W3 Frunk

Description:
The Wundercurrent W3 Frunk is a compact and portable EV charging extension reel designed specifically to fit inside your vehicle’s frunk or boot. Its space-efficient design makes it ideal for EV owners who want a dedicated charger that can be safely stored inside the car and carried during daily use or travel.Built for safe and reliable charging, the W3 Frunk delivers stable power even in locations without pre-installed earthing. Unlike ordinary extension cables, it features a 15-meter heavy-duty 4 sq mm copper cable, an integrated Miniature Circuit Breaker (MCB) for electrical protection, and a dedicated external pure copper earthing mechanism.The W3 Frunk can be used with or without existing earthing. When earthing is unavailable, the supplied copper earthing rod creates a temporary but effective grounding point, allowing confident EV charging at homes, apartments, basements, parking areas, hotels, and outdoor locations.

Core Highlights:

• Compact design fits easily inside car frunk or boot
• 4 sq mm cable suitable for higher-capacity EVs
• Designed strictly for single-phase 16 Amp sockets
• External earthing support for locations without grounding
• Portable, travel-friendly EV charging solution
• Manual reel mechanism

Cable Details:

• Cable Length: 15 meters
• Cable Size: 4 sq mm
• Cable Type: 3-core copper cable
• Core: 3 Core Copper
• Colour: Black

Electrical Performance:

• Maximum Current Rating (AC): Suitable for 16 Amp EV charging
• Recommended Continuous Current Capacity: 16 A

Socket & Protection:

• Compatibility: Single-phase Indian standard 16 Amp socket
• Plug & Socket: 16 Amp standard
• Protection Type: Integrated MCB (Miniature Circuit Breaker)

Cable Safety Properties:

• Weather Resistance: –55°C to 50°C
• Fire Resistant: Yes
• Waterproof: Yes

(Cable is waterproof; keep the main unit shaded or covered)

Built-in Safety Features:

• MCB protection against overload
• External earthing mechanism for safe EV charging

Certifications & Compliance:

• CE
• RoHS
• ISO 9001:2015
• CB

Earthing Rod Overview:

• External earthing mechanism: with 6 mm pure copper rod
• Copper Grade: C10100 (99.99% pure copper)
• Designed to: create a safe grounding point when fixed earthing is unavailable

Why External Earthing Is Important:

• EV charging requires below 5 ohms earthing as per BIS & Government of India norms
• Typical earthing performance: ~3 ohms in normal soil
• Effectiveness improves in moist or wet soil conditions

Design & Safety:

• Sharp-pointed tip for easy soil penetration
• Corrosion-resistant and weatherproof
• Suitable for all Indian terrains

⚠️ Safety Warning:

• Never bypass earthing. Charging without proper grounding is unsafe, illegal, and may cause electric shock, fire hazards, or EV damage.

Technical Specifications:

• Thickness: 6 mm solid copper
• Usage: Insert rod firmly into soil near charging point
• Compatibility: All Wundercurrent chargers

Overview:
High-quality silicone-insulated pure copper earthing cable designed for low resistance and reliable grounding during EV charging.

Key Features:

• Flexible pure copper conductor
• Heat-resistant and weather-ready insulation
• Secure crocodile clip + banana socket connection
• Suitable for outdoor and travel charging scenarios

Technical Specifications:

• Conductor Size: 2 sq mm
• Length: 5 meters
• Colour: Black
• Typical Earthing Output: ~3 ohms (soil dependent)

Vehicle Compatibility (W3 Frunk):

• Tata: Nexon EV, Curvv EV, Harrier EV
• Mahindra: XUV400, XUV E8, XUV 9e, BE 6
• Hyundai: Kona Electric, IONIQ Electric, Creta EV
• BYD: e6, Atto 3, Seal, Sealion 7, eMAX-7
• MG: ZS EV, Windsor EV, Cyberster EV
• Kia: EV6, Carens, Clavis
• Volvo: EX40
• Mercedes-Benz: EQB
• VinFast: VF6, VF7

Usage Guidelines:

• Charging Location: Single-phase 16 Amp socket only
• Earthing Rod Usage: Insert firmly into soil near charging point
• Weather Use: Cable can be used outdoors; keep the main unit shaded
• Charging Time: Depends on EV onboard charger and battery capacity

Environmental & Operating Conditions:

• Operating Temperature Range: –55°C to 50°C

Physical Dimensions & Form Factor:

• Dimensions: 30 cm (L) × 24 cm (W) × 20 cm (D)
• Weight: 3.75 kg
• Compact reel design fits inside car frunk or boot
• Easy to carry for travel and daily use

Warranty:

• Website / WhatsApp Orders: 2-year warranty
• Amazon & Flipkart Orders: 1-year warranty

Replacement:

• 30-day replacement for manufacturing defects

Customer Support:

• Phone / WhatsApp: +91 93131 97730
• Email: wundercurrentev@gmail.com

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 kind of extension reel (Ultra & Frunk) that helps you charge your EV safely, even if the place you’re plugged into doesn’t have earthing.

It works with your car’s existing onboard charger, so charging times will be similar to what you get at home.

To find out exactly how long it takes to charge your car, refer to your car’s manual.

Wundercurrent (Ultra & Frunk models) is universally compatible with all EV models.

The main difference between a 2.5 sq. mm 3-core cable (W2 Ultra) and a 4 sq. mm 3-core cable (W3 Ultra) lies in their cross-sectional area.

The 4 sq. mm cable has a larger cross-sectional area, allowing it to carry more current compared to the 2.5 sq. mm cable. This difference is crucial for applications with higher power requirements.

For charging electric vehicles, especially those with higher power ratings, the 4 sq. mm 3-core cable would be a better choice. It can handle a higher current, reducing the risk of overheating during the charging process and ensuring efficient power transfer.

In summary: the 4 sq. mm 3-core cable is preferable for charging electric vehicles due to its larger cross-sectional area and ability to handle higher currents.

Wundercurrent comes in 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 difference lies 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	Ultra	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.

Yes. The Wundercurrent W2 Frunk is designed to fit inside most modern EV frunks or boots.

• Dimensions: 30 cm (L) × 24 cm (W) × 20 cm (D)
• Weight: 3.75 kg

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 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 by providing a low-resistance path for any potential current leakage, preventing damage to your EV and ensuring a safe charging environment.

• Locate a suitable spot near your charging point
• Drive the sharp end of the 6 mm pure copper 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 due to increased soil conductivity.

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 models) allows you to accurately track energy consumption by resetting the meter when needed.

• Wundercurrent Website: www.wundercurrent.in (includes full 2-year warranty)
• Also available on 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) will be replaced with the same model and colour, subject to availability, or a refund will be issued.

• Email: wundercurrentev@gmail.com
• Phone / WhatsApp: +91 93131 97730

Contact Wundercurrent’s customer support team via email or phone/WhatsApp. Provide your order details, and the team will guide you through the replacement process.