Portable Level 3 EV Charger 20kW 10kWh – Roadside Rescue
True Off-Grid Emergency EV Charging with Built-in Battery
Unlike fixed DC fast chargers, our compact portable mobile EV fast DC charger integrates a 10kWh built-in battery, allowing you to deliver Level 3 charging anywhere – no grid connection required. Perfect for road rescue, roadside assistance, and emergency EV recovery.
Key Features – Why Choose This Mobile DC Fast Charger
- Level 3 DC Fast Charging – 20kW output adds up to 80–120 km of range per hour of charging.
- 10kWh Built-in Battery – True off-grid operation. No need to connect to a power source during rescue.
- Compact & Portable – Lightweight design (under 130kg) with wheels and handles for one-person transport.
- Emergency Road Rescue Ready – Works with all EVs (CCS1, CCS2, CHAdeMO ,GBT, and Tesla with adapter).
- Rugged & Weather-Resistant – IP54 rated for roadside conditions.
Not a Normal DC Fast Charger – Built Specifically for Road Rescue
Compact portable level 3 mobile EV fast dc charger 20kw 10kwh for road rescue
Most DC fast chargers require a permanent grid connection (480V three-phase). This is a mobile Level 3 EV charger with a battery inside. It’s designed for roadside rescue operators, tow truck companies, and emergency response teams who need to charge EVs anywhere, anytime.
Use Cases – Where This Portable EV Fast Charger Excels
Roadside Rescue & Towing – Get a stranded EV back on the road in 15–30 minutes.
Fleet Emergency Support – Mobile charging for delivery vans, taxis, and service vehicles.
Remote Locations – No grid? No problem. The built-in battery delivers instant Level 3 power.
Events & Temporary Charging – Concerts, marathons, or disaster relief zones.
Technical Specifications
| Parameter | Value |
|---|---|
| Output Power | 20kW DC |
| Battery Capacity | 10kWh (LFP, 5000+ cycles) |
| Charging Standard | Level 3 (CCS Combo 1/2) |
| Input | Grid AC or built-in battery (off-grid mode) |
| Recharge Time (unit itself) | 2.5 hours @ 7kW AC sigle phase 120vac, 230vac,240v split phase |
| Dimensions | 1010mm*630mm*650mm |
| Weight | 130 kg |
| Operating Temp | -20°C to 50°C |
| Application | Roadside rescue, tow trucks, fleet emergency, event charging |
How It Works – Simple Road Rescue Workflow
- Arrive – Drive your rescue vehicle with the charger onboard.
- Deploy – Roll out the compact unit to the stranded EV.
- Connect – Plug into the EV’s CCS port.
- Charge – Deliver 20kW DC fast charge from the internal 10kWh battery.
- Return – Recharge the unit back at your depot via standard AC outlet.
The EGbatt Portable 11kW DC Fast Charger (Built‑in Battery, Off‑Grid Ready). When an EV runs out of charge on a highway or remote road, tow trucks equipped with this 11kW off‑grid charger can deliver a life‑saving 10–15 minute boost. The built‑in 11.264kWh battery provides 5–8 kWh of usable energy – enough to add 30–50 km of range, allowing the driver to reach the nearest public charger. No grid access, no generator noise, and no waiting for a flatbed tow.
Technical Comparison – Battery-Integrated vs Grid-Dependent
| Feature | Standard DC Fast Charger | Our Portable Level 3 Charger |
|---|---|---|
| Grid required | Yes (480V 3-phase) | No (built-in 10kWh battery) |
| Mobility | Fixed installation | Compact, portable, wheels |
| Road rescue use | Impossible | Designed for roadside rescue |
| Weight | 500+ kg | 130 kg |
| Start time | Weeks (permits) | Immediate |
Charging Characteristics
| Parameter | Specification |
|---|---|
| Input Characteristics | |
| DC Input – Voltage Range | 500V – 750V |
| DC Input – Current | 0 – 22A |
| DC Input – Power Factor | ≥0.99 |
| AC Input – Voltage Range | 260V – 485V |
| AC Input – Current | 0 – 30A |
| AC Input – Power Factor | ≥0.99 |
| Operating Frequency | 45 – 65 Hz |
| Output Characteristics (Battery Input Mode) | |
| Max Power | 11kW |
| Voltage Range | 150V – 750V |
| Output Current | 0 – 50A |
| Output Characteristics (AC Input Mode) | |
| Max Power | 11kW (customizable) |
| Battery Recharging Characteristics | |
| Max Recharge Power | 11kW |
Battery Pack Electrical Performance
| Parameter | Specification |
|---|---|
| Basic Performance | |
| Battery Capacity | 10 kWh |
| Charging Performance | |
| Operating Voltage Range | 500V – 750V |
| Max Continuous Charge Rate | 1C |
| Max Allowable Charge Temperature Range | -10°C to 55°C (power derating 45–55°C) |
| Optimal Charge Temperature Range | 15°C – 30°C |
| Discharging Performance | |
| Max Continuous Discharge Rate | 2C |
| Operating Voltage Range | 500V – 750V |
| Max Allowable Discharge Temperature Range | -20°C to 65°C (power derating 55–65°C) |
| Optimal Discharge Temperature Range | 15°C – 30°C |
| Standard Cycle Life | Ambient temperature 20–30°C, relative humidity 60% ±25% RH 1C standard charge to 3.65V, 1.0C standard discharge to 2.5V 5,000 cycles – capacity retention ≥80% after 4,000 cycles |
Frequently Asked Questions
Q: Can this charger fully empty my EV battery?
A: It adds 8–12 kWh of energy (10kWh usable), enough for 60–100 km of driving – ideal for reaching the next fixed charger.
