01/05/2026
Professional EV Battery Health Testing at SI Auto Ampthill
At SI Auto Ampthill, we provide professional, data-driven High Voltage (HV) Battery State of Health (SOH) testing to give EV owners and buyers total transparency.
While a dashboard might show a "100% charge," that only tells you the battery is full—not how much its total capacity has degraded over time. Our specialist diagnostic tools extract the raw data directly from the Battery Management System (BMS) to provide a certified health report.
Si auto Ampthill Offering EVs HV battery SOH check
Whether you are a private EV owner, looking to sell your car, or considering a used purchase, having a definitive State of Health (SOH) report for your High Voltage (HV) battery is essential for peace of mind and resale value.
1. Comprehensive SOH Diagnostic
We plug directly into your vehicle’s Management System to extract real-time data from the Battery Management System (BMS).
Capacity Verification: Accurate percentage of the battery's remaining capacity compared to when it was new.
Cell Voltage Analysis: Checking for imbalances between individual cells that could indicate future failure.
Thermal Monitoring: Assessing the health of the battery cooling and heating systems.
2. EV & Hybrid Inspection
3. Resale & Purchase Peace of Mind
For Sellers: A professional SOH certificate proves your battery has been well-maintained, justifying a higher asking price.
For Buyers: Don’t rely on the "estimated range" on the dash, which fluctuates based on driving style. Get a raw data report before you buy.
Note: We recommend a full HV battery health check annually or prior to the expiration of your manufacturer’s battery warranty (typically 8 years/100,000 miles).
Contact Us to Book
Phone: 07446490668
Location: Unit 1a SI AUTO (L W Vass industrial estate), Station Road, Ampthill, MK45 2RB
Website:
LOCAL GARAGE IN THE HEART OF BEDFORDSHIRE SI AUTO AMPTHILL Check Our Works More than just a mechanic - A CAR Enthusiast Driven by Expertise, Built on TrustAt SI Auto Ampthill, we're more than just mechanics – we're passionate about keeping your vehicle running at its best. Founded in April 2024 by...