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CB Range  |  SKU: CB123.5X1-9909

Battery For Cyberpower Cp425hg UPS, 1 X 12v, 3.5ah - 42wh

🚀 In stock and ready for shipment from our warehouse. Pickup NOT available for this product
Sale price $26.99 CAD Regular price $29.99
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Note: The 3.5Ah battery will provide approximately 16.67% longer runtime than the standard 3.0Ah version. Despite its higher capacity, it will replace the original battery perfectly and will fit and charge without any issues.
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Just a Quick Reminder!
Please double-check that the batteries you're ordering match the ones in your unit before completing your purchase.

Please note: We only supply the batteries shown in the images. Product images of devices are shown for reference only.

UPS Battery for CyberPower CP425HG – 12V 3.5Ah Replacement Battery (1 Pack)

High-quality 12V 3.5Ah sealed lead acid AGM replacement battery designed to restore reliable backup performance for your CyberPower CP425HG UPS. Built for dependable standby power, stable output, and a precise fit in compatible UPS systems.

12V Output 3.5Ah Capacity 42Wh AGM Sealed Lead Acid T1 Terminals

Technical Specifications

BrandCB Range
Battery ModelCB123.5
Battery TypeSealed Lead Acid (AGM)
Voltage12V
Capacity3.5Ah
Energy42Wh
Terminal TypeT1
Pack Quantity1 Battery
Dimensions5.24" x 2.64" x 2.36"
Terminal Height2.60" Overall Height
Gross Weight1.35 Kg / 2.98 lbs
SKUCB123.5

Key Benefits

  • Reliable Backup Power: 12V 3.5Ah output helps keep your UPS ready for outages and fluctuations.
  • Maintenance-Free AGM Design: Spill-proof sealed construction for safe, hassle-free operation.
  • Direct Replacement Fit: Built for CyberPower CP425HG systems requiring a 12V 3.5Ah battery with T1 terminals.
  • Long-Lasting Performance: Premium internal construction supports dependable standby use and power retention.
  • Simple Installation: Designed to work with your existing UPS connectors and cabling.
  • Single Battery Pack: Includes 1 replacement battery for the required UPS configuration.

Compatible Model

CyberPower

CP425HG

Designed as a replacement UPS battery for compatible CyberPower backup power systems.

Important Installation Notes

  • Re-use Existing Connectors: Existing UPS cables and connectors should be transferred during installation.
  • Assembly Required: Some setup may be needed depending on your UPS configuration.
  • Check Terminal Type: Confirm your unit requires T1 terminals before ordering.
  • Verify Battery Size: Ensure the dimensions match your existing battery for correct fitment.
  • Handle with Care: Follow proper battery handling and installation procedures for safe operation.

What’s Included

1 x 12V 3.5Ah Battery AGM Sealed Lead Acid T1 Terminal Configuration

Warranty & Returns

  • 30-Day Return Policy
  • 1-Year Warranty

Please verify your original battery specifications before purchase to ensure correct compatibility.

Performance Overview

Keep your CyberPower CP425HG UPS operating at its best with a dependable replacement battery engineered for stable standby performance.

  • Suitable for UPS backup power applications
  • Delivers dependable 12V output
  • Compact sizing for compatible installations
  • Ideal for restoring aging or failed UPS batteries

Reliable Power for Uninterrupted Performance

Choose this CB123.5 12V 3.5Ah UPS replacement battery to restore dependable backup power for your CyberPower CP425HG. Designed for reliable operation, easy replacement, and long service life, it helps keep your essential equipment protected when power interruptions occur.

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🔋 What’s mAh All About?

mAh stands for milliamp hours—basically, how much "fuel" your battery can hold. A higher or lower mAh than your original battery? No worries! 🙌 It won’t affect charging or operation—just means your device might run a bit longer or shorter between charges. Still 100% compatible. Still 100% awesome. 💪✨

Before ordering please read

Ensure the original battery model number is mentioned in our product description and verify that your device model number is also listed in the description.

How to Look after your new lithium battery!!

See how to look after your battery if its lithium Lithium Care

Delivery and Shipping

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Technical Specifications

Battery For CyberPower CP425HG UPS – 12V 3.5Ah Replacement Battery
Product Details
Product Model Battery For CyberPower CP425HG UPS, 1 x 12V 3.5Ah - 42Wh
Brand CB Range
Type UPS Replacement Battery
SKU CB123.5X1-9909
Individual Battery Model CB123.5
Battery Chemistry AGM (Sealed Lead Acid)
Rechargeable Yes
Voltage 12V
Capacity 3.5Ah
Energy 42Wh
Terminal Type T1
Number of Batteries in Kit 1
Gross Weight 1.35 kg / 2.98 lbs
Battery Dimensions
Length 5.24 inches / 133 mm
Width 2.64 inches / 67 mm
Height 2.36 inches / 60 mm
Height to Top of Terminal 2.60 inches / 66 mm
Application
Designed For CyberPower CP425HG UPS systems requiring 1 x 12V 3.5Ah battery with T1 terminals
Designed for dependable backup power performance in compatible CyberPower UPS systems using a single 12V 3.5Ah AGM battery.
Latest Update: 14 March 2025

Compatibility Cross Reference

Device Model Battery Configuration Replacement Battery
CyberPower CP425HG 1 x 12V 3.5Ah CB Range CB123.5
Confirmed compatibility shown above is based only on the model data provided for this battery listing.
Confirmed Model Coverage

CyberPower CP425HG uses a single 12V 3.5Ah AGM battery with T1 terminals in this replacement configuration.

Battery Fitment Summary

This replacement kit includes one AGM sealed lead acid battery rated at 12V and 3.5Ah.

Terminal type is T1, with battery dimensions of 133 mm x 67 mm x 60 mm and 66 mm to the top of the terminal.

What's Included

1 x CB Range CB123.5 replacement UPS battery.

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