IBT Technologies BT40-12 High Performance Replacement Battery 29.14 lb
— Ready to ship immediately
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.
IBT Technologies BT40-12 High Performance Replacement Battery is backordered and will ship as soon as it is back in stock.
Let customers speak for us
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
✉ sales@batteryweb.com
Battery Care Tips
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
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
⚠️ 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
IBT Technologies BT40-12 Replacement Battery — Compatible with IBT Technologies BT40-12
The IBT Technologies BT40-12 replacement battery offers reliable compatibility and consistent performance for systems that require a trustworthy SLA power source. Engineered to meet or exceed the OEM specifications for the IBT Technologies BT40-12, this replacement battery provides a dependable, maintenance-free power solution. Ideal for applications that demand steady output and longevity, this high-performance battery is a practical upgrade for backup systems and portable equipment.
Key Specifications
- Compatible Model: IBT Technologies BT40-12
- Voltage: 12 Volts
- Capacity: 40 Ah
- Terminal Type: Nut & Bolt
- Battery Technology: Absorbent Glass Mat (AGM)
- Design: Maintenance-Free with Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Brand: SigmasTek (replacement)
- Warranty: 1 Year Warranty
Benefits
Designed for dependable service life, this replacement battery features AGM construction for enhanced cycle life, low self-discharge, and efficient recharging. Users will appreciate the maintenance-free operation and spill-proof construction, which simplify installation and ongoing use. The SigmasTek unit provides a long-lasting battery solution suited to continuous standby duty and cyclic applications.
Certified by U.L. and CE, this 12V 40Ah battery meets recognized safety and performance standards, ensuring reliable operation in critical systems. Typical uses include UPS backup, emergency lighting, alarm systems, medical equipment, electric mobility devices, and various industrial tools. The nut & bolt terminals deliver secure connections for reliable current transfer and reduced risk of accidental disconnection.
As a high-performance battery replacement for the IBT Technologies BT40-12, this unit is ideal for technicians and end users who require consistent runtime and trustworthy recharge behavior. Packaged brand new and backed by a 1 year warranty, it offers both peace of mind and practical performance for a variety of installations where quality and endurance matter.
Don’t let weak batteries interrupt your equipment—purchase this IBT Technologies BT40-12 replacement battery now for a long-lasting, high-performance battery solution you can rely on.
Technical Specifications
Product Highlights
- Brand Replacement : IBT Technologies BT40-12
- Manufacturer: SigmasTek
- Product Type: SLA Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.




