Your EV's range estimate has fallen, and you have been driving over potholes since the rains began. Before worrying about the battery, check the tyres. A slow puncture can leave a tyre looking normal while its pressure drops.
Low pressure makes a tyre wear faster and can affect how the car handles, especially on a wet road. The Tiago EV manual supplied by Tata Motors Nepal says to check tyre pressure and condition every 15 days. Do not wait for a dashboard warning before checking with a gauge.
Use the number on the car
Look for the tyre-pressure label inside the driver's door or check the owner's manual. Use the pressure recommended for your car and load. The number on the tyre's sidewall is not the normal pressure you should set. Check before driving, while the tyres are cold. The Punch EV manual on Tata's Nepal site points owners to the door-area sticker and says underinflated tyres use more energy.
If you regularly carry a full car and luggage, the manual may give a different pressure for that load. One Tiago EV manual on Tata's Nepal site, for instance, lists 33 psi without a full load and 36 psi when loaded. Those numbers are for that version; use your own car's label. Ask a tyre shop to help if the label is missing.
After hitting a deep pothole, look at both sides of the tyre if you can do so safely. A bulge, cut or exposed cord needs a professional check. Look for uneven tread wear too. If the steering pulls to one side or the wheel vibrates, ask the shop to inspect the wheel and alignment.
When replacing a tyre
Match the size and load rating approved for the car. Some EVs are heavy for their size, so a tyre that fits the wheel may still have the wrong load rating. Ask the shop to show you those numbers on the tyre, and compare them with the owner's manual.
A tyre marketed as improving EV range may have low rolling resistance. That can help efficiency, but check its wet grip and the car maker's requirements as well. Range is of little use if the tyre does not stop well in rain.
Before a long trip, check all four tyres and the spare, if your car has one. Some EVs carry only a puncture repair kit. Find out what yours has before a tyre is damaged far from a workshop. A repair kit will not fix a torn sidewall.
If your usual drive suddenly uses more battery, tyre pressure is a quick, cheap place to start looking.