R| UPS Maintenance Bypass for GXT5 (PD5-002)
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Vertiv Liebert POD PD5 - (2) NEMA L6-20R| (2) NEMA 5-15/20R| UPS Maintenance Bypass for GXT5 (PD5-002)
  • Type: Module
  • Specifications: Output: two (2) NEMA L6-20R, two (2) NEMA 5-15/20R Input: NEMA L14-30P
  • Model #: PD5-002
  •  
  • $798.99 –
BTI APCRBC163-SLA163 Sealed Lead Acid Battery For APC Back-UPS
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BTI APCRBC163-SLA163 Sealed Lead Acid Battery For APC Back-UPS
  • Brand: Battery Technology Inc.
  • Type: Battery
  • Model #: APCRBC163-SLA163
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
Eaton UPS Battery Module
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Eaton UPS Battery Module
  • Type: Battery Unit
  • Compatibility: Powerware UPS: 9170 9170+
  • Model #: ASY0529
Eaton Internal Replacement Battery Cartridge (RBC) for 5P750R and 5P850GR 5P UPS Systems - TAA - EBP-0808
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Eaton Internal Replacement Battery Cartridge (RBC) for 5P750R and 5P850GR 5P UPS Systems - TAA - EBP-0808
  • Brand: EATON
  • Part Number: EBP-0808
  • Compatibility: for 5P750R and 5P850GR 5P UPS Systems
  • Model #: EBP-0808
BTI APCRBC124-TAA 12V 2-CELL LEAD ACID UPS BATTERY REPLACES APCRBC124 RBC124 TAA-Compliant 2 YR WARRANTY APCRBC124TAA
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  •  
  • $117.23 –
  • $115.23 - $117.23
Liebert Battery Kit to Vertiv Liebert Battery Kit
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Liebert Battery Kit to Vertiv Liebert Battery Kit
  • Type: Battery Kit
  • Compatibility: Liebert PSI5 UPS
  • Model #: PSI5-1100BATKIT
APC SRT008 Smart-UPS SRT 8kVA/10kVA PDU, 208V (6) L6-30
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APC SRT008 Smart-UPS SRT 8kVA/10kVA PDU, 208V (6) L6-30
  • Type: Other
  • Specifications: Output Connections: (6) NEMA L6-30R
  • Dimensions: 3.71" x 5.31" x 11.72" (H x W x D)
  • Weight: 4.80 lbs.
  • Model #: SRT008
GTS Replacement battery for APCRBC140 RBC44 - APCRBC140-GTS
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GTS Replacement battery for APCRBC140 RBC44 - APCRBC140-GTS
  • Brand: Global Technology Systems, Inc
  • Type: Battery
  • Model #:
APC Smart-UPS SMX120BP X 120 V External Battery Pack - 1200 VAh - Black
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  •  
  • $775.49 –
  • Free Shipping
BTI Replacement UPS Battery For APC RBC22
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BTI Replacement UPS Battery For APC RBC22
  • Type: Battery
  • Compatibility: UPS BATTERY FOR SU700RM2U, SUA750RM2U
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: SLA22-BTI
BTI SLA18-BTI UPS Replacement Battery Cartridge
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BTI SLA18-BTI UPS Replacement Battery Cartridge
  • Type: Battery
  • Compatibility: APC UPS: PS250 PS250I PS450
  • Parts: Manufacturers Limited Warranty: 18 Month / Parts Only
  • Model #: SLA18-BTI
APC SMX120RMBP2U 120V External Battery Pack Rack/Tower, for SMX3000 SMX2000 & SMX2200 models
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Refurbished APC SMX120RMBP2U 120V External Battery Pack Rack/Tower, for SMX3000 SMX2000 & SMX2200 models
  • Brand: APC
  • Series: Smart-UPS
  • Type: Battery
  • Compatibility: SMX2000RMLV2U, SMX2200RMHV2U, SMX2200RMLV2U, SMX3000RMHV2U, SMX3000RMHV2UNC, SMX3000RMLV2U, SMX3000RMLV2UNC
  • Model #: SMX120RMBP2U
  •  
  • $799.00 –
  • Free Shipping
ABC RBC123 UPS Repacement Battery for APC
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ABC RBC123 UPS Repacement Battery for APC
  • Type: UPS Battery Pack
  • Compatibility: APC UPS:
    BN1250G BR1000G BR1000G-FR BR1000G-IN BR1000GI BX1000G BX1300G-CA BX1300G BX1300G-CA BX1500G BX1500G-CA SMT750RM2U SMT750RM2UTW SMT750RMI2U
  • Specifications: Output Voltage:12 V DC
  • Weight: 10.8
  • Model #: RBC123
  •  
  • $104.42 –
  • $88.00 - $104.42
APC Battery Unit
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APC Battery Unit
  • Brand: Battery Technology Inc.
  • Model #:
  • $37.06 - $40.06
Total Micro 4Cell 56Whr 15.2V Li-Ion Battery
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BTI 744-A1974-BTI 12V 15-CELL SEALED LEAD ACID BATTERY FOR 744-A1974 2 YR WARRANTY 744A1974BTI
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  •  
  • $545.39 –
  • $541.89 - $545.39
EATON 103005894 Powerware Rack Monitor Water Leak Detector
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EATON 103005894 Powerware Rack Monitor Water Leak Detector
  • Type: Liquid Leak Sensor
  • Model #: 103005894
  • $288.38 - $289.13
BTI Battery Unit
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BTI Battery Unit
  • Type: Battery Unit
  • Compatibility: APC SMT1500RM2U UPS
  • Model #: SLA133-BTI
  • $245.37 - $248.87
GTS Replacement battery for APCRBC157 - APCRBC157-GTS
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  • $223.35 - $226.60
EATON 9PX 4-Post Rail Kit
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EATON 9PX 4-Post Rail Kit
  • Type: Rackmount
  • Weight: 4.5000
  • Model #: 9RK#
DITEK DTK-120HW
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DITEK DTK-120HW
  • Model #: 782980500243

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 Replacement Battery & Accessories Reviews:

NoStall
7/25/2026 10:05:48 AM
As Usual, great deal

“ I would recommend this to others needing to replace their UPS battery. ”

APC by Schneider Electric Replacement Battery Cartridge #161 APCRBC161
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)