Skip to main content
Take a tax holiday. Take advantage of limited-time, tax-free savings on select products in certain states. Learn More>
  • In Stock
  • Sold by Newegg
  • Make an Offer
  • New
Brands
Show More
Price
Show More
Sold by
All Top Brands
Availability
Condition
Discount
Useful Links
Show More
Customer Ratings
  • Your Backup Plan
  • NVIDIA AI SUPERCOMPUTE
  • Server System Configurator Tool
  • Architects of Continuity
  • APC Stay Connected
  • Your Best Defense
Sort By:
View:
BTI APCRBC117-TAA 12V 10-Cell Lead Acid UPS Battery - Replaces APCRBC117 RBC117
Quick View
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
BTI RBC51-SLA51-BTI SEALED LEAD ACID BATTERY FOR APC
Quick View
BTI RBC51-SLA51-BTI SEALED LEAD ACID BATTERY FOR APC
  • Brand: Battery Technology Inc.
  • Type: Battery
  • Model #:
BTI SLA12-BTI UPS BATTERY
Quick View
BTI SLA12-BTI UPS BATTERY
  • Type: Battery
  • Compatibility: UPS BATTERY FOR SU2200RM3U, SU2200RMI3U, SU3000RM3U, SU3000RMI3U,SU3000RMT3U, SU5000RMT5U, SU5000RMT5UXFMR, SU5000RMTXFMR, SU5000T,SU5000TXFMR, DL2200RM3U, DL2200RMI3U, DL3000RM3U, DL3000RMI3U,NS2200RM3U, NS22000RMI3U, NS3000RMT3U
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: SLA12-BTI
BTI UPS Replacement Battery Cartridge
Quick View
BTI UPS Replacement Battery Cartridge
  • Type: Battery Unit
  • Compatibility: APC SU1400RMXL3U UPS
  • Parts: 18 Month
  • Model #: RBC25-SLA25-BTI
TRIPP LITE RBC2A UPS Replacement Battery Cartridge
Quick View
TRIPP LITE RBC2A UPS Replacement Battery Cartridge
  • Type: Battery
  • Compatibility: Compatible with many brands and models, including APC models BK200, BK250B, BK280B, BP280, BP280PNP, BP280C, BP280S, BK300, BK350, BK400, BK400B, BP420, BP420C, BP420PNP, BP420S, BK500M, PCPER, PCPRO, SUVS420, SU420NET, BP350UC, BP500CLR, BP500UC
  • Dimensions: 6" x 7.5" x 12"
  • Weight: 5.5 lbs.
  • Model #: RBC2A
Vertiv Liebert Hot-Swap Internal 48V, 5 Ah Lead-Acid Battery for Liebert GXT4 UPS Systems from 500-1000VA GXT4-5A48BATKIT
Quick View
Vertiv Liebert Hot-Swap Internal 48V, 5 Ah Lead-Acid Battery for Liebert GXT4 UPS Systems from 500-1000VA GXT4-5A48BATKIT
  • Type: UPS Battery Pack
  • Compatibility: Emerson Liebert UPS: GXT3-500RT, GXT3-7000RT, GXT3-1000RT, GXT4-500RT, GXT4-700RT, and GXT4-1000RT, 120V and 230V UPS systems
  • Model #: GXT4-5A48BATKIT
Vertiv Liebert Rack Mount Brackets - 4U Shelf Support | GXT5 UPS 5/6 8/10kVA 4UTELECOMRKIT
Quick View
Vertiv Liebert Rack Mount Brackets - 4U Shelf Support | GXT5 UPS 5/6 8/10kVA 4UTELECOMRKIT
  • Mount Style: Mounting Bracket
  • Feature: Product Type: Mounting Bracket Device Supported: Flat Panel Display Compatibility: Monitor
  • Model #: 4UTELECOMRKIT
BTI Replacement Battery Cartridge
Quick View
BTI Replacement Battery Cartridge
  • Type: Battery
  • Compatibility: APC BE500 Replace oem number(s): RBC46
  • Specifications: Volts: 12V Cells: 1 Amps: 5.5A Chemistry: Sealed Lead Acid
  • Parts: 18 Month Limited
  • Model #: RBC46-SLA46-BTI
  •  
  • $53.43 
  • Free Shipping
Eaton Battery Unit
Quick View
Eaton Battery Unit
  • Type: Battery Unit
  • Compatibility: Eaton UPS:
    9PX700RT 9PX1000RT
  • Model #: 744-A3960
BTI RBC59-SLA59-BTI Replacement Battery #59 For Apc - Ups Battery - 1 X Lead Acid - For Apc Smart-Ups Sc 1500Va
Quick View
BTI RBC59-SLA59-BTI Replacement Battery #59 For Apc - Ups Battery - 1 X Lead Acid - For Apc Smart-Ups Sc 1500Va
  • Type: Battery
  • Specifications: Volts: 12 V Cells: 4 Amps: 7.2 A Chemistry: Sealed Lead Acid
  • Model #: RBC59-SLA59-BTI
American Battery RBC22 UPS Accessories
Quick View
American Battery RBC22 UPS Accessories
  • Type: Battery
  • Compatibility: SU700RM2U, SU700R2BX120, SUA750RM2U
  • Specifications: 12 Volts, 7.5 Amp-Hours Tab Size: 0.25 Expected Battery Life: 3-5 Years Connectors and Fuse Included Volt-Amp-Hour Capacity: 48 Hours Meets or exceeds the original ups battery manufacturers specifications
  • Dimensions: 5.94" x 2.56" x 3.66"
  • Model #: RBC-22
Eaton UPS Battery Module
Quick View
Eaton UPS Battery Module
  • Type: Battery Unit
  • Compatibility: Powerware UPS: 9170 9170+
  • Model #: ASY0529
ABC RBC 8 Battery
Quick View
ABC RBC 8 Battery
  • Type: Battery
  • Compatibility: SU1400RM, SU1400RMNET, SU1400RMBX120, SU1400RMX176, SU1400RMX93, SU1400RMBX135, SU1400RMX106
  • Specifications: 4 Batteries: 12 Volts, 7 Amp-Hours Tab Size: 0.25
  • Dimensions: 3.27" x 10.24" x 5.94" (H x W x D)
  • Model #: RBC8
  •  
  • $131.69 
APC 3 Pole 4 Wire Power Distribution Module
Quick View
APC 3 Pole 4 Wire Power Distribution Module
  • Type: Module
  • Specifications: Output Nominal Output Voltage: 208V 3PH Output Connections: 1 x IEC 309 60A (3P+PE) (Battery Backup) Input Nominal Input Voltage: 208V 3PH Input frequency: 60 Hz Acceptable Input Voltage: 200 - 240VAC Maximum Line Current: 60A Approvals: UL; RoHS Compliant
  • Dimensions: 5.00" x 17.50" x 16.00"
  • Weight: 9.40 lbs.
