Returns & Warranty Policy

01 · Scope & B2B Order Nature

This policy sets out terms governing returns, replacements, repairs and credit notes for lithium battery packs manufactured and supplied by Dongguan Junda New Energy Technology Co., Ltd. (trading as XINYUEGE). It operates alongside our after-sales service terms and your individual commercial contract or proforma invoice.

Because industrial lithium battery assemblies are hazardous goods subject to strict international transport regulations (UN38.3, IATA DGR, IMDG Code), returns cannot be handled like general consumer goods. Unauthorised shipments cannot be accepted at our receiving facilities.

02 · Warranty Coverage & Terms

All battery packs supplied by XINYUEGE carry a standard 12-month factory warranty from the bill of lading date, covering manufacturing defects in genuine cell assemblies, spot welds, nickel strips, BMS hardware and internal wiring.

Remedies for verified defects: Where an engineering defect is confirmed by our technical team, XINYUEGE provides: (a) replacement packs or sub-modules, (b) replacement BMS or replacement cell blocks, or (c) commercial credit against subsequent purchase orders.

Exclusions: Warranty does not cover: capacity degradation resulting from normal cycle ageing; deep discharge below cutoff voltage caused by long-term storage without recharging; water ingress exceeding specified IP rating; charger mismatch or over-voltage charging; or unauthorised pack teardown.

03 · Custom & OEM/ODM Packs

Battery packs engineered to bespoke specifications — custom cell arrangement, unique enclosure dimensions, custom BMS firmware, harness connectors or branded labels — are manufactured exclusively for your order and cannot be resold to third parties.

Custom and OEM/ODM products are therefore non-returnable for change of mind, market demand shifts or order volume changes. In the event of confirmed non-conformity against approved pre-production golden samples or agreed acceptance test reports (FAT), corrective remedies apply in accordance with the warranty terms.

04 · Standard Replacement Packs

Standard e-bike replacement batteries (Dorado, Hailong, Rear-rack models) and catalogue accessories may be returned if unused, undamaged, and kept in original UN-rated hazard packaging within 7 working days of delivery acceptance, subject to a pre-agreed restocking fee and buyer-covered return freight.

05 · Transit Damage & Dead-on-Arrival (DOA)

Upon receiving battery shipments, examine outer UN cartons before signing delivery receipts. Note any outer crushed corners, puncture marks or electrolyte smell on the carrier bill of lading.

Any shortage, visual casing transit damage or dead-on-arrival (zero voltage / BMS error) unit must be reported in writing within 7 calendar days of customs release, supported by batch number photographs, multimeter voltage readings and outer carton images.

06 · RMA Authorization & Procedure

1. Step 1 — Claim Initiation: Email xygbattery@gmail.com with order number, pack serial numbers, voltage/capacity readings and photo/video evidence.
2. Step 2 — Engineering Review: Our battery engineers evaluate diagnostic logs, BMS error codes and cell balance telemetry within 24–48 hours.
3. Step 3 — RMA Issuance: Once approved, an official Return Material Authorization (RMA) reference is issued along with shipping instructions and dangerous goods documentation requirements.
4. Step 4 — Settlement: Upon physical or telemetry verification, replacement items, repair modules or credit notes are dispatched within the agreed lead time.

07 · Contact & Warranty Claims