Keep the units separate
Watts describe power, watt-hours describe stored energy and miles or kilometers describe distance. A specification can use all three without providing evidence of how far a rider will travel. Battery nameplate energy is not identical to energy available throughout a real ride.
Our original worksheet keeps the source, unit and conditions beside every number. This prevents a motor-power claim from being mistaken for capacity or a distance claim from being treated as an unconditional result.
Ask what produced the range claim
| Variable | What to record | Comparison problem |
|---|---|---|
| Load | Rider and carried mass | Different total loads |
| Route | Surface, elevation and stops | Flat continuous riding versus hills |
| Conditions | Temperature and wind | Different environmental demand |
| Operation | Speed profile and stopping rule | Different warnings or reserve thresholds |
If those fields are missing, record the claim as insufficiently specified. Do not apply a universal percentage discount and present the result as measured range.
Treat warnings as operating constraints
An electric unicycle depends on an active balancing system. The available response is affected by the operating state, so a maximum number on a sales page does not describe every acceleration, slope or battery condition. Read the exact model’s warnings before use and seek competent instruction.
The CPSC micromobility safety discusses micromobility battery precautions. The separate CPSC charger warning is relevant when choosing replacement charging equipment. These are safety references, not proof that any particular wheel has passed our tests.
Build a route plan from evidence
List the longest planned leg, permitted alternatives and the consequences of stopping early. Consider how the device will be recovered or carried if it cannot continue. A seller’s best-case claim should not be the only basis for a trip with no practical return option.
For future original range work, publish the full protocol and repeated observations, including variation. Until then, use the selection guide and device explanation to identify what still needs verification.