Q: How many rescues per charge?
A: One full internal battery gives 1–2 standard roadside rescues (10–20 minutes each). For heavy use, keep a spare unit or recharge after each rescue.
Q: Is it truly “Level 3”?
A: Yes. 20kW DC is classified as Level 3 (DC fast charging). It’s not a Level 2 AC charger.
Q: What’s included in the box?
A: Charger unit, CCS charging cable, AC recharge cable, user manual, wheel kit.
Use Cases for the Portable 11kW DC Fast Charger (Built‑in Battery, Off‑Grid Ready)
Courier companies (Amazon DSP, FedEx, DHL) operating electric vans often face depot power capacity limits. Our portable unit can be charged overnight via any 11kW AC outlet (260–485V wide range), then rolled to any van in the lot for a quick 11kW DC top‑up. One unit serves 3–5 vans per day, deferring expensive grid upgrades.
Concerts, marathons, and county fairs often have zero EV charging infrastructure. Our IP54‑rated charger works in dust, rain, and heat (0–55°C). Place it near VIP parking, media zones, or shuttle EV pick‑up points. The 11kW output matches typical event dwell time (30–60 min), giving attendees a meaningful range boost while they enjoy the event.
Most dealerships have only Level 2 AC chargers (slow). To demonstrate a DC fast charging feature or quickly recharge test‑drive vehicles, our portable unit is ideal. No electrician, no permit, no 480V three‑phase connection. Just plug into an existing 240V outlet overnight, then fast‑charge EVs on the lot the next day.
Airports use hundreds of electric baggage tractors, belt loaders, and passenger shuttles. Fixed chargers consume valuable gate space. Our compact unit (1075×630×697mm) can be wheeled to any GSE parked on the apron. The built‑in battery eliminates cable tripping hazards and works in ‑20°C to 65°C (with derating above 55°C). Support for CAN and OCPP allows integration with airport telematics.
Film sets are often miles from the nearest grid connection. Generators are loud and produce fumes. Our silent, emission‑free charger can recharge electric picture cars, honeywagons, or crew shuttles without interrupting audio recording. Use AC input from a portable generator (if needed) or solar‑charged battery packs.
Many rural communities, islands, and mountain lodges lack DC fast chargers. Our unit can be shared among neighbors or rented out by a local store. Charge the unit via any available AC source (including diesel gen‑set or solar inverter), then fast‑charge EVs on demand. The 4000‑cycle LFP battery ensures years of daily use.
After hurricanes, earthquakes, or floods, grid power can be out for weeks. NGOs and military units use our charger to keep electric ambulances, communications vehicles, and supply trucks running. The unit withstands humidity (60%±25% RH non‑condensing) and can be recharged from any available source – solar trailers, portable generators, or undamaged building outlets.
Rental car companies and used EV dealers need to keep 10–50 EVs charged without installing dozens of expensive chargers. One staff member can roll this portable unit between cars, providing a full 11kW DC charge in 1–2 hours per vehicle. The LCD touchscreen and RFID card reader make it easy for multiple employees to operate.
School bus depots often have limited power. Our 11kW unit can be used for opportunity charging – recharge a bus during its midday layover. Or keep one unit as a backup if a fixed charger fails. The wide voltage range (150–750V) covers most electric bus battery architectures.
Millions of EV owners park on the street or in condo garages without dedicated chargers. They can charge the portable unit at work or a public AC outlet (11kW AC input), wheel it to their parking spot, then fast‑charge their EV. The 130kg weight requires a ramp or two people, but for motivated owners, it solves the “no home charging” problem.
Order Your Roadside Rescue EV Charger Today
Equip your fleet with the 20kW portable Level 3 EV fast charger that works off-grid. Perfect for tow trucks, roadside assistance providers, and emergency services. Contact us for bulk pricing and custom branding.
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Related BESS EV Charging Products
| Weight | 130 kg |
|---|---|
| Dimensions | 1010 × 630 × 650 cm |
Shipping Notice
EGBATT has set a high standard for shipping lithium batteries. As lithium ion batteries fall under DG (dangerous goods) category, they use high-quality DG boxes or DG wooden cases to pack the batteries along with thick foam. This ensures that the batteries are delivered to customers in the best possible condition and without any damage.
We accept shipping
- By express or Air shipping like UPS, DHL, Fedex.
- Shipping by sea to port or to door service.
- FAC to Customer's forwarder company in China.
EGBATT ensures that all of its batteries meet the MSDS and UN38.3 standards. The packaging requirements for lithium batteries shipped by sea depend on the Watt-hour rating for lithium ion cells or batteries, or the lithium metal content for lithium metal cells or batteries. The packaging needs to meet UN specifications or be strong and rigid packing that can withstand the shocks, mechanical handling, and loading encountered during transport.
Shipping Regulation
If you are an international customer, please note that products will be shipped directly from China. To place your order, please contact odmbattery@outlook.com manually, rather than ordering on the website, as shipping costs may be inaccurate for regions outside of the USA.
EGbatt understands the importance of proper handling and regulation compliance when it comes to shipping lithium ion batteries. We take great care to follow all regulations for sea and air shipping to ensure the safe and secure transport of these potentially hazardous materials.
Shipping lithium ion batteries comes with specific guidelines outlined by transportation authorities, including the International Air Transport Association (IATA) and the International Maritime Dangerous Goods (IMDG) code, to minimize the risk of fire or explosion during shipping. These guidelines cover packaging, labeling, and documentation requirements, among other things. At EGbatt, we stay up-to-date with all current regulations and guidelines to ensure we are shipping our products safely and responsibly. We understand the risks involved with transporting lithium ion batteries and take the necessary precautions to minimize those risks for both our customers and our employees.

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