Frequently Asked Questions

Boost Charger


Where are your products manufactured?
FreeWire is located in San Leandro, California. As part of a disadvantaged community (DAC), FreeWire helps create sustainable jobs that advance the future of transportation.

Do you offer financing?
FreeWire has partnered with Macquarie Capital to offer competitive financing for qualified customers allowing site hosts to provide a premium service with no upfront cost. Financing covers everything you need to launch an EV charging project, including capital equipment, shipping, installation, maintenance, warranty, and software costs. Please contact a FreeWire sales representative for more information at

Where are FreeWire products available?
FreeWire products are primarily available in the United States, with certain exceptions. Contact a sales representative for more information at

Can I rent FreeWire products?
FreeWire units are for sale only. Financing is available.

What kind of batteries are used in FreeWire products?
Mobi and Boost Charger products use lithium-ion (Li-ion) batteries. The exact chemistry is Lithium Nickel Manganese Cobalt Oxide. FreeWire uses the same type of cells found in leading EVs. Our batteries are produced in the United States.

Will purchasing a Mobi or Boost Charger for my building contribute to LEED certification?
Yes, FreeWire EV chargers qualify for LEED points like other EV charging installations.

Boost Charger

What are some key differences between Boost Charger and other direct current fast chargers (DCFCs)?

  1. Boost Charger has an integrated lithium-ion battery pack with 160 kWh of total energy storage capacity.
  2. Boost Charger can provide fast charging to two EVs simultaneously.
  3. Boost Charger outputs 120 kW to an EV while drawing up to 27 kW from the grid. Boost Charger is compatible with low-voltage input, using a 50-150 A circuit, significantly reducing peak energy demand.
  4. The integrated design of Boost Charger results in an up to 18x smaller footprint compared to traditional fast chargers.

Visit the Boost Charger web page or contact a FreeWire representative for more information at

What’s the charging speed of Boost Charger?
Boost Charger has a maximum output per connector of 120 kW, delivering approximately 120 miles in 15 minutes. A single EV can charge at 120 kW, or two EVs can charge simultaneously at 60 kW.

How many EVs can be charged per day with Boost Charger?
Boost Charger discharges up to 120 kW of power to EVs primarily from its 160 kWh integrated energy storage, recharging from the grid at 20 kW. The total number of EVs each Boost Charger can charge per day depends on a number of factors, including the EV’s power requirements, frequency, and duration of charges on a given day. Boost Charger is capable of providing over 2,000 miles (3,200 km) of range in a day, enough to top off 20-40 EVs. If the onboard battery is depleted, Boost Charger still passes through electricity from the grid. View a demonstration of Boost Charger dynamic charging in this video.

Can Boost Charger operate without cellular connectivity?
FreeWire’s standard Boost Charger requires cellular or ethernet connectivity to enable payment functionality and monitor system health. Contact a FreeWire representative to discuss options available at your site at

As a Boost Charger owner, how do I control charger pricing?
FreeWire customers are in full control of pricing, with the flexibility to implement rules to promote dwell time or incentivize driver behavior within applicable state guidelines. Pricing rules can be customized through the selected charging network, and easily managed through an online interface. Currently, 30 states allow kWh pricing instead of charging per-minute, as kWh is widely viewed as the fairest and straightforward method. Consult this infographic to see if your state allows kWh pricing.

What data and information are accessible for owners or site hosts from Boost Charger?
Boost Charger site hosts have access to detailed data on charging sessions, utilization patterns, revenue, and environmental impact through emission reduction calculations. These tools are available via the network provider’s web portal.

How long does it take to fully recharge Boost Charger from empty?
Boost Charger fully recharges in approximately 8 hours.

What incentives are available in my state?
Many states offer significant incentives for EV chargers. Contact a FreeWire sales representative to learn how state and federal incentives can reduce your Boost Charger procurement cost.

