Stop losing B2B margins on external chargers and complex bundles. The XTAR 21700 5500mAh USB-C battery integrates a built-in USB-C port and smart charging chip directly into the cell. No dedicated charger is required—end-users simply plug in a standard USB-C cable to recharge from a wall adapter, power bank, car charger, or laptop. This reduces your bill of materials and eliminates mechanical charging contacts for OEM clients.

• Eliminate False Low-Voltage Complaints: Stable 15A continuous discharge ensures perfect compatibility with high-drain devices like tactical flashlights, diving lights, and portable fans. Prevents premature shutdowns that cause costly RMA claims.
• Optimize Logistics & ESG Compliance: With 500+ recharge cycles, one battery replaces hundreds of disposable cells. Slash bulk shipping weight, reduce warehousing space, and help clients meet sustainability targets.
• 5500mAh True Capacity: High-capacity cell provides longer runtime, reducing the need for frequent recharging and improving end-user satisfaction.
• All-Round Safety Protection: Smart chip monitors performance in real time with 6-layer protection (over-charge, over-discharge, over-voltage, over-current, short-circuit, temperature).

We support international wholesalers, brand importers, and cross-border e-commerce sellers with complete supply chain solutions:

• Custom Packaging Options: Available in blister cards, multi-cell retail display boxes, or bulk industrial tray packaging for seamless OEM integration.
• Full Global Customs Compliance: Fully documented with CE, FCC, RoHS, MSDS, and UN38.3 certifications to guarantee smooth customs clearance worldwide.
• Scalable Production & Low MOQ: Direct factory capacity ensures quick lead times, flexible minimum order quantities, and reliable restock cycles.

As a direct manufacturer, we eliminate supply chain uncertainties by taking full control of the production line:

• 100% Individual Cell Testing: Every single battery undergoes rigorous automated and manual testing for voltage, capacity, internal resistance, and safety circuit functionality before leaving our factory.
• Verified 99.7% Yield Rate: Based on real feedback from global B2B clients, our strict Quality Control (QC) protocols consistently deliver a market-proven 99.7% qualification rate.
• Zero-Defect Commitment for OEM Partners: Our batch-to-batch consistency safeguards your brand reputation, minimizing customer complaints and lowering overall RMA costs.