Phone Battery Sourcing
Compatibility, capacity checks, UN38.3/MSDS, sample testing and OEM packaging for battery buyers.
B2B Buyer Guides
Wholesale sourcing guides for phone batteries, iPad LCD screens, chargers, cables, earphones and repair parts.
Buyer Guides by Sourcing Topic
Start with the topic closest to your purchase plan, then compare the category page, read the guide or open a prefilled RFQ.
iPad LCD Screen Sourcing
Model matching, display grade, touch test, dead-pixel standard and protective packing for LCD orders.
USB-C / GaN Charger Sourcing
PD/QC protocol, plug type, heat control, certificates, samples and OEM retail packaging.
Wireless Charger Sourcing
Qi compatibility, heat control, coil alignment, phone-case testing, bundles and retail packaging.
Data Cable Factory Sourcing
Connector type, charging current, data transfer, E-marker needs, bend testing and custom labels.
Earphones / TWS Sourcing
Sound balance, microphone quality, Bluetooth pairing, battery life, charging case and OEM packaging.
Phone Repair Parts Sourcing
Mixed SKU planning, model fit, flex connector checks, protective packing and repair-shop restocking.
📚 Complete Guide
How to Source Multi-Port GaN Desktop Chargers from a China Factory: OEM, MOQ, Certifications and QC Checklist
A practical B2B checklist for sourcing multi-port GaN desktop chargers from China: OEM packaging, MOQ, samples, certifications, QC, lead time and supp...
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📚 Complete Guide
The B2B Guide to Sourcing iPhone Batteries: A View from the Factory Floor
Stop chasing the lowest price and start avoiding the 5% return rate. Learn how to source Tier-1 iPhone batteries with Doolike’s 25 years of factory...
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Pen Case and Stylus Bundle for Samsung Galaxy Z Fold5: Wholesale Sourcing Checklist
A wholesale checklist for combining a pen-slot case and replacement stylus for Samsung Galaxy Z Fold5, covering fit, hinge clearance, pen retention, p...
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Non-Bluetooth Replacement Stylus vs Bluetooth S Pen: Compatibility Guide for Samsung Buyers
A practical compatibility guide for B2B buyers comparing writing-only replacement stylus products with Bluetooth-enabled pen functions for selected Sa...
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What Is a Sunwoda Battery? iPhone Battery Identity and Replacement Guide
A neutral guide to Sunwoda battery searches, iPhone battery identity, original versus third-party compatible replacements, authentication limits and w...
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iPhone 16 Battery Wholesale: Bulk Sourcing Guide for Repair Shops
A practical iPhone 16 battery wholesale guide for repair shops and importers covering model demand, aftermarket options, sample approval, MOQ, packagi...
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Mobile Phone Accessories Supplier China: Mixed Order Guide
A practical mixed-order guide for importers buying phone batteries, iPad LCD screens, chargers, cables, wireless chargers, earbuds and repair parts fr...
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E-Marker USB-C Cable Test: What Importers Should Check Before Buying 100W or 240W Cables
High-power USB-C cable buyers should verify E-marker, PD behavior, current rating and packaging claims before approving 100W or 240W bulk orders....
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CE FCC RoHS Charger Importer Checklist: How to Avoid Certification Problems in Bulk Orders
USB-C and GaN charger buyers should confirm market certifications, plug type, labeling, protocol tests and burn-in checks before bulk orders....
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