Welcome to our store. Proudly serving customers across North America for years. Learn more

For support or quotes: sales@batteryweb.com

WELCOME10
SigmasTek  |  SKU: BW-6218

Potter Electric BT-40 High Performance Alarm Replacement Battery 3.5 lb

19% off
Sale price $29.99 USD Regular price $36.99
Shipping calculated at checkout.
Meets or exceeds original OEM specifications for reliable performance
Valve regulated, spill-proof design for safety and maintenance-free use
U.L. Recognized and CE Certified for trusted quality and compliance
Rugged plastic case ensures durability and long-lasting protection
Includes 1 brand new, factory fresh 12V 5AH battery with 1-year warranty
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 | 5 AH

Terminal Type

F1

Potter Electric BT-40 Replacement Battery — SP12-5 Compatible

Maintain reliable operation of your Potter Electric BT-40 system with this compatible replacement battery. The SP12-5 (12 V 5 AH) unit is built to meet or exceed OEM specifications to ensure your alarms and control devices remain powered when you need them most. This high-performance battery is a practical long-lasting battery choice for security and backup applications.

Key Specifications

  • Compatible Model: Potter Electric BT-40
  • Battery Model: SP12-5
  • Voltage: 12 Volts
  • Capacity: 5 AH
  • Quantity Included: 1 battery
  • Construction: Valve Regulated Spill Proof
  • Certifications: U.L. Recognized and CE Certified
  • Case: Rugged Plastic Case and Cover
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Designed For: Alarm and access control systems

Benefits

This replacement battery is engineered for resilience and extended service life. The valve regulated, spill proof construction lowers maintenance needs and enhances safety. The sturdy plastic housing protects the battery from handling and environmental stressors, making it a durable option for repeated service cycles.

As a high-performance battery, the SP12-5 delivers dependable voltage under load and efficient recharge behavior. Certified by U.L. and CE, it aligns with industry standards for safety and reliability, ensuring your Potter Electric BT-40 system has a trusted power source.

Common uses include Access Control Systems, Home Alarm Systems, Burglar Alarm Systems, Security Systems, and Power Supplies. It is also suitable for UPS backup, emergency power applications, and small tools or portable equipment that accept a sealed 12V 5AH battery.

Whether you are replacing an aging battery or stocking a spare, this SP12-5 provides the consistent performance required to protect critical systems and maintain uptime.

Don’t risk downtime — purchase this Potter Electric BT-40 replacement battery (SP12-5) today for a high-performance, long-lasting battery solution and fast shipping to restore full protection.

Technical Specifications

Voltage12 Volts
Amp Hours5 AH
Terminal TypeF1
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)3.5

Product Highlights

  • Brand Replacement : Potter Electric BT-40
  • Manufacturer: SigmasTek
  • Product Type: Security Alarm
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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.


🔋 Battery Finder
🔋
Battery Assistant AI
Online — BatteryWeb.com