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Fortress Power eFlex Max 5.4kWh 48V LFP Battery - Modular Storage
Fortress Power eFlex Max 5.4kWh 48V LFP Battery - Modular Storage
Regular price
$3,000.00 USD
Regular price
Sale price
$3,000.00 USD
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Specification
- SKU:FP-EFLEXMAX54

Product Description
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Fortress Power eFlex Max — 5.4kWh 48V LFP Battery | Modular
The Fortress Power eFlex Max is a 5.4kWh lithium iron phosphate (LFP) battery module designed for residential and commercial energy storage. Built with premium LFP cells and an intelligent BMS, the eFlex Max delivers 6,000+ cycles of reliable performance. Its modular design allows stacking up to 6 batteries for 32.4kWh of total capacity, and it communicates seamlessly with leading 48V inverters via CAN/RS485.
Key Benefits
- 5.4kWh Modular Capacity — Stack up to 6 batteries for 32.4kWh of scalable storage
- LiFePO4 Chemistry — Inherently safe lithium iron phosphate with superior thermal stability
- 6,000+ Cycle Life — Decades of daily cycling with minimal capacity degradation
- Intelligent BMS — Built-in battery management system with active cell balancing
- Plug-and-Play Installation — Simple parallel connection — no complex programming required
- Wide Inverter Compatibility — CAN/RS485 communication with leading 48V hybrid inverters
- Indoor & Outdoor Rated — Flexible installation in protected environments
Specifications
Specification Detail Usable Capacity 5.4 kWh Nominal Voltage 51.2V DC Nominal Capacity 105Ah Battery Chemistry Lithium Iron Phosphate (LFP) Cycle Life 6,000+ cycles Charge/Discharge Current 50A / 100A peak Scalable Up to 6 units (32.4kWh) Communication CAN / RS485 Operating Temperature -4°F to 122°F (-20°C to 50°C) Dimensions 18.5 × 7.5 × 19.7 in (approx.) Weight ~110 lbs (50 kg) Warranty 10 years What's in the Box
- Fortress Power eFlex Max 5.4kWh Battery
- Communication cable
- Parallel connection cable
- User manual
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