FIRMAN · Power station
E201001
4,000 starting watts and 2,000 running watts with battery operation.
$999.99
$1,249.99
Direct price snapshot
Visual spec gallery
Core specifications, simplified.
Up to 4,000 starting watts
4,000W starting
Manufacturer runtime
Runtime varies by load
Operating volume
Silent battery power
Fuel tank
No combustion fuel
42.7
Unit weight
16x10.6x11.2
Unit dimensions
- Warranty
- 3-year warranty
- Certifications
- CARB · CETL · EPA · NOM
- Availability
- Available
Starting
Electric
Power quality
See specifications
Safety
Low-oil status listed below
Electrical
See full specifications
100W × USB-C PD Watts · 15.5W*4 × USB-A 5V 3.1A Watts · 100W*2 × USB-C PD Watts · Yes × USB Output Switch · Yes × USB Indicator · 4 × USB-A 5V 3.1A · 1 × USB-C PD Out 100W · 1 × USB-C PD In&Out 100W · 1 × TT-30R AC Output (120V 30A) · 4 × 5-20R AC Output (120V 20A)
Official product gallery
Product views and FIRMAN infographics.
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Complete specifications
Every official field, organized.
The technical fields below come from FIRMAN’s model-specific specification file. Product photos and infographics come from the official product gallery. Confirm current documentation before purchase.
Manufacturer overview
Meet the ZERO E Lithium Iron Phosphate Portable Power Station, FIRMAN’s first-ever clean energy solution designed for quiet, powerful, and dependable indoor and outdoor power. Built around advanced LiFePO₄ battery technology, ZERO-E delivers long-lasting performance with zero emissions, zero maintenance, and virtually silent operation—making it ideal for home backup, RV use, workspaces, and everyday electronics. Engineered for flexibility, ZERO-E features expandable slide-locking technology that allows you to scale your power setup with up to 10 expansion battery packs, ensuring you’re prepared for anything from short outages to extended power needs. With 1,040Wh of capacity, 2,000W of continuous output, and up to 4,000W peak power, ZERO-E easily handles high-demand devices and appliances. Fast charging keeps you ready at all times—recharge up to 80% in just one hour. Built-in EPS (Emergency Power Supply) functionality provides seamless power transfer during outages, helping prevent unexpected downtime. For added versatility, parallel support allows you to double your available power output when needed. The intuitive control panel gives you full visibility and control, while ZERO-E’s clean-energy design makes it safe for indoor use —free of carbon monoxide and fumes—delivering reliable, eco-friendly power when and where you need it. ZERO-E is equipped with a wide range of outlets to power nearly any device, including four 120V AC outlets, a 30A RV-ready TT-30R outlet, USB-A and high-output USB-C ports, and wireless phone charging—making it a true all-in-one portable power solution. Every ZERO-E Portable Power Station comes ready to use with an AC charging cord, MC4 to EC5 DC charging cable, car charging cable (cigarette lighter to EC5), storage bag, and user manual.
Certifications
- cETLus (UL2743)
- Yes
- UN38.3
- Yes
- FCC SDOC
- Yes
- FCC ID
- Yes
- IC ID
- No
- DOE
- Yes
- CEC
- Yes
- SDS
- Yes
- ROHS
- Yes
Main Unit
- Rated Capacity
- 1040Wh
- Cycle Life
- >4000 complete cycles to 80% capacity
- Storage Temperature
- -20 ~ 40 °C (-4 ~104 °F)
- Discharging Temperature
- -20 ~ 40 °C (-4 ~104 °F)
- Charging Temperature
- 0 ~ 40 °C (32 ~104 °F)
- Scalability
- Up to 11.4kWh
- Shelf Life
- 12 Month
Input
- AC Charging Watts
- 1800W
- MPPT Watts
- 400W
- Car Charging Watts
- 240W
- USB-C PD Watts
- 100W
Output
- AC Rated Output Watts
- 2000W
- AC Peak Watts
- 4000W
- DC 12V Output Watts
- 120W
- USB-A 5V 3.1A Watts
- 15.5W*4
- USB-C PD Watts
- 100W*2
- Wireless Charger Watts
- 10W
Control Panel
- Multifunction LCD Display
- Yes
- Main Power Switch
- Yes
- USB Output Switch
- Yes
- DC Output Switch
- Yes
- AC Output Switch
- Yes
- USB Indicator
- Yes
- Wireless Indicator
- Yes
- DC Indicator
- Yes
- AC Indicator
- Yes
- USB-A 5V 3.1A
- 4
- USB-C PD Out 100W
- 1
- USB-C PD In&Out 100W
- 1
- Wireless Charger (9V 1.1A)
- 1
- 5-15P AC Input (120V 15A)
- 1
- EC5 DC Input (11-70V Max10A)
- 1
- Parallel Port 120V 20A
- Yes
- TT-30R AC Output (120V 30A)
- 1
- 5-20R AC Output (120V 20A)
- 4
- DC5521 Output (12V 10A)
- 1
- Cigarette Lighter 12V Output
- Yes
- Input 15A Circuit Breaker
- Yes
- Output 20A Circuit Breaker
- Yes
- Output 30A Circuit Breaker
- Yes
- Expansion Pack Male Connector
- Yes
- Input Cover
- Yes
- Output Cover
- Yes
Frame
- Handle
- Yes
- Color
- Black
- Wireless Panel Material
- Rubber
Battery Pack&BMS
- Battery Cell Spec
- LI-FUN 25Ah 3.2V
- Battery Type
- LFP
- Pack Configuration
- 13S1P
- Cooling
- NA
- Rated Charging Current
- 35A
- Rated Discharging Current
- 65A
- Overcurrent Protection
- Yes
- Temperature Protection
- Yes
- Short Circuit Protection
- Yes
- Balance Management
- Yes
Inverter
- Bidirectional Inverter
- Yes
- EPS (≤20ms)
- Yes
- Parallel
- Yes
- Constance Power Output
- Yes
- Input Voltage Protection
- Yes
- Input Frequency Protection
- Yes
- Input Over Current Protection
- Yes
- Output Over Current Protection
- Yes
- Output Short Circuit Protection
- Yes
- Temperature Protection
- Yes
- Fan Cooling
- Yes
Packaging
- UPC Code
- 840876105009
- Carton Dimensions
- 19.7x15x16.5
- Carton Weight
- 47.6
- Product Dimensions
- 16x10.6x11.2
- Product Weight
- 42.7
Best-fit uses
- Camping
- Home Projects
- Power Outage
- Tailgate
- Work
Standout features
- Battery-powered operation
- Electric start
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