Frequently Asked Questions
Every VoltScore report gives an overall battery-health score, plus State of Health, usable capacity, maximum range, premature-failure risk, per-module cell voltage and temperature balance, a real driving-range map, and charging time, cost and fuel-savings estimates — all from a quick plug-in test.
1Overall ScoreOne 0-100% health score from hundreds of metrics; a new battery scores 100%.
State of HealthCurrent capacity versus new, reported from the car battery management system.2
Max RangeDistance on a full charge in ideal conditions - comparable to EPA range.3
4Cell Voltage TestChecks each battery module for voltage balance and signs of degradation.
Usable CapacityHow much energy the battery can actually hold today, in kWh.5
Premature Failure RiskChance of battery failure within 12 months, from voltage and temperature imbalance.6
Cell Temp ImbalanceUneven pack temperatures - an early warning sign of battery trouble.7
8Range MapMaps realistic one-way and round-trip driving range from the test location.
9Fuel vs ElectricityEstimated yearly savings versus a gas car, based on annual mileage.
10Charging Time & CostEstimated home and fast-charging times and costs for this battery.
11Cell Voltage ValuesEach module measured voltage - flat, even bars show a healthy pack.
12Cell Voltage HistogramSpread of module voltages - tightly grouped bars mean a balanced pack.
See the sample VoltScore report on a separate page →
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A VoltScore Battery Health Report costs $59.99 per vehicle at any certified location across Canada. It's a one-time fee — no subscription, no hidden charges. For businesses (dealerships and repair shops), we offer plans starting at $299/month — repair shops and dealerships both get 40 reports included per month, then $19.99 per extra report. See full pricing →
We have certified testing locations across Canada from Vancouver to Fredericton. The test takes just 90 seconds to 2 minutes — no appointment needed at most locations. Find your nearest location →
The battery test takes just 90 seconds to 2 minutes. A technician connects a diagnostic device to your vehicle's OBD port — no lift, no disassembly. You'll receive your detailed report immediately after the test is complete.
This can happen because replacement risk looks at the overall degradation trajectory of the battery, not just individual cell health. Even if all cells are currently performing well, the rate at which the battery is losing capacity may indicate it's on a path toward needing replacement sooner than expected. Think of it like a car with a good engine but high mileage — the parts are fine today, but the trend line matters.
Cells rated "fair" are showing early signs of degradation but are still functional. "Failing" cells have significantly reduced capacity compared to the pack average, which can affect range and performance. A few fair cells are common in older batteries, but multiple failing cells may indicate the battery is approaching end of life. Your VoltScore report includes specific recommendations based on your results.
Manufacturer warranties typically only cover complete battery failure — not gradual degradation. Your battery could lose 20-30% of its original capacity and still not qualify for a warranty claim. A VoltScore report gives you an objective snapshot of actual battery health, so you know exactly where you stand whether you're buying, selling, or just planning ahead.
We recommend testing annually as part of regular maintenance, or before any major transaction (buying or selling). If your vehicle is over 5 years old or has more than 100,000 km, more frequent testing (every 6 months) can help you catch degradation trends early and plan accordingly.
Your car's dashboard estimate is based on recent driving habits, climate, terrain, and other variables — it's a prediction, not a measurement. The VoltScore report measures actual cell-level data directly from the battery management system, giving you the true usable capacity compared to the manufacturer's original specification. Think of it as the difference between a fuel gauge estimate and actually measuring what's in the tank.
A basic battery check only looks at overall capacity — like checking if a bucket is full. A full VoltScore report examines every individual cell, identifies early degradation patterns, and assesses premature failure risk. A battery can appear healthy at the surface level while having individual cells that are deteriorating faster than the rest, which will eventually cause problems. The full report catches what basic checks miss.
New batteries can show small voltage differences between cells during their break-in period. This is normal and typically balances out within a few charge cycles. If the differences persist or grow over time, it may indicate a manufacturing defect worth investigating under warranty.
