Sigmastek Mighty Max ML1.3-12 Compatible Replacement Battery 1.21 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.
Sigmastek Mighty Max ML1.3-12 Compatible 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 | 1.2 Ah
Terminal Type
F1
Replacement for Mighty Max ML1.3-12 Battery — Compatible with Mighty Max ML1.3-12
This replacement battery is designed to meet or exceed OEM specifications for the Mighty Max ML1.3-12 model, delivering reliable, maintenance-free power for critical equipment. Built with Absorbent Glass Mat (AGM) technology and sealed lead acid (SLA) construction, the replacement for Mighty Max ML1.3-12 offers dependable performance and peace of mind for everyday and backup power needs. If you’re searching for a replacement battery that balances affordability and quality, this SigmasTek option is an excellent fit.
Key Specifications
- Compatible Model: Mighty Max ML1.3-12
- Battery Type: Rechargeable Sealed Lead Acid (SLA)
- Technology: Absorbent Glass Mat (AGM)
- Design: Maintenance-Free with Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 1.2 Ah
- Terminal Type: F1
Benefits
As a high-performance battery replacement, this unit provides steady voltage and reliable capacity for both standby and cyclic applications. The AGM construction makes it spill-proof and maintenance-free, reducing downtime and maintenance costs while improving safety. It is a long-lasting battery choice for installations where reliability matters—especially in UPS systems, emergency lighting, alarm and security systems, telecommunication backups, and portable power tools.
Because it is U.L. recognized and CE certified, you get an added layer of assurance in performance and safety compliance. The 1 year warranty and brand new, factory-fresh condition mean you receive a tested, ready-to-use replacement battery that fits the Mighty Max ML1.3-12 specifications. The compact 12 Volt form factor and F1 terminals make installation straightforward in compatible housings and connectors.
Whether replacing an old battery in a critical backup system or stocking replacement modules for service calls, this replacement battery combines practical durability with consistent power delivery. It is an efficient, cost-effective way to maintain uptime and protect equipment.
Don’t wait until power failure impacts your operations—purchase this replacement for Mighty Max ML1.3-12 (SigmasTek 12 Volts 1.2 Ah F1) today and secure a dependable, long-lasting battery solution.
Technical Specifications
Product Highlights
- Brand Replacement : Replacement For Mighty
- 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.



