Key Feature: Built-in earthing mechanism for charging in locations without existing earthing.
Core Highlights:
- Designed for standard single-phase 16 Amp sockets and supports up to 3.5 kW charging
- Built-in earthing for locations without grounding
- Suitable for both indoor & outdoor use
- Manual reel mechanism
Cable Details:
- Cable Length: 25 meters
- Cable Size: 4 sq mm
- Cable Type: 3-core Polycab brand cable
- Core: 3 Core Copper
- Colour: Black
- Overall Diameter: 16.1 mm
Electrical Performance:
- Maximum Current Rating (AC): 44 Amp
- Recommended Continuous Current Capacity: 30 A
- AC Resistance: 5.9 Ohm
- Max DC Resistance: 4.16 Ohm
- Approx. Reactance at 50 Hz: 0.0927 Ohms/Km
- Capacitance: 0.22 mFd/Km
Insulation & Sheathing:
- PVC Insulation Thickness: 0.7 mm
- PVC Inner Sheath Thickness: 3 mm
- PVC Outer Sheath Thickness: 1.24 mm
Socket & Protection:
- Compatibility: Single-phase Indian standard 16 amp socket
- Plug Top: 16 Amp Type M, Norisys brand
- Socket: 16 Amp Northwest, Wipro brand
- RCBO: 32 Amp, 100mA, IEC 61009-1
Cable Safety Properties:
- Weather Resistance: –55°C to 50°C
- Fire Resistant: Yes
- Waterproof: Yes
(Cable is waterproof; keep the Wundercurrent charger in shade or inside the car trunk.)
Built-in Safety Features:
- RCBO protection against overcurrent and earth leakage
- Built-in earthing mechanism for safe EV charging
Certifications & Compliance:
- CE
- RoHS
- ISO 9001:2015
- CB
Earthing Rod Overview:
- Built-in mechanism: 6 mm pure copper earthing rod
- Copper Grade: C10100 (99.99% pure copper)
- Conductivity: Up to 101% IACS
Why External Earthing Is Important:
- EV chargers require 5 ohms or better earthing as per BIS & Government of India norms
- Typical earthing achieved: ~3 ohms in normal soil conditions
- Actual performance depends on soil moisture and terrain
Design & Durability:
- Sharp-pointed tip for easy soil penetration
- Corrosion-resistant pure copper construction
- Weatherproof and suitable for all Indian terrains
Safety Warning:
- Never bypass earthing — unsafe and illegal in India
- Non-earthing chargers are not BIS compliant and may cause electric shock, fire hazards, or EV damage
Technical Specifications:
- Thickness: 6 mm solid copper
- Length: 14 inches
- Earthing Resistance: ~3 ohms (soil dependent)
- Usage: Insert rod into moist soil until firmly set
- Compatibility: W2 Ultra, W3 Ultra & all Wundercurrent chargers
drone-grade silicone insulation for extremely low resistance and superior flexibility.Use Case:
- EV charging in villages and rural areas without proper grounding
- Hotels, resorts, and commercial parking spaces
- Construction sites and outdoor parking locations
Key Features:
- Ultra-flexible pure copper earthing cable
- High-temperature & weather resistant (–60°C to +200°C)
- Secure crocodile plug + banana socket connectors
- Mandatory EV safety requirement (Govt. of India)
Technical Specifications:
- Conductor Size: 2 sq mm
- Length: 5 meters
- Colour: Black
- Resistance: Very low
- Typical Earthing Output: ~3 ohms (soil dependent)
- Compatibility: All Wundercurrent chargers
6-in-1 Real-Time Monitoring:
- Voltage (V)
- Current (A)
- Power (W / kW)
- Energy Consumption (kWh)
- Frequency (Hz)
- Power Factor (PF)
Safety & Memory Features:
- Overload indication for electrical safety
- kWh memory retention during power cuts
- Backlight memory for night visibility
- Resettable energy counter
Technical Explanation:
- Voltage: Stable voltage ensures proper and safe charging
- Current: Verifies charging speed and wiring health
- Power: Monitors real-time power draw during charging
- Energy Consumption: Helps calculate actual charging cost
- Frequency: Should remain close to 50 Hz for stable operation
- Power Factor: Ideal operating range is 0.95–1.0
Meter Specifications:
- Voltage Range: 80–260V AC</li
- Maximum Current: Up to 100A (via CT sensor)
- Display: LCD multi-parameter display
- Accuracy: ±1%
- Wiring: Simple single-phase installation
- Compatibility: W2 Ultra, W3 Ultra & single-phase EV setups
Vehicle Compatibility:Compatible with (includes but not limited to):
- BYD: e6, Atto 3, Seal, Sealion 7, eMAX-7
- Hyundai: Kona Electric, IONIQ Electric, Creta EV
- Kia: EV6, Carens Clavis
