Customer Technical Support: Handle after-sales technical enquiries from Malaysia-based customers via phone, email, or on-site visits; diagnose and resolve product issues related to lead-acid and lithium battery systems.2. On-Site Service & Troubleshooting: Perform installation checks, commissioning support, and fault-finding at customer sites; provide hands-on solutions for quality and operational issues in the field.3. Product Testing & Analysis: Conduct local testing on defective products returned by customers; document findings and coordinate with HQ Technical Support / R&D for complex cases.4. Customer Training: Deliver basic product operation and maintenance training to customers and local partners as required.5. Documentation: Prepare service reports, site visit records, and maintain accurate after-sales documentation for Malaysia accounts.6. Coordination: Liaise with Leoch China HQ Technical Support for escalated technical matters and spare parts coordination when necessary.7. Ad-hoc Duties: Perform any other after-sales related tasks assigned by the superior.