Use a familiar route as a reference
A range diary is useful when it records comparable journeys. Choose a familiar route and note distance, terrain, load and conditions. Record the starting and finishing charge indication without deliberately running the chair flat. The purpose is to understand your routine, not to find the point at which you become stranded.
Record enough context to compare trips
| Field | Example of useful detail |
|---|---|
| Route | Same shop route, including the hill on the return. |
| Load | Usual bag, with groceries added for the return. |
| Conditions | Dry or wet, temperature and unusual headwind. |
| Indication | Starting and finishing display, plus any warning. |
| Charging | Whether the usual charging sequence completed. |
Change one comparison at a time
If one trip includes hills, shopping and cold weather while another is short and level, the difference cannot be assigned to a single cause. Keep those details in the record. A repeated familiar trip offers a clearer comparison than two unrelated outings.
For example, three journeys to the same shop may show that the return with groceries uses more indicated charge than the outward leg. That observation can inform planning, but it is not a laboratory measurement of battery capacity or proof of a fault.
Turn the diary into a service conversation
A sudden change on a familiar trip is easier to explain with dated records. Include any warning code and changes to tyres, accessories or charging behaviour. Share the pattern with the service team rather than guessing which part needs replacement.
For longer outings, retain a return margin and a fallback arrangement suited to your circumstances. Do not extrapolate a short test into a guaranteed full-day distance: the later route, conditions and battery behaviour may differ.
