Rated Voltage: 80V DC
Rated Current: 40A+5A
Withstand Voltage: 1,500V AC
Insulation Resistance: 100MΩ at DC 500V
IP Rating: IPX7 Mated
OperatingTemperature: -40°C to 105°C
Salt Spray: 5% Nacl, 48H
Mating Cycle: 3,000 Cycles
Wire Gauge: Power 9AWG/Max, Signal 20AWG/Max
Wire Processing: Solder
Flammability Rating: UL94V-0

With the rapid development of electric two- and three-wheel vehicles, battery connection interfaces are facing evolving technical and regulatory requirements:
1. Rising Regulatory and Safety Requirements

Global markets are introducing requirements for communication capability and waterproof performance (e.g., IPX7) at the battery system level, driving the transition from pure power transmission to more integrated interface solutions.

2. Increasingly Demanding Operating Environments

Frequent charging and battery swapping, combined with outdoor and harsh conditions, place higher demands on waterproofing, durability, and connection reliability.

3. Limitations of Conventional Solutions
Traditional connectors are primarily designed for power transmission and struggle to meet the combined needs of communication, safety, and reliability.

4. First-Mover Innovation and Industry Evolution

As early as around 2015, Chogori, in collaboration with a leading global drive system customer in the electric two-wheeler sector, pioneered the development of integrated power + signal connector solutions with the Large 2+4 series.

Through continuous validation and iteration in real-world applications, this solution has been widely adopted across the industry, driving battery interface design toward greater integration and higher reliability, and establishing itself as a mainstream technical approach.

The Large 2+4 series is a mature and reliable connector solution designed for battery charging and discharging applications in electric two- and three-wheel vehicles.

The product supports up to 80V DC / 40A, features an IP67 protection rating, and offers a mating durability of up to 3,000 cycles. With its integrated power and signal design, it ensures stable and reliable connections under demanding operating conditions. It has been widely adopted across the industry and is recognized as one of the mainstream interface solutions.

1. Integrated Power and Signal Transmission
The 2+4 pin configuration enables simultaneous high-power charging and reliable signal transmission, supporting real-time communication between the BMS and the vehicle, and addressing the limitation of traditional power-only connectors.

2. IP67 High-Level Protection
Designed with advanced sealing structures, ensuring stable electrical and signal performance in harsh environments such as rain, dust, mud, and moisture.

3. High Durability – 3,000 Mating Cycles
Suitable for high-frequency use cases such as battery swapping systems, maintaining stable performance under repeated mating and unmating.

4. Diverse Configurations and Complete Charging/Discharging Solutions
Supports both charging and discharging applications, offering comprehensive solutions for both residential (To C) and commercial battery swapping (To B) scenarios.

Chogori Large 2+4 Series Connectors, “Stay Original, Continue to Lead” — this series has been widely validated in the industry and deployed at scale. It plays a key role in the following four application scenarios:
1. Vehicle Charging Port
Used as the vehicle-side interface to connect with external chargers, enabling safe and efficient charging. The IP67 protection rating ensures reliable performance in outdoor environments.

2. Battery Charging Port
Integrated into the battery pack, supporting connection with onboard or external charging devices, while balancing compact design and ease of use.

3. Battery Discharge Port
Delivers power from the battery to the vehicle system while enabling BMS signal transmission for real-time battery monitoring and safety management.

4. Battery Swapping Cabinet Interface
Designed for high-frequency mating scenarios, with 3,000 mating cycles and a reliable locking mechanism to ensure long-term stable operation.
This series covers the full power interaction chain of electric two-wheelers, from residential charging to commercial battery swapping, providing OEMs, battery manufacturers, charging equipment providers, and mobility operators with a unified, safe, and efficient battery interface solution.