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BTI RBC59-SLA59-BTI Replacement Battery #59 For Apc - Ups Battery - 1 X Lead Acid - For Apc Smart-Ups Sc 1500Va
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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
Liebert Battery Cabinet
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Liebert Battery Cabinet
  • Type: Battery Cabinet
  • Compatibility: Liebert PSI5-1500RT120 UPS
  • Specifications: Output Voltage:48 V DC
  • Model #: PSI5-48VBATT
American Battery RBC22 UPS Accessories
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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
Liebert Battery Kit PSI5-800BATKIT
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Liebert Battery Kit PSI5-800BATKIT
  • Series: Battery Kit
  • Type: Battery
  • Model #: PSI5-800BATKIT
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 #:
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 UPS Replacement Battery Cartridge
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BTI UPS Replacement Battery Cartridge
  • Type: Battery Unit
  • Weight: 10 lb
  • Parts: 18 Month
  • Model #: APCRBC132-SLA132
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 
  • Free Shipping
Vertiv Liebert PSI5 UPS 48V External Battery Cabinet 9Ah PSI548VBATTTAA
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  • $860.46 - $864.78
Eaton 24V DC DIN Rail Extended Battery Module (EBM) for Select DC Industrial UPS Systems - 24 V DC - Lead Acid - Valve-regulated  BPDIN24XL
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Eaton 24V DC DIN Rail Extended Battery Module (EBM) for Select DC Industrial UPS Systems - 24 V DC - Lead Acid - Valve-regulated BPDIN24XL
  • Brand: EATON
  • Part Number: BPDIN24XL
  • Type: Extended Battery
  • Compatibility: Compatible with expandable DIN24240DC and DIN24480DC UPS systems
  • Model #: BPDIN24XL
Vertiv Liebert Hot-Swap Internal 9 Ah, 144V Lead-Acid Battery for Liebert GXT4-5000RT208 and GXT4-6000RT208 UPS Systems GXT4-144VBATKIT
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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
  • $1,159.63 - $1,165.46
APC 3 Pole 4 Wire Power Distribution Module
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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
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
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
Total Micro Technology 6-cell 91whr Battery For Dell 451-BBSD-TM
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  •  
  • $116.77 
  • Free Shipping
APC UPS Battery Module
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APC UPS Battery Module
  • Model #: SYBTU2-PLP
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
BTI Replacement UPS Battery For APC RBC25
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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
CyberPower BP36VL2U02 Extended Battery Modules
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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
Total Micro 4Cell 56Whr 15.2V Li-Ion Battery
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BTI Battery Unit 12 V DC Lead Acid Sealed APCRBC114-SLA114
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BTI Battery Unit 12 V DC Lead Acid Sealed APCRBC114-SLA114
  • Brand: Battery Technology Inc.
  • Type: Battery
  • Model #:
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
American Battery RBC27 UPS Replacement Battery for APC
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American Battery RBC27 UPS Replacement Battery for APC
  • Type: Battery Unit
  • Monitor: Monitor not included
  • Screen Size: 32"
  • Weight: 49.1500
  • Model #: RBC27
Eaton UPS Battery Pack
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Eaton UPS Battery Pack
  • Type: UPS Battery Pack
  • Compatibility: Eaton UPS:
    PW91301500 PW9130i1500T-XL
  • Specifications: Output Voltage:48 V DC
  • Model #: EBP-1603
BTI Battery Unit
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BTI Battery Unit
  • Type: Battery Unit
  • Compatibility: APC SMT1500RM2U UPS
  • Model #: SLA133-BTI
APCRBC143-TAA RBC SLA BATTERY TAA-COMPLIANT REPLACES APCRBC143
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  •  
  • $548.27 
  • Free Shipping
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:

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)