Fortress Power eStar 12kWh 48V LFP Battery - Home Energy Storage
Fortress Power eStar 12kWh 48V LFP Battery - Home Energy Storage
PayPal Pay in 4 interest-free payments of $1,625.00 on qualifying orders, or monthly financing with PayPal Pay Later.
Available at checkout for eligible US buyers. Subject to approval.
Orders ship via freight or ground from our Louisville, KY warehouse. Tracking provided once your order ships.
Secure checkout · Wire/ACH accepted on quotes · Freight arranged for you
Ships from our Louisville, KY warehouse. Freight details →
- SKU
- FP-ESTAR12
PES Supply is an authorized distributor for Fortress Power. 50,000+ SKUs from 169 authorized brands.
Fortress Power eStar — 12kWh 48V LFP Battery | Home Energy Storage
The Fortress Power eStar is a 12kWh lithium iron phosphate (LFP) battery designed for residential energy storage and backup power. Bridging the gap between the eFlex Max and eVault Max, the eStar delivers substantial capacity in a manageable footprint. With premium LFP cells, an intelligent BMS, and 6,000+ cycles of service life, it provides reliable, scalable energy storage for homes seeking energy independence and resilience.
Key Benefits
- 12kWh Mid-Range Capacity — Ideal balance of capacity and footprint for whole-home backup
- LiFePO4 Chemistry — Safe, thermally stable lithium iron phosphate cells
- 6,000+ Cycle Life — Long service life for years of daily cycling
- Scalable Design — Parallel additional units for expanded storage capacity
- Intelligent BMS — Built-in battery management with cell-level protection
- Wide Inverter Compatibility — CAN/RS485 communication with leading 48V inverters
- Cloud Monitoring Ready — Optional remote monitoring via Fortress Guardian platform
Specifications
| Specification | Detail |
|---|---|
| Usable Capacity | 12 kWh |
| Nominal Voltage | 51.2V DC |
| Battery Chemistry | Lithium Iron Phosphate (LFP) |
| Cycle Life | 6,000+ cycles |
| Charge/Discharge Current | 100A nominal |
| Communication | CAN / RS485 |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
| Warranty | 10 years |
What's in the Box
- Fortress Power eStar 12kWh Battery
- Communication cable
- Mounting hardware
- User manual
| SKU | FP-ESTAR12 |
|---|---|
| Manufacturer | Fortress Power |
No documents available for this product. Contact us to request documentation.

