Fortress eBoost 16 Adds 16kWh of Scalable Home Storage
The Fortress Power eBoost 16 is a 16kWh, 51.2V lithium iron phosphate battery built for whole-home backup and light commercial storage. Each module has built-in heating and an IP65 enclosure for all-weather installs, and up to 24 units can run in parallel for 384kWh. Paired with an Envy Duo 21 or any Envy-series inverter and the eWay wireway, it forms a fully integrated Fortress energy storage system.
Why You'll Love The Fortress eBoost 16 Battery
Big capacity per unit. 16.077kWh and 314Ah in one module saves wall space and installation time.
Serious power. 180A charge and 250A discharge in closed loop, with 16kW surge for 10 seconds.
Built for any climate. IP65 rated with internal heating elements and a -4 to 140°F operating range.
Long life. 8,000 cycles to 70% end of life, backed by a 10-year warranty.
Your life, with the Fortress eBoost 16 Battery
The grid goes down on a freezing night and your heat pump keeps running. The battery sits outside on its pad, warming itself as needed, and your home carries on as if nothing happened.
The Fortress eBoost 16 Battery in a nutshell
16kWh LFP module
Tier-1 prismatic 16-cell LFP, 51.2V nominal, 314Ah.
Scale to 384kWh
Up to 24 units in parallel, with CAN communication between batteries.
eWay integration
Works with the eWay wireway for clean AC/DC wiring; eWay and eWay Lite are sold separately.
Flexible mounting
Floor standing or wall-hanged installation.
Fortress eBoost 16 Battery specifications
Battery
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Model: eBoost DC Energy Storage System 16 P1
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Cell type: Tier-1 prismatic 16-cell LFP
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Nominal capacity: 314Ah
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Nominal energy: 16.077kWh (at 77°F, beginning of life)
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Nominal voltage: 51.2V
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Operating voltage range: 41.6 to 57.6V
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Re-charge / cut-off voltage: 49V / 41.6V
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Bulk / absorption charge: 55.2V
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Closed-loop charge / discharge: 180A / 250A
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Max charge / discharge: 314A for 10 s
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Surge discharge power: 16kW for 10 s
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Max short circuit: 2000A, 17 ms
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Cycle life: 8,000 cycles at 70% end of life
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Max units in parallel: 24
General
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Weight: 304.2 lb (138 kg)
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Battery dimensions (W x D x H): 22.28 x 11.27 x 37.81 in (566 x 286 x 960.2 mm)
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eWay dimensions (W x D x H): 22.84 x 9.52 x 10.18 in (580 x 241.9 x 258.5 mm)
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Operating temperature: -4 to 140°F (-20 to 60°C); performance degrades above 104°F
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Ingress protection: IP65
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Communication: PCS CAN/RS485; parallel CAN
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Altitude: Under 3,000 m
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Mounting: Floor standing, wall-hanged
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Warranty: 10 years
Standards
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Safety: UL1973, ANSI/CAN/UL9540:2023, UL9540A
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Listings: CEC, LUMA, oGPE
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Transportation: UN38.3
Let the experts help you find your perfect Fortress eBoost 16 Battery setup
How many eBoost units, and which eWay, does your home need? Send us your loads, backup goals and inverter choice and we will size the system with you.
Email support@kratopower.com or call +1 888-855-7286.
Fortress eBoost 16 Battery documents and materials
Safety disclaimer: Lithium battery systems store large amounts of energy and are heavy. Installation should be carried out by a licensed electrician in line with local electrical and fire codes and the manufacturer's manual. You use this product at your own risk. The content on this page is general product information, not professional or medical advice. If you have any doubt, consult a qualified professional.
