FIRMAN · Power station
E201002
4,000 starting watts and 2,000 running watts with battery operation.
$1,699.99
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
- Sold out
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
The FIRMAN Zero-E Energy Storage System delivers clean, emission-free power wherever you need it—perfect for homes, apartments, RVs, and vehicles. With 4,000 starting watts and 2,000 running watts, the Zero-E can power small to medium appliances, electronics, and essential devices. Featuring advanced EPS (Emergency Power Supply) pass-through technology, the Zero-E automatically backs up your fridge, modem, sump pump, or security system during an outage—switching to battery power in milliseconds. Its Lithium Iron Phosphate battery ensures safe operation, 4,000+ charge cycles, and long-term reliability. Need more runtime? Easily expand with slide-on Zero-E batteries—up to 10 add-ons for a total of 11,440Wh capacity. Power up your devices with six 120V outlets, a TT-30R RV outlet, four USB-A ports, two 100W USB-C ports, a 12V cigarette outlet, a 12V DC port, and a Qi wireless charger. Recharge the Zero-E your way: from a standard wall outlet, your vehicle’s 12V socket, or up to 400W of solar input. Whether you're preparing for emergencies or living off-grid, the Zero-E is your all-in-one portable power solution.
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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