Your battery is your EV's most valuable component. We assess its state-of-health, identify degradation, and give you a complete picture of your battery's condition and remaining life.
All lithium-ion batteries degrade over time — but the rate of degradation varies significantly by chemistry, usage patterns, charging habits, and thermal management. A battery showing 80% state-of-health may have years of reliable service ahead; one showing 70% with cell imbalance may be causing range anxiety and reduced performance today.
Our battery diagnostics go beyond what the vehicle's dashboard tells you — we connect with professional EV diagnostic tools to read live cell voltage data, measure capacity, and assess the thermal management system.
We deliver a clear SOH percentage and capacity figure — plus context on what that means for your specific vehicle. Know whether your battery is performing as expected for its age and mileage.
Individual cell imbalance is one of the leading causes of reduced range and premature capacity loss. We measure voltage spread across the entire pack to identify cells pulling the rest down.
Battery temperature management is critical to longevity. We inspect the liquid cooling circuit, fan-based systems, or heat pump integration — and check for coolant leaks, blockages, and sensor faults.
Buying a used EV? A battery diagnostic before purchase is essential. We give you an unbiased assessment of the battery's true condition — not just the number on the seller's dashboard.
Whether you're concerned about range loss, planning to buy a used EV, or just want peace of mind — our battery diagnostic gives you the full picture. Eligible repairs using NAPA parts are backed by the NAPA Peace of Mind Warranty (3 yr / 60,000 km).