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Emerson-Liebert GXT4 2000 UPS (GXT4-2000RT120) -  Compatible Replacement Battery Kit
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Emerson-Liebert GXT4 2000 UPS (GXT4-2000RT120) - Compatible Replacement Battery Kit
  • Series: Liebert GXT4 Batteries
  • Type: Kit/Package
  • Weight: 28
  • Model #: LEB-GXT4-2000RT120
  •  
  • $87.99 
  • $45.00 Shipping
APC BY SCHNEIDER ELECTRIC AP9625 APC SMARTUPS/SMARTUPS RT TWO POST RAIL KIT
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APC BY SCHNEIDER ELECTRIC AP9625 APC SMARTUPS/SMARTUPS RT TWO POST RAIL KIT
  • Type: Kit
  • Dimensions: 3.50" x 2.00" x 10.50" (H x W x D)
  • Weight: 3.00 lbs.
  • Parts: 2 years limited
  • Model #: AP9625
SLA Battery for APC SUA1500RM2U - Powerwarehouse replacement RBC24 Catridge #24 Maintenance-Free Lead Acid Battery
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  •  
  • $185.00 
  • Free Shipping
CyberPower RB1290X6A UPS Replacement Battery Cartridge for OL2.2-3KVA, 18 Month Warranty
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CyberPower RB1290X6A UPS Replacement Battery Cartridge for OL2.2-3KVA, 18 Month Warranty
  • Type: UPS Battery Pack
  • Compatibility: CyberPower UPS:
    OL2200RTXL2U OL3000RTXL2U OL3000RTXL2UHV
  • Specifications: Output Voltage:12 V DC
  • Weight: 35.20 lb
  • Model #: RB1290X6A
Apc By Schneider Electric Replacement Battery Cartridge #154
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Apc By Schneider Electric Replacement Battery Cartridge #154
  • Brand: APC
  • Model: APCRBC154
  • Type: Battery
  • Specifications: Battery type: sealed_lead_acid, Battery charge time: , Runtime: , Voltage: 12 volts, Wattage: 360 watts, Amperage: 5.5 amps, Output voltage: 120 volts of alternating current, Output wattage: watts, Total power outlets: 7, Item weight: , Item dimensions: 6.9" x 3.5" x 8.4", Cable length:
  • Model #: ADIB0721JF5C1
RefurbUPS CP1500PFCLCD -  Compatible Replacement Battery Kit
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RefurbUPS CP1500PFCLCD - Compatible Replacement Battery Kit
  • Series: CyberPower PFC Batteries
  • Type: Kit/Package
  • Weight: 14
  • Model #: CYB-CP1500PFCLCD
  •  
  • $43.99 
  • $29.00 Shipping
TRIPP LITE RBC93-2U 2U UPS Replacement Battery Cartridge for select Tripp Lite SmartPro UPS
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TRIPP LITE RBC93-2U 2U UPS Replacement Battery Cartridge for select Tripp Lite SmartPro UPS
  • Type: Battery
  • Compatibility: COMPATIBLE WITH TRIPP LITE MODELS SMART1500RM2U, SMX1500RM2U, SMART1500RMXL2Ua ("a" suffix version only)
  • Specifications: DC System Voltage (VDC): 36 Included Battery Set: 3 pre-assembled 12V batteries
  • Dimensions: 2.75" x 10.25" x 8.00" (H x W x D)
  • Model #: RBC93-2U
  •  
  • $271.99 
  • Free Shipping
TRIPP LITE RBC51 UPS Replacement Battery Cartridge
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TRIPP LITE RBC51 UPS Replacement Battery Cartridge
  • Type: Battery
  • Compatibility: Compatible with a variety of UPS brands
  • Specifications: Relative Humidity: 0 - 95% non-condensing Operating Elevation(ft.): 0 - 10,000 Storage Elevation (ft.): 0 - 50,000 Operating Elevation (m): 0 - 3000 m Storage Elevation (m): 0 - 15,200 m
  • Dimensions: 3.69" x 5.88" x 2.50"
  • Model #: RBC51
CyberPower RB0670X2 UPS Replacement Battery Cartridge
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CyberPower RB0670X2 UPS Replacement Battery Cartridge
  • Type: Battery Unit
  • Compatibility: CyberPower OR500LCDRM1U UPS
  • Specifications: Battery Life:26297.44 Hour to 43829.06 Hour Output Voltage:6 V DC
  • Weight: 5.80 lb
  • Model #: RB0670X2
  • $73.89 - $84.38
PowerStar® APC Back UPS XS 900 900VA BX900R Battery Pack
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PowerStar® APC Back UPS XS 900 900VA BX900R Battery Pack
  • Parts: 2 Year Warranty
  • Model #: PS12-9-2PACK2
  •  
  • $59.99 
  • Free Shipping
Eaton 5PX G2 Extended Battery Module (EBM), 2U, Used with 5PX2000RTG2, 5PX2000RTNG2, 5PX2200HRTG2, 5PX3000RTG2, 5PX3000RTNG2, 5PX3000HRTG2, 5PX3000HRTNG2
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Eaton 5PX G2 Extended Battery Module (EBM), 2U, Used with 5PX2000RTG2, 5PX2000RTNG2, 5PX2200HRTG2, 5PX3000RTG2, 5PX3000RTNG2, 5PX3000HRTG2, 5PX3000HRTNG2
  • Type: Battery Enclosure
  • Compatibility: 5PX2000RTG2, 5PX2000RTNG2, 5PX2200HRTG2, 5PX3000RTG2, 5PX3000RTNG2, 5PX3000HRTG2, 5PX3000HRTNG2
  • Specifications: Battery Type: Sealed, lead-acid Topology: Line-interactive
  • Dimensions: 3.40" x 17.20" x 23.70"
  • Model #: 5PXEBM72RTG2
APC AP9631 UPS Network Management Card 2 with Environmental Monitoring
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Refurbished APC AP9631 UPS Network Management Card 2 with Environmental Monitoring
  • Series: Smart-UPS
  • Compatibility: All Smart-UPS
  • Weight: 1LB
  • Package Contents: Comes With No Other Accessories (No Serial Cable, Temperature Sensor(AP9335T) or Manuals)
