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New SLA Battery Universal 12V 12Ah UB12120 Replacement by PowerStar
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  • $38.49 
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NEW 12V 7AH Home Security Alarm System Battery Sealed Lead Acid SLA F1 Connector
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Replacement Energizer EN12-3.2 (RBC35) 12V 3.3Ah UPS Battery
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Replacement Energizer EN12-3.2 (RBC35) 12V 3.3Ah UPS Battery
  • Parts: 2 Year Warranty
  • Model #: PS12-3.3-225
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  • $22.88 
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BELKIN F6C150 - Factory Fresh Compatible Replacement Battery Kit
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BELKIN F6C150 - Factory Fresh Compatible Replacement Battery Kit
  • Type: Battery
  • Weight: 20
  • Model #: BAT-BEL-F6C150
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  • $47.99 
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BELKIN F6C1100spUNV - Factory Fresh Compatible Replacement Battery Kit
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BELKIN F6C1100spUNV - Factory Fresh Compatible Replacement Battery Kit
  • Type: Battery
  • Weight: 10
  • Model #: BAT-BEL-F6C1100spUNV
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  • $23.99 
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Upsonic LAN 40 - Factory Fresh Compatible Replacement Battery Kit
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Upsonic LAN 40 - Factory Fresh Compatible Replacement Battery Kit
  • Type: Battery
  • Weight: 6
  • Model #: BAT-US-LAN 40
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  • $19.99 
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TechnaCell 4JSM14 - Factory Fresh Compatible Replacement Battery
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TechnaCell 4JSM14 - Factory Fresh Compatible Replacement Battery
  • Type: Battery
  • Weight: 4
  • Model #: BAT-ALM-TEC-4JSM14
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  • $11.99 
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Portalac PX12072 Compatible Verizon Fios ONT BBU Replacement Battery
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Portalac PX12072 Compatible Verizon Fios ONT BBU Replacement Battery
  • Series: Home
  • Type: Kit/Package
  • Weight: 6
  • Model #: XREF-POR-PX12072
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PS-6100 6V 12AH Replacement Battery for APC AP 550ES (Requires 2)
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  • $27.88 
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Replacement RBC35 WP3-12 One Replacement Battery 12 Volt 3.3Ah for APC New
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  • $22.88 
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ONeAc 436-014 - Factory Fresh Compatible Replacement Battery Kit
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ONeAc 436-014 - Factory Fresh Compatible Replacement Battery Kit
  • Type: Battery
  • Weight: 24
  • Model #: BAT-OAC-436-014
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  • $87.99 
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ONeAc ON900 - Factory Fresh Compatible Replacement Battery Kit
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ONeAc ON900 - Factory Fresh Compatible Replacement Battery Kit
  • Type: Battery
  • Weight: 24
  • Model #: BAT-OAC-ON900
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  • $87.99 
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ONeAc 436-008 - Factory Fresh Compatible Replacement Battery Kit
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ONeAc 436-008 - Factory Fresh Compatible Replacement Battery Kit
  • Type: Battery
  • Weight: 24
  • Model #: BAT-OAC-436-008
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  • $87.99 
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12v 7Ah Replacement Battery for RBC2 for APC 300 BK400 BK280 BP280 NEW
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  • $35.88 
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Battery 6V 12AH F2 Replacement Battery for Modified Powerwheels
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1 - UB1270 VERIZON FIOS REPLACEMENT BATTERY 12V 7AH SLA RECHARGEABLE BATTERY
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12V 12Ah Peg Perego Gator Polaris Gaucho Hummer Battery Replacement Battery
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Para Systems/MinuteMan ED1000RMT2U -  Compatible Replacement Batteries
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Para Systems/MinuteMan ED1000RMT2U - Compatible Replacement Batteries
  • Type: Battery
  • Weight: 21
  • Model #: BAT-PS-ED1000RMT2U
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  • $53.99 
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12V 12AH Battery Replaces UB12150F2 12V 15AH Battery - NEW -
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12V 12AH Battery Replaces UB12150F2 12V 15AH Battery - NEW -
  • Parts: 2 Year Warranty
  • Model #: AGM1212-55
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Para Systems/MinuteMan ED1000RM2U -  Compatible Replacement Batteries
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Para Systems/MinuteMan ED1000RM2U - Compatible Replacement Batteries
  • Type: Battery
  • Weight: 21
  • Model #: BAT-PS-ED1000RM2U
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  • $53.99 
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UE 1218HRNB Battery Replaces UPS Energy APC CP15B48 Battery
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UE 1218HRNB Battery Replaces UPS Energy APC CP15B48 Battery
  • Type: Battery
  • Weight: 15
  • Model #: UE-APC-CP15B48
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UE 1218HRNB Battery Replaces UPS Energy APC CP50B48 Battery
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UE 1218HRNB Battery Replaces UPS Energy APC CP50B48 Battery
  • Type: Battery
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UE 1218HRNB Battery Replaces UPS Energy APC CP24B12 Battery
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UE 1218HRNB Battery Replaces UPS Energy APC CP24B12 Battery
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UE 1218HRNB Battery Replaces UPS Energy APC CP75B12 Battery
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UE 1218HRNB Battery Replaces UPS Energy APC CP75B12 Battery
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Replacement For EXP12180 12 Volt 18 Ah Rechargeable Battery with Nuts and Bolts
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LC-R0612P Black Medium 6V 12Ah VRLA Battery with F1 Terminal
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LC-R0612P Black Medium 6V 12Ah VRLA Battery with F1 Terminal
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UB1270ALT13-12V 7Ah Battery Replacement for Verizon Fios Systems 12 Volt 7
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Replacement PS-1220 - 12 Volt/2.3 Amp Hour Sealed Lead Acid Battery with 0.187
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12V 12AH Sealed Lead Acid Battery for Hoveround Activa Wheelchair by POWERSTAR
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12V 18AH RECHARGEABLE SEALED LEAD ACID DEEP-CYCLE SLA BATTERY SLA1116
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12V 18Ah CB19-12 Sealed Lead Acid AGM Rechargeable Deep Cycle Battery NEW
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New 6V 12AH SLA Battery RBC52 Tripplite UB6120 Modified Power Wheels
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PowerStar 12V / 18Ah Electric Vehicle VRLA Battery - NB Terminal
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NEW Upgrade 12V 18Ah Sealed Lead Acid Battery for Modified Power Wheels (VRLA)
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PowerStar brand replacement LC-R0612P Black Medium 6V 12Ah VRLA Battery with F1 Terminal
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Replacement Battery for UB12120 D5775 F2 12V 12AH RBC6 Childrens Toy Car
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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)