Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-15655

Sunnyway SW12440 High Performance Replacement Battery 29.14 lb

15% off
Sale price $150.99 USD Regular price $177.99
Shipping calculated at checkout.
Compatible replacement for Sunnyway SW12440 model
Uses advanced Absorbent Glass Mat (AGM) technology
Maintenance-free and spill-proof for safe handling
U.L. Recognized and CE Certified for quality assurance
Includes 1 year warranty for peace of mind
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe

Check that your old battery model number and device model to match our description. This makes sure they work together.


We ship your order same day if you buy it before 4 PM EST.

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 40 Ah

Terminal Type

Nut & Bolt

Sunnyway SW12440 Battery (Replacement) - Compatible with Sunnyway SW12440

Ensure uninterrupted power with this replacement battery designed for the Sunnyway SW12440 model. Offering dependable performance and lasting reliability, this SLA replacement battery is engineered to meet or exceed OEM specifications. Whether for backup or daily use, this high-performance battery ensures your equipment receives steady, reliable power for critical applications.

Key Specifications

  • Model Compatibility: Sunnyway SW12440
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Voltage: 12 Volts
  • Capacity: 40 Ah
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility Note: Meets or exceeds OEM SLA battery specifications

Benefits

  • Durability: The AGM construction and sealed design provide robust protection and long-term durability in a maintenance-free package.
  • Long Life: This long-lasting battery is designed for reliable cycle life and consistent standby performance to protect your investment and systems.
  • High Performance: Delivers dependable 12V power and stable capacity, making it a reliable high-performance battery for demanding applications.
  • Safety & Compliance: U.L. recognition and CE certification indicate adherence to recognized safety and manufacturing standards.
  • Versatile Use Cases: Suited for UPS systems, emergency lighting, security panels, telecommunications, medical backups, and various portable tools and devices.
  • Maintenance-Free Operation: The spill-proof AGM design eliminates refilling and routine maintenance, reducing downtime and hassle.
  • OEM-Compatible Replacement: Guaranteed compatibility with the Sunnyway SW12440 model for easy, drop-in replacement without guesswork.

Ready to replace a failing battery? Choose this Sunnyway SW12440 replacement battery for a reliable, long-lasting battery solution. Order today to secure a high-performance battery that’s brand new, factory fresh, and backed by a 1 year warranty.

Technical Specifications

Voltage12 Volts
Amp Hours40 Ah
Terminal TypeNut & Bolt
Length (in.)7.76
Width (in.)6.5
Height (in.)6.69
Weight (lb.)29.11

Product Highlights

  • Brand Replacement : Sunnyway SW12440 Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • 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.