  • Model #: AP9631-REF-NO-PROB
Hi-Capacity Equivalent of APC RBC21 Battery -
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Hi-Capacity Equivalent of APC RBC21 Battery -
  • Parts: 2 Year Warranty
  • Model #: HZS12-5-11
  •  
  • $23.88 
  • Free Shipping
APC External Battery Pack for Smart-UPS Extended Run SMX-Series (up to 1500 VA), 48V, 2U Rackmount/Tower Convertible (SMX48RMBP2U)
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APC External Battery Pack for Smart-UPS Extended Run SMX-Series (up to 1500 VA), 48V, 2U Rackmount/Tower Convertible (SMX48RMBP2U)
  • Type: External Battery Pack Rack
  • Specifications: Battoutvolt: 48 Nominal Input Voltage: 48V DC Battery Volt-Amp-Hour Capacity: 864 Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof Battery mounting: Enclosed battery cartridge Expected Battery Life (years): 3 - 5 RBC Quantity: 2
  • Weight: 75.95
  • Package Contents: 90249L
  • Model #: SMX48RMBP2U
APC SYBT5 Symmetra LX Battery Module
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APC SYBT5 Symmetra LX Battery Module
  • Type: Battery
  • Specifications: Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof RBC Quantity: 1
  • Dimensions: 5.50" x 8.25" x 21.50" (H x W x D)
  • Weight: 64.00 lbs.
  • Model #: SYBT5
GE Caddx NetworX NX-8 V2 -  Compatible Replacement Battery
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GE Caddx NetworX NX-8 V2 - Compatible Replacement Battery
  • Series: Alarm Batteries
  • Type: Kit/Package
  • Weight: 6
  • Model #: ALM-GE-Caddx NX-8 V2
  •  
  • $17.99 
  • $19.40 Shipping
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
  • $1,105.60 - $1,134.88
2 Pack - 12V 9AH FOR 7AH UPS Battery for APC Back-UPS APC Back-UPS RS 800VA
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  •  
  • $59.99 
  • Free Shipping
APC UPS Battery Replacement, APCRBC158, for APC UPS Model BX1000M
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APC UPS Battery Replacement, APCRBC158, for APC UPS Model BX1000M
  • Brand: APC
  • Part Number: APCRBC158
  • Type: Battery
  • Compatibility: APCRBC158, APC
  • Model #: APCRBC158
APC APCRBC154 Replacement Battery Cartridge #154
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APC APCRBC154 Replacement Battery Cartridge #154
  • Type: Battery
  • Specifications: Battery type: Lead-acid battery Battery mounting: Enclosed battery cabinet Expected Battery Life (years): 2 - 5 RBC Quantity: 1 Battery Volt-Amp-Hour Capacity: 78
  • Dimensions: 2.00" x 3.90" x 5.90"
  • Weight: 4.48 lbs.
  • Model #: APCRBC154
  •  
  • $73.99 
  • Free Shipping
Tripp Lite RBC5-192 Replacement Battery Cartridge
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Tripp Lite RBC5-192 Replacement Battery Cartridge
  • Type: Battery Unit
  • Compatibility: Tripp Lite SmartOnline UPS: SU5000RT4UHV SU5000RT4UTF SU6000RT4UHV SU6000RT4UHVG SU6000RT4UHVHW SU6000RT4UTF SU6000RT4UTFHW SU6000RT4UHVPM
  • Specifications: Output Voltage:192 V DC Battery Life:26297.44 Hour to 43829.06 Hour
  • Weight: 65.00 lb
  • Model #: RBC5-192
  •  
  • $965.99 
  • Free Shipping
CyberPower RB1290X4H UPS Replacement Battery Cartridge
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ABC RBC 24 Battery
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ABC RBC 24 Battery
  • Type: Battery
  • Compatibility: SU1400RM2U, SU1400RMJ2U, SU1400R2BX120, SU1400R2X122, SU1400RM2UX93, SUA1500R2X93, SUA1500RM2U, SUA1500RMUS, DLA1500RM2U
  • Specifications: 4 Batteries: 12 Volts, 9 Amp-Hours Tab Size: 0.25
  • Dimensions: 8.50" x 13.50" x 3.26" (H x W x D)
  • Model #: RBC24
Smart Power Systems SBP800 -  Compatible Replacement Battery Kit
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Smart Power Systems SBP800 - Compatible Replacement Battery Kit
  • Series: Smart Power Systems Batteries
  • Type: Kit/Package
  • Weight: 7
  • Model #: SPS-SBP800
  •  
  • $21.99 
  • $21.30 Shipping
Battery Technology APCRBC123-SLA123 BN1250G Replacement Battery
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Battery Technology APCRBC123-SLA123 BN1250G Replacement Battery
  • Type: Battery
  • Compatibility: APC BN1250G, BR1000G, BR1000G-FR, BR1000G-IN, BR1000GI, BX1000G, BX1000G-CA, BX1300G, BX1300G-CA, BX1500G, BX1500G-CA, SMT750RM2U, SMT750RM2UTW, SMT750RMI2U
  • Weight: 12
  • Model #: APCRBC123-SLA123
Schneider Electric AP9641 APC UPS Management Network Card
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Refurbished Schneider Electric AP9641 APC UPS Management Network Card
  • Part Number: AP9641
  • Type: Management Card
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: AP9641-REF
  •  
  • $155.00 
  • Free Shipping
GREENTECH COMPATIBLE APCRBC154 SLA BATTERY FOR APC BACK-UPS BE600M1, BE670M1, BN675M1 12V 6AH REPLACES APCRBC154 RBC154 Battery Cartridge #154
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GREENTECH COMPATIBLE APCRBC154 SLA BATTERY FOR APC BACK-UPS BE600M1, BE670M1, BN675M1 12V 6AH REPLACES APCRBC154 RBC154 Battery Cartridge #154

