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 Generic  |  SKU: CB1218-NB-304

12V, 18Ah, replacement battery for Sigmastek Sp12-18hr with NB terminals

🚀 In stock and ready for shipment from our warehouse. Pickup NOT available for this product
Sale price $58.99 CAD Regular price $64.61
🔍
Compatibility Reminder:
Please make sure that the termination style shown in this listing will work for your application, as connector types can vary between models.

It’s also important to confirm that the dimensions of our suggested replacement match the battery you’re replacing to ensure a proper fit in your device or battery compartment.
🔔
Just a Quick Reminder!

Please double-check that the batteries you're ordering match the ones in your unit before completing your purchase. We want to make sure you get exactly what you need!

CB1218-NB 12V 18Ah AGM Sealed Lead Acid Battery Replacement for Sigmastek Sp12-18hr – 216Wh

High-capacity 12V 18Ah AGM sealed lead acid battery engineered as a reliable replacement for the Sigmastek Sp12-18hr. Designed for UPS systems, mobility equipment, emergency lighting, alarm systems, telecom equipment, and backup power applications requiring dependable performance.

12V Output 18Ah Capacity AGM VRLA NB Terminals

Technical Specifications

+
Model CB1218-NB
Replacement For Sigmastek Sp12-18hr
Voltage 12V
Capacity 18Ah
Energy 216Wh
Battery Type Sealed Lead Acid (AGM)
Terminal Type NB
Internal Resistance 14mΩ
Max Discharge Current 180A
Operating Temperature 25°C (77°F) nominal
Weight Approx. 5.2Kg / 11.46 lbs
Dimensions 181 × 77 × 167mm / 7.13" × 3.03" × 6.59"
SKU CB1218-NB

Why Choose This Product

+
  • Reliable 12V 18Ah output for demanding backup and mobility applications.
  • Maintenance-free AGM construction with spill-proof VRLA design.
  • High discharge capability with up to 180A maximum discharge current.
  • Durable ABS housing for long-term use in demanding environments.
  • Suitable for UPS systems, scooters, emergency lighting, alarms, solar and telecom equipment.
  • Drop-in replacement compatibility for Sigmastek Sp12-18hr applications.

Compatible Models

+
Sigmastek Sp12-18hr

Typical Applications

+
UPS Systems Mobility Equipment Emergency Lighting Electric Scooters Alarm Systems Solar Systems Telecom Equipment

Product Highlights

+
  • 216Wh energy capacity for extended runtime.
  • NB terminal configuration for installation flexibility.
  • Wide operating capability from -20°C to 50°C.
  • Maintenance-free operation with no water top-ups required.
  • Existing cables may often be reused during installation.

FAQs

+

Will this replace the Sigmastek Sp12-18hr?
Yes, the CB1218-NB is designed as a replacement for the Sigmastek Sp12-18hr.

Do I need maintenance?
No, this AGM battery is fully sealed and maintenance-free.

Should I verify fitment before ordering?
Yes, terminal type and dimensions should always be checked before purchase.

Warranty & Returns

+

Includes a 1-Year Replacement Warranty and 30-Day Return Policy.

Confidence for Your Purchase

+

Please verify terminal type and physical dimensions before ordering. Minor connector adjustments may be required depending on your installation.

Existing cables are often reusable, but installation requirements may vary by application.

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.