Description
Key Benefits
- Maintains optimal battery temperature in cold environments
- Expandable to connect up to 14 mats with one thermostat
- Easy peel-and-stick installation with no tools required
- Designed specifically for lithium battery heating
- Durable silicone material with 3M adhesive for reliable heat transfer
- Safe wiring with cables oriented for correct series connection
- Ideal for indoor battery storage applications
Best Uses
Tech Specs
| Spec | Value |
|---|---|
| Power Consumption | 70 W |
| Input Voltage | 120 V |
| Dimensions (L × W × H) | 11.4 × 15.6 × 0.1 in |
| Material | Silicone with 3M adhesive |
| Parallel Capacity | Up to 14 mats (max 980 W total) |
| Application | Indoor |
| Installation | Peel and stick, series-wired |
| Warranty | 2 years |
Warranty
Important: Warranty terms may vary based on installation conditions and system configuration. See manufacturer documentation for full details.
More Info
The Fortress Heat Mat Kit Add-On Mat is designed to supplement heating for lithium battery systems in cold environments, ensuring safe and reliable battery operation during freezing conditions.
This add-on mat works in conjunction with the main Fortress Heat Mat Kit thermostat controller, allowing users to expand heating coverage efficiently.
Its peel-and-stick silicone pad with 3M adhesive enables quick and tool-free installation directly onto battery surfaces.
The mat’s durable and flexible silicone material ensures consistent heat transfer and long-lasting adhesion.
Wiring is designed for safety and simplicity, with cables oriented toward the breaker side for correct series connection.
Engineered specifically for indoor use, the mat is ideal for enclosed battery storage such as cabinets and utility closets.
Users can connect up to 14 add-on mats in parallel, supporting a maximum total power of 980 watts under a single thermostat controller.
Fortress Power is a U.S.-based leader in smart energy storage solutions, focusing on innovation, safety, and sustainability.





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