What electrical capacity or service is needed on site for Boost Charger?
Unlike most traditional DCFCs that would require high voltage (480 V) infrastructure, Boost Charger is compatible with standard split-phase 240 V connections and three-phase 208 V connections. Boost Charger can be powered with lower electrical input levels if higher electrical input isn’t available. For maximum power to recharge the Boost battery, the 240 V installation would use a 150 amp circuit, and the 208 V would use a 100 amp circuit.

How much ground space is required?
Boost Charger occupies a 40″ x 43″ footprint. Additional space may be required for bollards or other protection based on site owner preference or local permitting requirements.


What are the different Mobi products?
FreeWire offers two Mobi models, Mobi EV Charger and Mobi Gen. Mobi EV Charger is designed for EV charging specifically, and Mobi Gen is designed as a generator replacement product though you can also use it to charge EVs.

What is Mobi?
Mobi is a battery-integrated power product that can be recharged from the grid and driven to wherever power is needed.

Are Mobi products emission-free?
Our products are 100% emission-free and do not emit any GHGs, NOx, or SOx.

Is Mobi available for residential use?
Mobi is designed for commercial and industrial use.

How do you recharge a Mobi, and how long does it take?
Mobi is recharged using the provided charge adapter from either a 120 V or 240 V outlet. Mobi can also be directly recharged by a Level 2 (J1772) EV charging connector. Mobi is recharged in 12 hours using a 240V outlet or J1772, or twice as long if using a 120V connection.

How big is a Mobi?
Mobi is approximately 33″ W x 52″ L x 42″ H and weighs around 1,900 pounds.

Is Mobi equipped with data reporting functionality?
FreeWire provides monitoring and data reporting for all Mobi products through FreeWire’s AMP web portal and mobile application. Data includes daily product performance, usage, and location information.

How do I move Mobi to another location?
Mobi is equipped with an integrated power drive train and a joystick controller for easy maneuverability over short distances (less than one mile). Mobi can be placed in a van or on a flat-bed truck or trailer for longer distance travel.

Can I use Mobi indoors?
Yes. Zero emissions and minimal noise means Mobi is perfectly suitable for indoor use.

Mobi EV Charger

How are Mobi EV Chargers different from other EV Chargers?
Mobi EV Chargers are mobile charging stations free to move from one parking spot to the next. Instead of the EV going to the charging station, the charging station can be moved to the EV.

How many EVs can be charged with one Mobi EV Charger?
The 80kWh Mobi EV Charger can deliver approximately 320 miles of range to EVs before needing to be recharged. Most workplaces offer employees 25-50 miles per Mobi charging session, equaling 8-12 cars per day.

Which EVs can I charge with Mobi EV Charger?
Mobi EV Chargers are compatible with all EVs that have a J1772 input. Mobi EV Charger can charge Tesla vehicles with the use of an adapter.

How fast does the Mobi charge a car?
Mobi EV Charger can charge two cars simultaneously at 5.5 kW each. At that rate, each vehicle receives approximately 20 miles of charge in an hour.

Mobi Gen

What is the difference between a diesel or gas generator and a Mobi Gen?
Mobi Gen is a zero-emission, quiet alternative to diesel and gas generators. It is also more efficient because the system delivers the exact amount of power being drawn by the devices plugged in. Mobi is also equipped with a power drive system for simple relocation.

What devices can I power with Mobi Gen?
Mobi Gen can deliver power to a wide range of devices. Anything with a standard 120 V wall plug is compatible. In addition to the 120 V outputs, Mobi Gen is equipped with a variety of 240 V outputs. It can also be equipped with a charging cable to charge an EV. To assess the compatibility of your device, refer to the Mobi Gen technical specs. Check the input connection and the power draw of the device.

How long can I power my devices?
The runtime on Mobi Gen depends on the combined power draw of connected devices. An 80 kWh Mobi Gen can power a single television for more than one week. However, if the same Mobi Gen powers a combination of devices with a power draw totaling 11 kW, the runtime will be approximately one working day.

What is the output power of Mobi Gen?
Mobi Gen supports a continuous output power of 11 kW.

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