  • Model #: PDM3460IEC309-380
BTI APCRBC163-SLA163 Sealed Lead Acid Battery For APC Back-UPS
Quick View
BTI APCRBC163-SLA163 Sealed Lead Acid Battery For APC Back-UPS
  • Brand: Battery Technology Inc.
  • Type: Battery
  • Model #:
Vertiv Liebert Hot-Swap Internal 9 Ah, 144V Lead-Acid Battery for Liebert GXT4-5000RT208 and GXT4-6000RT208 UPS Systems GXT4-144VBATKIT
Quick View
Vertiv Liebert Hot-Swap Internal 9 Ah, 144V Lead-Acid Battery for Liebert GXT4-5000RT208 and GXT4-6000RT208 UPS Systems GXT4-144VBATKIT
  • Type: UPS Battery Pack
  • Compatibility: Emerson Libert UPS: GXT4-5000RT208 GXT4-6000RT208
  • Weight: 75.80 lbs.
  • Model #: GXT4-144VBATKIT
  • $1,153.71 - $1,165.36
CyberPower RB12120X2B Battery Pack for PR1000LCD, 18-Mo WTY
Quick View
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
Total Micro Technology 6-cell 91whr Battery For Dell 451-BBSD-TM
Quick View
  •  
  • $116.88 
  • Free Shipping
CyberPower BP36VL2U02 Extended Battery Modules
Quick View
CyberPower BP36VL2U02 Extended Battery Modules
  • Brand: CyberPower
  • Type: Battery
  • Compatibility: Models: OL1K5RM, OL2K2RM UPS Models: OL1K5RM OL2K2RM
  • Specifications: General Amperage: 60 A DC Voltage: 36 VDC Battery Battery Quantity: 6 Battery Size: 12 V / 7 Ah Battery Type: Sealed Lead-Acid Battery Built-in Charger: Yes Expansion Ready (Daisy-Chain): Yes Replacement Battery Cartridge: RB1270X3C Replacement Battery Cartridge Quantity: 2 Typical Recharge Time: 4 Hours (0% to 90% charged) User Replaceable Battery: Yes Input Circuit Breaker: 10 A Input Plug Type: NEMA 5-15P Input Voltage Range: 100 VAC - 125 VAC Nominal Input Voltage: 120 VAC Physical Color: Silver Material of Construction: Metal Mounting Hardware: Yes Rack Height: 2U
  • Model #: BP36VL2U02
  •  
  • $1,049.95 
  • Free Shipping
BTI Replacement UPS Battery For APC RBC25
Quick View
BTI Replacement UPS Battery For APC RBC25
  • Type: Battery
  • Compatibility: UPS BATTERY FOR SU1400RMXL3U
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: SLA25-BTI
BTI SLA18-BTI UPS Replacement Battery Cartridge
Quick View
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
ABC RBC123 UPS Repacement Battery for APC
Quick View
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
  • $90.67 - $99.88
Total Micro Battery WDX0RTM
Quick View
BTI Battery Unit 12 V DC Lead Acid Sealed APCRBC114-SLA114
Quick View
BTI Battery Unit 12 V DC Lead Acid Sealed APCRBC114-SLA114
  • Brand: Battery Technology Inc.
  • Type: Battery
  • Model #:
APC SRT008 Smart-UPS SRT 8kVA/10kVA PDU, 208V (6) L6-30
Quick View
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
Eaton UPS Battery Pack
Quick View
Eaton UPS Battery Pack
  • Type: UPS Battery Pack
  • Compatibility: Eaton UPS:
    PW91301500 PW9130i1500T-XL
  • Specifications: Output Voltage:48 V DC
  • Model #: EBP-1603
Total Micro 9-Cell 97Wh Li-Ion Battery XV2VV-TM
Quick View
Liebert Battery Cabinet
Quick View
Liebert Battery Cabinet
  • Type: Battery Cabinet
  • Compatibility: Liebert PSI5-1500RT120 UPS
  • Specifications: Output Voltage:48 V DC
  • Model #: PSI5-48VBATT
APC Smart-UPS SMX120BP X 120 V External Battery Pack - 1200 VAh - Black
Quick View
  •  
  • $857.49 
  • Free Shipping

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:

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)