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: CB129X8-10367

Batteries For Dell 2700w (j728n) UPS, 8 X 12v, 9ah - 108wh

🚀 In stock and ready for shipment from our warehouse. Pickup NOT available for this product
Sale price $265.99 CAD Regular price $294.67
🔔
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 Dell 2700W (J728N) – 12V 9Ah (8 Pack) with T2 Terminals

High-quality 12V 9Ah AGM sealed lead acid replacement battery kit designed to restore dependable backup power for the Dell 2700W (J728N) UPS system. Built for reliable standby performance, stable output, and a precise fit for demanding UPS applications.

8 Battery Pack 12V 9Ah Each AGM Sealed Lead Acid T2 Terminals

Technical Specifications

BrandCB Range
Battery ModelCB129
Battery TypeSealed Lead Acid (AGM)
Voltage12V
Capacity9Ah per battery
Pack Quantity8 Batteries
Terminal TypeT2
SKUCB129
Battery Dimensions151 × 65 × 94mm
Height to Terminal100mm
Battery Dimensions (Imperial)5.95 × 2.56 × 3.70in
Height to Terminal (Imperial)3.94in
Gross Weight20kg / 44.09 lbs
ApplicationUPS Backup Power

Key Benefits

  • Reliable Backup Power: Restores dependable performance for the Dell 2700W (J728N) UPS.
  • Complete 8-Pack Kit: Includes eight 12V 9Ah batteries for a full replacement set.
  • Maintenance-Free AGM Design: Spill-proof sealed construction for clean, hassle-free operation.
  • Stable Energy Output: Built to provide consistent standby and backup performance during outages.
  • Precision Fit: Standard 9Ah battery case size with T2 terminals for UPS battery compartments.
  • Durable Construction: Manufactured using quality materials for strong service life and dependable energy retention.
  • Installation Ready: Designed for use with your existing UPS wiring layout and battery configuration.

Compatible Model

Dell UPS

Dell 2700W J728N

Designed as a replacement battery kit for Dell UPS systems using the 2700W (J728N) battery configuration.

What’s Included

  • 8 × 12V 9Ah AGM batteries
  • T2 terminals fitted to each battery
  • Suitable for replacing the full internal battery set in compatible UPS units

Important Installation Notes

  • Re-use your existing connectors and cables – some assembly is required.
  • Connectors and wiring harness are not included.
  • Use the original harness and connector from your UPS when installing the new batteries.
  • Ensure correct polarity and proper handling during installation.

Why Choose This Replacement Battery Kit?

  • High Quality AGM Cells: Designed for standby use and backup reliability.
  • Cost-Effective UPS Refresh: Replace the full battery set without replacing the complete UPS.
  • Trusted Form Factor: Standard industry sizing helps ensure a straightforward fit in many UPS trays and cartridges.
  • Ready for Critical Backup Use: Ideal for servers, network hardware, office systems, and protected equipment.

Warranty & Returns

  • 1-Year Warranty
  • 30-Day Return Policy for a full refund

Please verify the battery size, terminal type, quantity required, and UPS model before ordering to ensure correct fitment.

Reliable Power for Uninterrupted Performance

Keep your Dell 2700W (J728N) operating at peak performance with this complete 8-pack 12V 9Ah AGM replacement battery kit. Engineered for dependable UPS backup power, this set delivers the performance, fit, and reliability needed to protect essential equipment when mains power fails.

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

Technical Specifications

Batteries For Dell 2700W (J728N) UPS – 8 x 12V 9Ah Replacement Battery Kit
Product Details
Product Model Batteries For Dell 2700W (J728N) UPS – 8 x 12V 9Ah
Brand CB Range
Type UPS Battery Kit
SKU CB129X8-10367
Individual Battery Model CB129
Compatible Device Dell 2700W (J728N)
Battery Chemistry AGM (Sealed Lead Acid)
Voltage 12V
Individual Capacity 9Ah
Individual Energy 108Wh
Number of Batteries in Kit 8
Terminal Type T2
Gross Weight (All Batteries) 20 kg / 44.09 lbs
Battery Dimensions
Length 5.95 inches / 151 mm
Width 2.56 inches / 65 mm
Height 3.7 inches / 94 mm
Height to Top of Terminal 3.94 inches / 100 mm
Typical Applications
Applications UPS backup systems, critical power support, standby power systems, network equipment backup
Replacement battery kit for Dell 2700W (J728N) systems requiring eight 12V 9Ah AGM batteries with T2 terminals.
Latest Update: 14 March 2025

OEM Battery Cross Reference

Device Model Original Battery Configuration Replacement
Dell 2700W (J728N) 8 x 12V 9Ah CB129X8-10367 / 8 x CB129
Compatible replacement battery kit for confirmed systems using an eight-battery 12V 9Ah configuration with T2 terminals.
Confirmed compatible model group 1 model confirmed
Dell 2700W (J728N)
Replacement battery configuration
This kit contains 8 x CB129 12V 9Ah AGM batteries with T2 terminals.
Battery format details
Each battery measures 151 mm x 65 mm x 94 mm, with an overall terminal height of 100 mm.

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.