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Fortress Power eBoost 16kWh LFP Battery

Fortress Power eBoost 16kWh LFP Battery
$4,299.00 - $4,299.00
$4,299.00
$4,299.00 - $4,299.00
$4,299.00
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16.08kWh · 51.2V · Includes eWay Lite

Fortress Power eBoost 16kWh LFP Battery

The eBoost delivers 16.08kWh of usable energy from a 314Ah, 51.2V Tier-1 prismatic LFP pack, with a 250A continuous discharge rating and built-in heating for cold-weather reliability.

This listing includes the eWay Lite wireway, a simplified single-battery connection built for standalone backup systems, cabins, sheds, and RVs rather than a system you plan to expand later.

Fortress Power eBoost 16kWh LFP Battery
10-Year Warranty
Lowest Price Guarantee
Authorized Fortress Power Dealer
Free Shipping
0% APR Financing
Expert Support: (303) 876-7654

Why the eBoost

16.08kWh Usable Energy

314Ah at 51.2V nominal delivers 16.08kWh of usable energy from Tier-1 prismatic LFP cells rated for 8,000 cycles to 70% end of life.

250A Continuous Discharge, 16kW Surge

180A continuous charge and 250A continuous discharge, with a 16kW surge rating for 10 seconds to cover motor-start and inrush loads.

Integrated Heating Elements

Built-in heating elements extend reliable charging into cold-weather conditions across a -4°F to 140°F ambient range.

Stack Up to 24 Units (384kWh)

Parallel up to 24 units for up to 384kWh in one system — room to grow from a single battery into a much larger installation.

Includes the eWay Lite Wireway

Ships with the eWay Lite, a simplified single-battery wireway with a 250A battery terminal, built-in power switch, and side-mounted inverter connection — sized for smaller backup systems, cabins, sheds, and RVs.

Guardian-Compatible Monitoring

Works with Fortress Power's Guardian monitoring gateway for remote system visibility.

What's Included

What's included with the Fortress Power eBoost 16kWh

What You Get

  • 1 × Fortress Power eBoost 16kWh LFP Battery (314Ah, 51.2V)
  • 1 × eWay Lite wireway (250A battery terminal, integrated power switch)
  • Documentation

Compatible inverter sold separately.

Full Specifications

Model Fortress Power eBoost 16kWh
Nominal Voltage 51.2V (range 41.6–57.6V)
Capacity 314Ah
Usable Energy 16.08kWh
Battery Chemistry Tier-1 Prismatic LFP (16-cell)
Charge/Discharge (Closed-Loop) 180A / 250A
Surge Discharge 16kW for 10 seconds
Short-Circuit Rating 2,000A for 17ms
Cycle Life 8,000 cycles to 70% end of life
Ambient Temperature Range -4°F to 140°F (-20°C to 60°C)
Heating Integrated heating elements for cold-weather operation
Ingress Protection IP65
Weight 304.2 lb
Dimensions 22.28"D × 11.27"W × 37.81"H
Communication PCS: CAN/RS485; Parallel: CAN; Guardian monitoring compatible
Max Parallel Up to 24 units (384kWh total)
Compatible Inverters Envy Duo 21, Envy True 12kW, Envy 10kW, Envy 8kW
eWay Lite Included Single-battery/single-inverter wireway, 250A battery terminal, integrated power switch, side-mounted inverter connection — no integrated rapid shutdown and not intended for future system expansion
Warranty 10 years
Certifications UL1973, UL9540:2023, UL9540A, UN38.3
Round-Trip Efficiency Not published by Fortress Power for this model

Authorized Fortress Power Dealer

We sell genuine Fortress Power products backed by Fortress Power's own warranty.

Lowest Price Guarantee

Find it cheaper from another authorized dealer? Call (303) 876-7654 before you order.

Real Support, Not a Ticket Queue

Sizing a system or checking inverter compatibility? Call (303) 876-7654 and talk to a person.

Fortress Power eBoost 16kWh LFP Battery: Frequently Asked Questions

What's included with this battery — do I need to buy a wireway separately?
No — this listing includes the eWay Lite, a simplified single-battery wireway with a 250A battery terminal and built-in power switch. It's sized for smaller systems like a backup circuit, cabin, shed, or RV, not for future expansion.
Can I expand this system later with more batteries?
The eWay Lite included here isn't designed for future expansion — Fortress Power recommends it specifically for standalone, single-battery setups. If you're planning to grow the system, the full eWay (not the Lite version) supports expansion instead. Call (303) 876-7654 before ordering if you think you'll add capacity later.
Does the eWay Lite include rapid shutdown?
No — Fortress Power notes the eWay Lite lacks an integrated rapid shutdown device, unlike the full eWay. Confirm your local code requirements before installation — call (303) 876-7654 if you need guidance.
What inverters does this work with?
Fortress Power's Envy Duo 21, Envy True 12kW, and Envy 8kW/10kW inverters. Confirm compatibility with your specific setup — call (303) 876-7654 if you're not sure.
Is the eWay Lite compatible with the eForce line's eWay?
No — Fortress Power specifies that the eBoost's eWay and the eForce line's eWay are separate, non-cross-compatible parts. Don't mix them between systems.
How many of these can I connect together?
Up to 24 units in parallel for up to 384kWh total. Call (303) 876-7654 and we can help you plan a specific system size.
Can I install this myself, or do I need an electrician?
Fortress Power's equipment is designed for professional installation. We strongly recommend a licensed electrician or solar installer for any battery, inverter, or enclosure installation — call (303) 876-7654 if you need a referral in your area.
Do you offer financing or price matching?
Yes. We offer 0% APR financing options through Affirm at checkout, and our Lowest Price Guarantee applies — if you find this product cheaper at another authorized Fortress Power dealer, call us at (303) 876-7654 before you order and we'll take care of it.
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