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Ownership / CANADIAN EV FIELD GUIDE

Should I charge to 80% or 100%?

Follow the exact battery’s guidance instead of treating one internet rule as universal.

Reviewed September 26, 2026
THE SHORT ANSWER

Use the recommended charge limit in your vehicle’s manual or charging screen. Battery chemistry and manufacturer guidance differ. An example planning window on this site is not a charging instruction for every EV.

01

Separate a daily routine from a long trip.

A regular charge limit and a one-off trip departure target can differ. Tesla’s manual, for example, tells owners of vehicles with an 80% recommended daily limit to use that limit for routine use and reserve 100% for longer journeys. Check the instructions that apply to your own battery.

02

Do not infer chemistry from the badge.

Different years and versions of the same model can use different batteries. Ask the seller or manufacturer to identify this vehicle’s pack. Follow any specific calibration or full-charge guidance for that version; do not assume every LFP or every Tesla has identical instructions.

03

Match charging to the next drive.

You do not need to run a battery low just to plug it in. Use the manufacturer’s scheduling features and advice for storage, daily charging and trips. At public chargers, consider both the slowing charge rate near full and the station’s posted idle or congestion rules.

Sources & further reading

Manufacturer examples apply to the stated vehicles. Check the exact model-year documentation and current program rules.