Kia Soul 27 kWh Tested with Aviloo

Bjørn Nyland
Bjørn NylandApr 8, 2026

Why It Matters

Accurate battery health data directly influences resale value and buyer confidence for used Kia Soul EVs, making independent testing essential before market listings.

Key Takeaways

  • AO test shows 26.3‑27 kWh usable capacity on replaced battery.
  • Original Kia Soul rated 28.5‑29 kWh, now ~93% health.
  • Consumption measured ~150 Wh/km, yielding ~170 km range under cold conditions.
  • AO’s state‑of‑health reading (88%) differs from independent test (93%).
  • Sellers should avoid VO tests until replacement‑battery option added.

Summary

The video documents a hands‑on battery‑capacity test of a Kia Soul equipped with a 27 kWh pack, using the Aviloo (AO) diagnostic app to generate a formal report for a potential sale. The creator also cross‑checks the AO results with his own measurements and a prior test on a similar vehicle. Key data points include a measured usable capacity of 26.3‑27 kWh, versus the factory‑stated 28.5‑29 kWh, indicating roughly 93 % state‑of‑health for a battery that has logged about 74,000 km since replacement. Real‑world driving showed energy consumption around 150 Wh per kilometre, delivering roughly 170 km of range in 3 °C weather. AO reported an 88 % health figure and occasionally displayed over‑100 % state‑of‑charge, suggesting possible software interference. The presenter notes that the vehicle has traveled 222,000 km total, with the battery swapped at 148,000 km. He highlights AO’s occasional glitches—such as SOC spikes and a “dash‑dash‑dash” warning at low charge—and explains that the app relies on manufacturer‑provided nominal values rather than independent verification. A follow‑up test using AO’s 27 kWh preset produced consistent capacity numbers, confirming the earlier findings. For prospective sellers, the takeaway is clear: AO’s health metric may under‑state battery condition, and the standard VO (Volkswagen‑type) test lacks an option for replacement packs, potentially skewing results. Relying on direct capacity measurements and detailed reports can secure a better resale price and avoid misrepresentation.

Original Description

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