- Mahindra: XUV400, XUV E8, XEV 9e, BE 6
- MG: ZS EV, Windsor EV, Cyberster
- Tata: Curvv EV, Nexon EV, Harrier EV
- Volvo: XC40
- Mercedes: EQB
- VinFast: VF6, VF7
Usage Guidelines:
- Charging Location: Any compatible single-phase 16 amp socket
- Earthing Rod Usage: Earthing rod must be inserted into moist soil as per provided instructions
- Weather Resistance: Cable can be left outdoors; keep the main unit dry and protected from direct rain
- Charging Time: Depends on the EV’s onboard charger capacity and battery size
Environmental & Operating Conditions:
- Operating Temperature Range: –55°C to 50°C
- Suitable for both indoor and outdoor charging environments
Physical Dimensions & Weight:
- Dimensions: 14 × 12 × 8 inches
- Weight: 8.5 kg
Warranty:
- Website / WhatsApp Orders: 2 years warranty with pickup & drop service
- Amazon & Flipkart Orders: 1 year warranty with doorstep pickup & delivery
Replacement Policy:
- 30-day replacement applicable for the same product or colour, or refund as per policy
Customer Support:
- Email: wundercurrentev@gmail.com
- Phone / WhatsApp: +91 93131 97730
FAQs
Wundercurrent is an extension reel specifically designed for safe and efficient electric vehicle (EV) charging. It allows you to charge your EV even in locations where earthing is not available.
It includes a long charging cable, a digital energy meter, and a Residual Current Circuit Breaker with Overcurrent protection (RCBO) to ensure high levels of safety and power management. Wundercurrent is compatible with standard single-phase 16-amp sockets, enabling reliable EV charging anywhere.
Yes, you can charge your EV with Wundercurrent even if earthing is not available at your charging location. Wundercurrent comes with an external earthing mechanism that includes a pure copper earthing rod. This rod can be driven into the ground to create a grounding point specifically for your charging session.
Yes, the Wundercurrent cable is waterproof, heat-resistant, and weatherproof. It can withstand rain, snow, and extreme temperatures for safe charging in any weather condition.
Yes, you can charge your EV with Wundercurrent in the rain. The cable (Ultra & Frunk) is waterproof, heat-resistant, and weatherproof, so you can charge your EV with peace of mind.
Wundercurrent can be stored in your car trunk or frunk; you can charge anywhere, anytime.
Yes, you can leave the Wundercurrent cable (Ultra & Frunk) outside while charging.
However, keep the main unit dry by placing it in a shaded area or inside your car trunk.
Wundercurrent is a special type of extension reel (Ultra & Frunk) designed to help you charge your electric vehicle safely, even in locations where earthing is not available.
It works with your car’s existing onboard charger, so charging times will be similar to what you experience with a standard home charging setup.
To know the exact charging time for your vehicle, please refer to your EV manufacturer’s manual, as it depends on the battery size and onboard charger capacity.
Wundercurrent (Ultra & Frunk models) is universally compatible with all electric vehicle models.
The main difference between the W2 Ultra (2.5 sq. mm) and W3 Ultra (4 sq. mm) cables lies in their cross-sectional area.
The 4 sq.m 3-core cable has a larger cross-sectional area, allowing it to carry higher current compared to the 2.5 sq. mm cable. This makes it suitable for applications with higher power requirements.
For electric vehicle charging—especially for EVs with higher power ratings—the 4 sq. mm cable is the better choice. It can safely handle higher current, reduce the risk of overheating, and ensure efficient power transfer.
In summary: The 4 sq. mm 3-core cable is preferable for EV charging due to its higher current-carrying capacity and improved thermal performance.
Wundercurrent is available in the following four models:
- W2 Ultra: 25 meters, 2.5 sq. mm cable
- W3 Ultra: 25 meters, 4 sq. mm cable
- W2 Frunk: 15 meters, 2.5 sq. mm cable (compact & portable)
- W3 Frunk: 15 meters, 4 sq. mm cable (compact & higher current capacity)
Both Ultra and Frunk models are designed for safe EV charging with external earthing support. The main differences lie in portability, cable length, and level of protection.
