This is the Heat Mat Kit designed for Fortress Power DuraRack battery installations, used to maintain safe operating temperatures for the battery in cold-weather environments.
Cold ambient temperatures reduce charge acceptance and can trigger low-temperature charge inhibits on lithium iron phosphate (LFP) battery packs. A heat mat kit matched to the specific rack design helps maintain the battery within its intended operating temperature range. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
Critical Fitment & Requirements
- Designed specifically for the Fortress Power DuraRack battery system.
- SKU: HEATMATKITDURA — single-variant kit, no size or voltage options listed by the manufacturer.
- NOT confirmed for use with eFlex MAX, eVault MAX, eForce, eBoost, eSpire Mini, eSpire 306, eSpire Nano, Avalon, Flextower, or Guardian battery enclosures [NEEDS VERIFICATION].
- Electrical ratings (voltage, wattage, amperage) for the heat mat element were not provided in manufacturer data — do not wire this kit until you confirm ratings via the Resources tab.
Heat mat elements draw continuous low-level current whenever ambient temperature drops below the battery's charge-inhibit threshold, and an undersized or shared circuit breaker can nuisance-trip during cold-start conditions. Confirm the mat's actual current draw with a clamp meter before tying it into an existing DC or AC auxiliary circuit — this prevents overloaded circuits and repeated fault codes on the battery's BMS. Because the manufacturer data for this kit does not list voltage or wattage, verify the printed rating plate on the mat itself, or the datasheet under the Resources tab, before terminating any connections. Size the supply conductor and breaker per NEC ampacity tables once the actual load is known, not by assumption.
Key Benefits
- Purpose-built for the DuraRack battery enclosure — not a universal heat mat.
- Supports LFP battery low-temperature charge performance.
- Backed by Fortress Power manufacturer documentation and warranty coverage.
- Simplifies cold-climate installation planning for DuraRack-based systems.
| Spec | Value | Unit |
|---|---|---|
| Compatible Battery System | DuraRack | — |
| SKU / Part Number | HEATMATKITDURA | — |
| Price | 152.99 | USD |
| Voltage Rating | [NEEDS VERIFICATION] | — |
| Wattage | [NEEDS VERIFICATION] | — |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
- Fits: Fortress Power DuraRack battery system.
- Does NOT fit: eFlex MAX, eVault MAX, eForce, eBoost, Avalon, Flextower, Guardian, eSpire Mini, eSpire 306, or eSpire Nano systems, per available manufacturer data [NEEDS VERIFICATION].
- Does NOT include documented voltage/current ratings in the source data — confirm before electrical connection.
| Compliance Item | Value |
|---|---|
| UL Listing | [NEEDS VERIFICATION] |
| NEC Ampacity Reference | [NEEDS VERIFICATION] |
| IP Rating | [NEEDS VERIFICATION] |
FAQ
What battery system is this Heat Mat Kit designed for?
This kit is designed for the Fortress Power DuraRack battery system, per the manufacturer's model designation.
Will this Heat Mat Kit work with other Fortress Power battery models?
The manufacturer data provided does not confirm compatibility with other Fortress Power battery lines such as eFlex MAX, eVault MAX, or eForce. Do not assume cross-compatibility without checking the manufacturer's Resources tab.
What electrical specifications does this Heat Mat Kit carry?
Voltage, wattage, and current draw specifications for this kit were not included in the manufacturer data provided [NEEDS VERIFICATION]. Refer to the Resources tab for full specifications before wiring.
Does this kit include installation hardware?
Included hardware and mounting details were not specified in the manufacturer data provided [NEEDS VERIFICATION].
Warranty & Registration
Fortress Power provides warranty documentation for DuraRack-related products, including an eFlex MAX (DuraRack) warranty document referenced in manufacturer resources. Specific warranty term length and coverage details for the Heat Mat Kit itself were not included in the provided data [NEEDS VERIFICATION]. Refer to the "Resources (System Manuals and Warranty)" Tab above for the full warranty document and registration process.
