Need to return a product:- Click Here for returns

Need to track your order:- Track here

Check out our new website, faster smarter and easier to use.

CB Range  |  SKU: SHR3.6-12-CP425HG

UPS Battery For Cyberpower CP425HG, 425 VA / 255 W, 1 X 12v, 3.6ah

🚀 In stock and ready for shipment from our warehouse. Pickup NOT available for this product
Sale price $69.99 CAD Regular price $76.99
⚠️
NOTE: This battery does NOT cross to standard 3.2Ah, 3.4Ah, or 3.5Ah batteries. It has a taller and thinner form factor than typical models, so please check the physical dimensions of your original battery carefully.

Both terminals are 0.25 inch (T2) size, which may differ from batteries with smaller T1 terminals.
🔔
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.

Battery for Cyberpower CP425HG, 425 VA / 255 W UPS – 12V 3.6Ah AGM Replacement (1-Pack)

Restore dependable backup performance with this high-quality 12V 3.6Ah sealed lead acid AGM replacement battery for the Cyberpower CP425HG UPS. Engineered for compact fitment, stable standby power delivery, and maintenance-free operation, this replacement battery is designed to help keep your electronics protected during outages, voltage drops, and power fluctuations.

12V AGM Power 3.6Ah Capacity 43.2Wh Energy T2 Terminal

Technical Specifications

Product Type UPS Replacement Battery
Brand CB Range
Battery Model SHR3.6-12-CST350NET
Battery Type Sealed Lead Acid (AGM)
Chemistry AGM / VRLA
Voltage 12.0V
Capacity 3.6Ah
Energy 43.2Wh
Connector Type T2 (0.250")
Dimensions 4.02" × 1.89" × 2.59" (102 × 48 × 66mm)
Weight 1.35 Kg / 2.98 lbs
Pack Quantity 1 Battery
SKU SHR3.6-12-CST350NET

Why Choose This CP425HG Replacement Battery?

  • Reliable Backup Power: Designed specifically to provide stable standby performance for the Cyberpower CP425HG UPS.
  • Maintenance-Free AGM Design: Spill-proof sealed lead acid construction for safe and hassle-free operation.
  • Compact UPS Fitment: Sized to fit tight battery compartments commonly found in compact UPS systems.
  • Durable ABS Construction: Rugged battery casing designed for dependable long-term everyday performance.
  • Consistent Standby Performance: Helps maintain power during outages, surges, and voltage fluctuations.
  • Easy Replacement Solution: Practical single-battery replacement option for restoring UPS runtime and reliability.

Compatible UPS Models

Cyberpower CP425HG CP425HG 425 VA / 255 W UPS

Please confirm your existing battery dimensions, voltage, capacity, and terminal type before ordering to ensure proper compatibility.

Typical Applications

  • UPS backup power systems
  • Home office battery backup units
  • Electronics standby power applications
  • Compact uninterrupted power supply systems
  • Backup protection during outages and brownouts
  • Replacement for worn or depleted UPS batteries

Important Purchase Notes

  • Battery Only: UPS unit is not included with purchase.
  • Re-Use Existing Hardware: Existing connectors, cables, and wiring harnesses must be re-used.
  • Some Assembly Required: Installation may require transferring existing connectors.
  • Ships from Canada: Canadian stock with dependable support and shipping.
  • Warranty Included: Backed by a 1-Year Replacement Warranty.
  • 30-Day Returns: Covered by a 30-Day Return Policy.

Product Highlights

  • Voltage: 12V
  • Capacity: 3.6Ah
  • Energy Rating: 43.2Wh
  • Battery Chemistry: AGM Sealed Lead Acid
  • Terminal Type: T2 (0.250")
  • Dimensions: 102 × 48 × 66mm
  • Pack Size: 1 Battery

Cyberpower CP425HG Battery FAQs

  • Is this battery compatible with the Cyberpower CP425HG UPS?
    Yes. This battery is specifically intended as a replacement for the Cyberpower CP425HG 425 VA / 255 W UPS.
  • Does this replacement battery include cables or connectors?
    No. You must re-use your existing connectors, cables, and wiring harness from your original UPS battery.
  • What type of battery is this?
    This is a sealed lead acid AGM (Absorbent Glass Mat) maintenance-free UPS replacement battery.
  • What terminal type does this battery use?
    This battery uses T2 (0.250") Faston terminals.
  • Is the battery maintenance-free?
    Yes. AGM batteries are sealed, spill-proof, and maintenance-free under normal operating conditions.

What You Receive

  • Included: 1 × 12V 3.6Ah AGM UPS replacement battery
  • Not Included: UPS unit
  • Not Included: Wiring harness
  • Not Included: Battery cables
  • Not Included: Connectors or installation hardware
  • Installation: Existing wiring and connectors must be transferred from the original battery

Reliable Backup Power for Critical Devices

Restore dependable runtime and standby protection to your Cyberpower CP425HG UPS with this premium 12V 3.6Ah AGM replacement battery. Built for stable performance, compact fitment, and maintenance-free convenience, this replacement battery is a reliable solution for keeping your essential electronics protected during unexpected outages and voltage fluctuations.

Want Instant Shipping Costs?

🚚 Instant Shipping Costs?

It’s super simple! Just add the product you want to your cart, enter the quantity and your postal code, and you'll instantly see real-time shipping rates for all in-stock items. Fast, easy, and totally hassle-free!

💡 Shipping heavy or bulk items?

If your order includes multiple heavy products, we recommend requesting a custom quote — we may be able to arrange a better rate with a transport truck! 

Please note: We reserve the right to send heavier items by transport truck if the carrier's maximum weight per package is exceeded or if we consider it too risky to place with a courier due to the possibility of damage occurring.

🔋 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

See our shipping policy and details at this link Shipping Details

📸 Send Us Your Battery Image

Not sure which replacement battery you need? Just snap a Photo / Video of your current battery and send it our way! Our team will quickly identify the exact match and recommend the perfect replacement model — no guesswork, no hassle.

🔍 Fast, Expert Assistance

We’ve helped thousands of customers find the right battery — let us do the same for you. Whether it’s for an alarm system, emergency light, or industrial equipment, we’ve got you covered.

📤 Click below to post your image and get started:

POST YOUR IMAGE

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.