Limited time offer, ends 10/15

  • Brand: GreenTech
  • Part Number: GTS-RBC154-12V6A
  • Type: Battery
  • Compatibility: APC BACK-UPS BE600M1, BE600M1-LM, BN600U1, BN650M1, BN675M1, BE670M1, BN650M1-CA, BN650M1S, BN650M1-TW, BN675M1
  • Model #: GTS-RBC154-12V6A
BTI UPS Replacement Battery Cartridge
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BTI UPS Replacement Battery Cartridge
  • Type: Battery
  • Specifications: Volts: 12V Cells: 2 Amps: 7.2A Chemistry: Sealed Lead Acid Color: Black
  • Model #: RBC48-SLA48-BTI
12V 9AH SLA Battery Replaces CP1290 6-DW-9 HR9-12 PS-1290F2 - 2PK
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12V 9AH SLA Battery Replaces CP1290 6-DW-9 HR9-12 PS-1290F2 - 2PK
  • Parts: 2 Year Warranty
  • Model #: PS12-9-2Pack249
  •  
  • $59.99 
  • Free Shipping
APC AP9630 UPS Network Management Card 2
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RefurbUPS OR500LCDRM1U -  Compatible Replacement Battery Kit
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RefurbUPS OR500LCDRM1U - Compatible Replacement Battery Kit
  • Series: CyberPower Intelligent LCD Batteries
  • Type: Kit/Package
  • Weight: 8
  • Model #: CYB-OR500LCDRM1U
  •  
  • $31.99 
  • $27.00 Shipping
APC UPS Battery Replacement for APC UPS Models SMT750, SMT750US, SUA750 and select others (RBC48)
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APC UPS Battery Replacement for APC UPS Models SMT750, SMT750US, SUA750 and select others (RBC48)
  • Type: Battery
  • Compatibility: Battery Volt-Amp-Hour Capacity: 168
  • Specifications: Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof Battery mounting: Stand alone battery stack Expected Battery Life (years): 3 - 5 RBC Quantity: 1 Battery blocks per string: 2
  • Dimensions: 4.25" x 5.20" x 5.9"
  • Model #: RBC48
  •  
  • $155.99 
  • Free Shipping
TRIPP LITE LCR2400 Line Conditioner
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TRIPP LITE LCR2400 Line Conditioner
  • Type: Line Conditioner
  • Specifications: Output Watt Capacity: 2400 Watts Nominal Output Voltage(s) Supported: 120V / 60Hz Built-in UPS output receptacles: 14 NEMA5-15R (2 front, 12 rear) Input cord length: 12 ft. LED Indicators: 5 LEDs show incoming voltage status UPS AC suppression joule rating: 1440 joules EMI / RFI AC noise suppression: 80 dB
  • Parts: 2 years limited
  • Labor: 2 years limited
  • Model #: LCR2400
  •  
  • $455.99 
  • Free Shipping
APC Smart-UPS SRT 72V 2.2kVA RM Battery Pack
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APC Smart-UPS SRT 72V 2.2kVA RM Battery Pack

OUT OF STOCK

  • Type: UPS Battery Pack
  • Compatibility: APC Smart-UPS SRT
  • Weight: 74.74 lb
  • Model #: SRT72RMBP

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)