2021 JAC JS4 e-JS4 55 kWh (150 Hp)

Technical Specifications

The JAC JS4 e-JS4 55 kWh is an all-electric compact SUV manufactured by Anhui Jianghuai Automobile Group (JAC Motors) beginning in 2021. This vehicle represents JAC’s initial foray into the rapidly expanding electric vehicle (EV) market, designed to attract consumers looking for an affordable and practical electric crossover. Positioned as a mainstream offering, the JS4 e-JS4 primarily targets urban and suburban drivers who prioritize efficiency and modern features. Currently, the vehicle is predominantly sold within the Chinese domestic market, with limited export availability. The “e-JS4” designation specifically refers to the all-electric variant, utilizing a 55 kWh battery pack to deliver a competitive range within its price bracket.

Powertrain & Engine Architecture

The JAC JS4 e-JS4 employs a single electric motor powering the front wheels. This motor generates 150 horsepower and 340 Nm (250.77 lb.-ft.) of torque. The core of the powertrain is a 55 kWh Lithium Iron Phosphate (LiFePO4) battery pack. JAC opted for LiFePO4 chemistry due to its inherent safety advantages and extended lifespan compared to other lithium-ion battery types. The battery pack is strategically mounted under the vehicle floor, contributing to a lower center of gravity and enhanced vehicle stability. A single-speed automatic transmission, a common feature in electric vehicles, provides seamless and linear acceleration. The electric motor itself is a synchronous type, recognized for its efficiency and smooth operational characteristics. The battery supports both Level 2 AC charging and DC fast charging protocols, offering flexibility in charging options.

Driving Characteristics

The JS4 e-JS4 delivers brisk acceleration for its class, achieving a 0-60 mph time of approximately 9.2 seconds. The instantaneous torque delivery inherent to electric motors provides a responsive driving experience, particularly in urban environments. While not designed as a high-performance vehicle, the 150 hp motor offers sufficient power for highway merging and overtaking maneuvers. The single-speed transmission ensures a smooth and consistent power delivery. Compared to potential future variants with increased battery capacity or more powerful motors, the 55 kWh model prioritizes range and affordability over outright speed. The front-wheel-drive configuration provides predictable handling characteristics, although some torque steer may be noticeable during aggressive acceleration.

Equipment & Trim Levels

The JS4 e-JS4 typically comes equipped with standard features including air conditioning, power windows, a touchscreen infotainment system, Bluetooth connectivity, and essential safety systems such as ABS and airbags. Higher trim levels often include upgrades like a larger touchscreen display, a rearview camera, parking sensors, and enhanced interior materials. Interior upholstery is generally cloth, with options for leatherette in the more premium trims. The dashboard layout is modern and user-friendly, emphasizing ease of operation. Optional extras frequently include a panoramic sunroof and advanced driver-assistance systems (ADAS) packages.

Chassis & Braking

The JS4 e-JS4 utilizes an independent McPherson strut suspension system at the front and a torsion beam suspension at the rear. This configuration strikes a balance between ride comfort and handling performance. The front brakes are ventilated discs, providing effective stopping power, while the rear brakes are solid discs. Electric power steering offers light and precise steering feel. The vehicle’s relatively low weight, a result of the battery pack’s placement and the absence of a traditional internal combustion engine, contributes to its overall agility. The vehicle is equipped with 18-inch wheels and 225/45 R18 tires, offering a good compromise between ride comfort and grip.

Market Reception & Comparison

The JAC JS4 e-JS4 has been generally well-received in the Chinese market as an accessible and practical electric SUV. Reviewers have consistently praised its spacious interior, comfortable ride quality, and competitive range. However, some critiques have focused on the perceived quality of certain interior materials. When compared to other electric SUVs in a similar price range, the JS4 e-JS4 presents a compelling value proposition. Its range is competitive with comparable models, and the use of LiFePO4 battery technology provides added reassurance regarding safety and longevity. A key selling point is its energy consumption, which is significantly lower than that of comparable gasoline-powered vehicles, resulting in lower running costs.

Legacy

The JAC JS4 e-JS4 marks a pivotal step for JAC Motors in its expansion into the electric vehicle sector. While comprehensive long-term reliability data is still being collected, the LiFePO4 battery technology is well-regarded for its durability and resistance to degradation over time. The vehicle’s relatively simple powertrain design is expected to contribute to lower maintenance costs compared to vehicles with internal combustion engines. As the electric vehicle market continues to mature, the JS4 e-JS4 is poised to remain a popular choice for budget-conscious consumers seeking a practical and efficient electric SUV. Its continued success will depend on ongoing advancements in battery technology and the expansion of charging infrastructure.