Certification: Certification CARB Certification cETL Certification EPA
Model: e201002

Zero-E System plus Expansion Battery

$1,999.99 USD
Free shipping to the contiguous United States

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.

Zero E Expansion Power Pack +1000

Power Pack +1000

Portable Power Station

Features

In FIRMAN, we are always striving for the best in portable powerhouses. We take pride in our generators' impeccable performance and design. 

The ZERO-E is packed with features that prepare you for almost any situation you find yourself in, indoors. 

We are proud to have designed a portable power station that is not only highly reliable, ultra-quiet, and incredibly safe, but is also great for the planet we live in.

Charge Up To 80% of the Battery In Just 1 Hour

Double Your Power Supply With Parallel Support

With An Easy-To-Use Control Panel 

No More Unexpected Blackouts With Built-In EPS

More Than 4000 Charge Cycles to 80%+ Capacity

Flexible Design To Allow Scaling Up To 10 Expansion Packs

1040WH

Capacity

1 Hour to 80%

Quick Charge

2000W

Continuous Power

4000W

Peak Power

What's Included ?

also in the box

AC Charging Cord

Manual Included

MC4 to EC5 DC Charging Cord

Storage Bag

Car Charging Cable (Cigarette Lighter to EC5)

EXPERIENCE

ZERO-E’s easy-to-use control panel puts you in control. With zero required maintenance, effortlessly enjoy one of the most advanced portable power stations for almost any task indoors.

HIGHEST SAFETY STANDARDS

At FIRMAN, we never compromise on safety in bringing you the most advanced generators in the industry. 

The ZERO-E portable power station is a safe yet powerful for most of your indoors power needs — with zero emissions and zero carbon monoxide. 

CHARGE & DISCHARGE

FIRMAN’s supercharging technology allows you to charge the ZERO-E up to 80% in just ONE hour. The ZERO-E can be charged using any one of the following:
- 120 Volt Power from a house or a generator
- Up to 400 Watts of Solar Power
- With 12 Volt Power from a vehicle
- USB-C (Bidirectional x 1) charging 5V⎓3A/9V⎓3A/12V⎓3A/15V⎓3A/20V⎓4.95A 99W

Charge almost any device with a large selection of outlet options:
- [4] 120 volt AC outlets
- [1] 30 AMP RV Ready Outlet
- [4] USB-A outlets
- [2] 100 Watt USB-C Outlets
- Wireless Phone Charging
- USB-C power delivery input and output
- RV-ready with TT30R outlet

Eco-Friendly

With zero emissions, using extra power will never be a guilty pleasure, no matter what the job or circumstance.

Reliable, Durable Battery Performance

Charge up to 80% of the battery in an hour. The ZERO-E’s LiFePO4 battery chemistry is built to give you over 4000 charge/discharge cycles (vs. 500 cycles with a competitor's NMC battery).

Versatile Outlet Configuration

[4] 120 volt AC outlets, [ 1] 30 AMP RV Ready Outlet, [4] USB-A outlets, [2] 100 Watt USB-C Outlets, ​​Wireless Phone Charging, USB-C power delivery input and output, RV-ready with TT30R outlet

Expandable Power

The ZERO-E is easily stackable to up to 10 extension power packs — the only ESS unit in the market with interlocking slide battery attachments. So you can have the power you need for almost any task indoors.

Ultra-Quiet Operation

The most advanced battery technology on the market - so powerful yet quiet. You won’t even believe it’s running.

Eco-Friendly

With zero emissions, using extra power will never be a guilty pleasure, no matter what the job or circumstance.

Reliable, Durable Battery Performance

Charge up to 80% of the battery in an hour. The ZERO-E’s LiFePO4 battery chemistry is built to give you over 4000 charge/discharge cycles (vs. 500 cycles with a competitor's NMC battery).
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Utility

At FIRMAN, we are constantly pushing the boundaries, so that you can do the same in every aspect of your life. This is strong, safe, and eco-friendly power you can take almost anywhere.

Designed to serve you

Gaming

RV & Camping

Home Backup

Computer 200W

Console 150W

TV 58.6W

Mini Fridge 75W

Speaker 100W

Fan 60W

Portable A/C 1200W

Furnace Fan 80 to 150watts/hour

Lights 18W

Fan 60W

Cell phone 7W

CPAP 50W

Refrigerator 200W

Microwave 1700W

Computer 450W

Lamps 45W

TV 85W

Internet 15W

Specifications

As one of the world's largest manufacturers of portable generators, we pride ourselves on the unparalleled quality of our products. The ZERO-E is packed with features that prepare you for almost any situation or circumstance you find yourself in.

cETLus (UL2743) Yes
UN38.3 Yes
FCC SDOC Yes
FCC ID Yes
IC ID No
DOE Yes
CEC Yes
SDS Yes
ROHS Yes
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
AC Charging Watts 1800W
MPPT Watts 400W
Car Charging Watts 240W
USB-C PD Watts 100W
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
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
Handle Yes
Color Black
Wireless Panel Material Rubber
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
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
UPC Code 840876105009
Carton Dimensions 19.7x15x16.5
Carton Weight 47.6
Product Dimensions 16x10.6x11.2
Product Weight 42.7

MORE POWER MADE EASY, ON-DEMAND

The ZERO-E’s expandable slide locking technology allows you to scale up to 10 expansion packs to power any circumstance or adventure.

Manuals

E201001 Operators Manual (English)

download

E201001 Operators Manual (French)

download

E201001 Operators Manual (Spanish)

download

E201001 QSSG (English)

download

E201001 QSSG (French)

download

E201001 QSSG (Spanish)

download

Watch

Zero-E Highlights

Watch

Zero-E Home Backup Power

Watch

Zero-E Outdoors

Watch

Zero-E Music Studio

Watch

Zero-E Gaming

Need more answers?

  • The ZERO E provides 1040 Watt Hours so for example you could power a device that requires 100 watts for a little over 10 hours.
  • You can add up to 10 Power Pack +1000 batteries per Zero E and you can combine up to two Zero E's in Parallel
  • The Zero E can be discharged down to 0 degrees F and charged at temperatures as low as 32 degrees F
  • The Zero E should be protected from the elements. You can safely use the Zero E indoors, in an RV or Camper, in a tent while camping or even inside a vehicle.
  • No, the Zero E is not waterproof
  • The Zero E produces up to 2000W continuous and 4000W surge
  • Camping, Power Outages, as a EPS (Emergency Power Supply), Sports, Small Businesses
  • The Zero E weights 39.7 lbs
  • "Watt Hours" defines the measurement of the capacity of the Zero E. Each Zero E provides 1040 Watt Hours. That means if you have a device that requires 100 watts the Zero E will power it for just over 10 Hours. Each additional Zero E Battery provides another 1040 Watt Hours. So a Zero E with one additional battery would power a 100W device for nearly 21 hours.
  • View Buying Guide

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