Ultra models are designed for:
- Longer cable reach
- Advanced electrical protection
- Long-duration and heavy-duty charging
- Digital energy monitoring
Frunk models are designed for:
- Compact size and easy storage inside the car frunk or boot
- Everyday city charging and travel
- Simpler, lightweight setup with essential protection
W2 Ultra vs W2 Frunk – Key Differences
| Feature | W2 Ultra | W2 Frunk |
|---|---|---|
| Cable Length | 25 meters | 15 meters |
| Cable Thickness | 2.5 sq mm | 2.5 sq mm |
| Protection Type | RCBO with overload protection | MCB |
| Digital Energy Meter | Included | Not included |
| Ideal Usage | Heavy-duty, long-duration charging | Regular home & city charging |
| Safety Level | Advanced | High |
W3 Ultra vs W3 Frunk – Key Differences
| Feature | W3 Ultra | W3 Frunk |
|---|---|---|
| Cable Length | 25 meters | 15 meters |
| Cable Thickness | 4 sq mm | 4 sq mm |
| Protection Type | RCBO with overload protection | MCB |
| Digital Energy Meter | Included | Not included |
| Ideal Usage | Heavy-duty, long-duration charging | Regular home & city charging |
| Safety Level | Advanced | High |
- Choose Frunk models if you want a compact, portable charger for daily city use and travel.
- Choose Ultra models if you want longer cable reach, advanced protection, and detailed energy monitoring for extended charging sessions.
The ideal cable size depends on your specific EV model and charging needs.
- 2.5 sq. mm (W2 Ultra / W2 Frunk):
Suitable for most EVs with moderate power ratings and standard charging speeds. - 4 sq. mm (W3 Ultra / W3 Frunk):
Recommended for EVs with higher power ratings, faster charging requirements, or for future-proofing your charging setup.
Not necessarily. If you have a standard EV with moderate charging requirements, the 2.5 sq. mm cable (W2 Ultra / W2 Frunk) might be sufficient and more cost-effective.
However, if you prioritise future-proofing or have a high-performance EV, the 4 sq. mm cable (W3 Ultra / W3 Frunk) is always the better.
W2 Ultra / W2 Frunk (2.5 sq. mm):
- Tata Tiago EV
- Tata Tigor EV
- Tata Punch EV
- MG Comet
- Citroën ë-C3 EV
W3 Ultra / W3 Frunk (4 sq. mm):
- BYD: e6, Atto 3, Seal, Sealion 7, eMAX-7
- Hyundai: Kona Electric, IONIQ Electric, Creta Electric
- Kia: EV6, Carens Clavis
- Mahindra: XUV400, XUV E8, XUV 9E, BE6
- MG: ZS EV, Windsor, Cyberster
- Tata: Curvv, Nexon EV, Harrier EV
- Mercedes-Benz: EQB
- Volvo: XC40
The Wundercurrent extension reel (Ultra & Frunk) is weather-resistant and can be used in temperatures ranging from –55°C to 50°C
Earthing is crucial for safety as it provides a low-resistance path for any potential current leakage. This helps prevent electric shock, protects your EV and charging equipment, and ensures a safe and reliable charging environment.
- Locate a suitable spot near your charging point
- Drive the sharp end of the 6 mm pure copper earthing rod firmly into the ground
- Connect the earthing cable from Wundercurrent (Ultra & Frunk) to the rod
Yes. The earthing mechanism’s effectiveness can improve in wet conditions because increased soil moisture enhances conductivity, helping achieve lower earthing resistance.
The digital energy meter (Ultra models) only provides real-time information on:
- Voltage
- Current
- Active Power
- Energy Consumed
- Frequency
- Power Factor
The energy reset key (Ultra model) allows you to accurately track energy consumption by resetting the meter whenever required, making it easier to monitor individual charging sessions.
- Wundercurrent Website: www.wundercurrent.in
(Includes full 2-year warranty) - Online Marketplaces: Amazon and Flipkart
- Website / WhatsApp purchases:
2-year warranty (Ultra & Frunk) - Amazon / Flipkart purchases:
1-year warranty (Ultra & Frunk)
Both warranties include pickup and drop services for repairs.
Wundercurrent offers a 30-day replacement guarantee for manufacturing defects.
The product (Ultra & Frunk models) will be replaced with the same model and colour, subject to availability.
If a replacement is not available, a refund will be issued as per policy.
You can reach the Wundercurrent customer support team using the following options:
- Email: wundercurrentev@gmail.com
- Phone / WhatsApp: +91 93131 97730
To initiate a replacement for a faulty Wundercurrent, please contact our customer support team via Email or Phone/WhatsApp.
Share your order details, and our support team will guide you through the replacement process step by step.
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