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Fortress Power Heat Mat Kit – Add-On Mat

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HeatMatKit

$59.00
Free shipping with delivery between Apr 02 - Apr 09
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Fortress Heat Mat Kit – Add-On Mat

Cold-Climate Heating for Lithium Batteries – Expandable to 980W. Stay Warm. Stay Powered.

The Fortress Heat Mat Kit – Add-On Mat is a peel-and-stick electric heating element designed to extend thermal protection across multiple lithium battery modules. When paired with the main Fortress Heat Mat Kit thermostat controller, it ensures safe, reliable battery operation in cold environments, especially during freezing temperatures.

Perfect for expanding indoor battery heating coverage, the Heat Mat Add-On offers a fast, flexible, and effective solution for keeping batteries within their optimal operating range.

Key Features

  • Cold-Weather Battery Heating: Maintains battery temperatures within recommended charging/discharging ranges for safe performance in freezing conditions.
  • Modular, Expandable Design: Connect up to 14 add-on mats in parallel (maximum 980W) to a single thermostat controller for expanded heating coverage.
  • Tool-Free Installation: Peel-and-stick silicone backing allows for fast, secure application directly onto the battery surface.
  • Optimized for eFlex Max & FlexTower Systems: Designed for indoor use with Fortress Power battery models needing additional heating in cold climates.

Applications

  • Expanding Heating Coverage in Fortress Heat Mat Systems
  • Battery Banks in Cold Climates
  • Enclosed Indoor Battery Storage (Utility Closets or Cabinets)
  • eFlex Max & FlexTower Battery Heating Support

What’s Included

  • 1 × Fortress Heat Mat Add-On Heating Pad
  • Pre-installed Adhesive Backing
  • Connection Cable for Linking to Main Thermostat Controller
  • Installation Instructions

Specifications

Parameter Details
Power Consumption70 W
Input Voltage120 V
Dimensions (L × W × H)11.4 × 15.6 × 0.1 in
MaterialSilicone with 3M adhesive
Parallel CapacityUp to 14 mats (max 980 W total)
ApplicationIndoor
InstallationPeel and stick, series-wired
Warranty2 Years

Understanding Your Power Needs

Power Calculation Guide

Sizing Metric Formula & Example
Energy Consumption (Wh) Formula: Watts × Hours
Example: 60W × 4 hrs = 240 Wh
Battery Capacity (Ah) Formula: Watt-hours ÷ System Voltage (V)
Example: 240 Wh ÷ 12V = 20 Ah
Inverter Size (W) Formula: Total Watts × 1.25 (safety margin)
Example: 300W × 1.25 = 375W → Use 400W inverter
Total Load Power (W) Formula: Sum of all appliance watts used simultaneously
Example: Light (10W) + Fan (75W) = 85W
Runtime (hrs) of Battery Formula: (Battery Ah × Voltage) ÷ Total Load (W)
Example: (100Ah × 12V) ÷ 240W = 5 hrs

Find Your Power Match

Need / Application System Recommendation
Basic lighting + phone charging Recommended Battery: 50Ah – 100Ah (12V)
Inverter Size: 100W – 200W
Notes: For small backup setups
Home office (laptop, fan, TV) Recommended Battery: 150Ah – 200Ah (12V or 24V)
Inverter Size: 500W – 1000W
Notes: For moderate usage with 4–6 hours of backup
Home backup (fridge, lights) Recommended Battery: 200Ah+ (24V or 48V recommended)
Inverter Size: 1000W – 1500W
Notes: Ideal for longer backups or heavier loads
Business / shop power backup Recommended Battery: 300Ah+ (48V system)
Inverter Size: 2000W – 3000W
Notes: Suitable for commercial setups or extended power outages

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  • Built for Energy Independence: Whether powering a cabin, prepping for emergencies, or going off-grid, our products are chosen for performance, reliability, and sustainability.

Fortress Power Heat Mat Kit – Add-On Mat

$59.00