Dear Khun Siriprapa, Khun Kesorn,
Regarding Customer from Tak was complaint about engine cannot start by battery discharge.
Could you check mileage and maintenance history for this vehicle.
This case I suggestion to check battery condition and recharge battery first.
If battery was failure, warranty cover for battery is 12 Months or 20,000 km (Warranty condition, frequently maintenance by Changan’s authorized workshop if not warranty was void).
In case of customer will replace by battery himself, model in attach picture can replace for Changan vehicle.