Alexander MB5424 High Performance Replacement Battery 18.1 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.
Alexander MB5424 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 | 26 Ah
Terminal Type
Nut & Bolt
Alexander MB5424 Replacement Battery — Compatible with MB5424
The Alexander MB5424 replacement battery by SigmasTek is designed to deliver dependable compatibility, steady performance, and robust reliability for your power backup needs. This replacement battery meets or exceeds OEM SLA specifications and provides a high-performance battery solution that is maintenance-free and ready to install. Ideal for critical standby applications, the MB5424 replacement offers long-lasting battery life and consistent output to keep your systems running when you need them most.
Key Specifications
- Compatible Model: Alexander MB5424
- Brand (Replacement): SigmasTek
- Voltage: 12 Volts
- Capacity: 26 Ah
- Terminal Type: Nut & Bolt
- Technology: Absorbent Glass Mat (AGM)
- Design: Maintenance-Free, Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
Benefits
Built with AGM technology, this replacement battery provides exceptional durability and stable discharge characteristics that support long operational life. The maintenance-free, spill-proof design minimizes upkeep and simplifies installation, making it an attractive option for technicians and end users alike. As a high-performance battery, it offers reliable capacity and strong recovery characteristics, ensuring your equipment stays powered during outages or heavy use.
The Nut & Bolt terminal ensures a secure physical and electrical connection that withstands vibration and repeated service cycles. Certified by U.L. and CE, the MB5424 replacement battery meets recognized safety and performance requirements, which is particularly important for installations in UPS systems, emergency power setups, alarm systems, and other standby applications. This long-lasting battery also serves well in portable power units and other equipment that relies on sealed lead acid technology for dependable operation.
Choosing this SigmasTek replacement battery for your Alexander MB5424 will reduce downtime and deliver consistent runtime performance while preserving compatibility with existing charging and mounting systems. The product ships factory fresh and is backed by a 1 Year Warranty for added confidence.
Need a reliable replacement battery that delivers performance and longevity? Purchase the SigmasTek replacement for the Alexander MB5424 now and ensure uninterrupted power for your critical systems.
Technical Specifications
Product Highlights
- Brand Replacement : Alexander MB5424 Battery
- 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.




