Kia Soul EV Battery

Battery generations overview

🔋 27 kWh Battery (2015–2017)

• Battery Capacity: 27 kWh usable (30.5 kWh gross) [Generation 1]
• Motor Power: 81.4 kW (109 hp)
• Torque: 285 Nm (210 lb-ft)
• 0–100 km/h: ~9.5 seconds
• Top Speed: 145 km/h (90.1 mph)
• Charging:
  • AC: 6.6 kW on-board charger
  • DC Fast Charging: CHAdeMO up to 100 kW
• Range: ~150 km (EPA)
• Battery Type: Lithium-ion polymer
• Voltage: 360 V
• Weight: ~277 kg
• Cooling: Air-cooled

🔋 30 kWh Battery (2017–2019)

• Battery Capacity: 30 kWh usable (31.8 kWh gross) [Generation 2]
• Motor Power: 81.4 kW (109 hp)
• Torque: 285 Nm (210 lb-ft)
• 0–100 km/h: ~9.2 seconds
• Top Speed: 145 km/h (90.1 mph)
• Charging:
  • AC: 6.6 kW on-board charger
  • DC Fast Charging: CHAdeMO up to 100 kW
• Range: ~182 km (EPA)
• Battery Type: Lithium-ion polymer
• Voltage: 375 V
• Weight: ~290 kg
• Cooling: Air-cooled

🔋 39.2 kWh Battery (2020–2023)

• Battery Capacity: 39.2 kWh usable [Generation 3]
• Motor Power: 100 kW (136 hp)
• Torque: 395 Nm
• 0–100 km/h: ~9.9 seconds
• Top Speed: 157 km/h
• Charging:
  • AC: 7.2 kW on-board charger
  • DC Fast Charging: CCS up to 100 kW
• Range: Up to 276 km (WLTP)
• Battery Type: Lithium-ion polymer
• Voltage: 327 V
• Weight: ~317 kg
• Cooling: Liquid-cooled

🔋 64 kWh Battery (2020–2024)

• Battery Capacity: 64 kWh usable (67.5 kWh gross) [Generation 4]
• Motor Power: 150 kW (204 hp)
• Torque: 395 Nm
• 0–100 km/h: ~7.9 seconds
• Top Speed: 167 km/h
• Charging:
  • AC: 7.2 kW on-board charger
  • DC Fast Charging: CCS up to 100 kW
• Range: Up to 452 km (WLTP)
• Battery Type: Lithium-ion polymer
• Voltage: 356 V
• Weight: ~457 kg
• Cooling: Liquid-cooled

Battery generation 1

(Section might also apply for battery generation 2)

General

The first generation of the battery consists of 8 modules in two sizes, 4x10S2P and 4x14S2P, building up to 96S2P (approx. 355V) . The battery is of a "blade"-type with air pockets incorporated in between each cell, improving heat dissipation.

The battery should be good to supply 225 Amps (at least for a limited time) which is about 3C as the battery is 2x37.5Ah. The battery should also handle rapid charging OK, especially if forced air circulation is applied.

This battery is most probably not suitable to mount in any EV conversion given the age and early generation, but it might be a good affordable solution for a home battery. It is worth noticing that the large 14S modules has a voltage span (2.5V-4.2V per cell gives 35-58.8V for module) that coincide quite closely with a traditional 48V (36-58V) Lead-acid battery setup. There are plenty of inverters that support 48V-systems. The modules has mounting holes sticking out in each corner, making it ideal for rack mounting.

BMS

Mounting an external BMS is extremely easy on these modules. One can either use the existing connector (if you can find the mating plug), or use the M6 bolts that conveniently sticks on on both sides for the cell connections. Given that all cell connections are done with easily accessible M6 bolts, it is also easy to reconfigure the modules to another setup than 10S2P or 14S2P, for example 5S4P or 7S4P.

The BMS consists of a single main BMS that received HV-balancing leads from each of the cells. Therefore, there are no slave BMSs in each module. The balancing leads are led out through a single connector (12 pins for 10S, 16 pins for 14S). Each balancing lead is fused just beneath the connector with a 2A fuse. When measuring voltage of each cell, it is much better to remove the plastic cover to expose each battery pole, rather than to measure on the connector as you risk shorting two pins, blowing a fuse.

Dimensions

Length: Module 430 mm, cells 360 mm

Width: Module 320 mm, cells 270 mm

Height: Module 140 mm, cells 130 mm