Genuine Samsung 21700 50S 5000mAh 45A High-Drain Lithium-Ion Battery Cell | In Stock & Ready to Ship | Competitive B2B Wholesale Pricing from kingberry

 

Parameter	Specification Details
Manufacturer	Samsung SDI
Model Code	INR21700-50S (50S)
Size	21700 (Cylindrical)
Nominal Capacity	5000mAh (High Capacity)
Nominal Voltage	3.6V / 3.7V
Maximum Discharge Current	45A (With $80^\circ\text{C}$ temperature cut-off) | 25A (Continuous without temperature cut-off)
Dimensions  /Weight	Diameter: 21.1 mm Max | Length: 70.15 mm Max /Approx. 72.0g
Applications	High-drain power tools, light electric vehicles (LEVs), e-bikes, and premium battery packs

2. Key Selling Points for B2B Wholesalers 
The Ultimate Balance of Power & Capacity: The Samsung 50S is globally renowned for breaking the compromise between high discharge rates and high capacity. Offering 5000mAh alongside a brutal 45A peak discharge, it is the gold standard for premium hardware.

Strict Quality & Cell Consistency: Every single batch features perfectly matched internal resistance and voltage profiles. This reduces balancing overhead and significantly extends the cycle life of the custom battery packs you manufacture.

Guaranteed Authenticity: We enforce a strict, zero-tolerance anti-counterfeit inspection policy. 100% genuine Samsung cells guaranteed.

3. Company Advantages & B2B Services
Established Expertise: Founded in 2014 in Shenzhen—the world capital of electronic hardware—with over a decade of production excellence.

Full Industrial Certifications: Our production facility is BSCI-audited, and products have secured CE, RoHS, FCC, UL, PSE, FDA, MSDS, and UN38.3 certifications, ensuring 100% compliant global export.

Strong OEM/ODM Capability: Backed by an innovative R&D team and professional engineering staff. We assist global cross-border e-commerce sellers from blueprint/sample prototyping to mass production.

Strict Quality Control: Every piece of polymer battery undergoes rigorous testing (voltage, internal resistance, and physical dimension checks via precise digital calipers) before shipment to guarantee zero-defect delivery.

Secure Global Logistics: Experienced in handling dangerous goods (Class 9) shipping. We provide safe packing solutions (palletized shipping) with optional 100% cargo insurance.

 

Exquisite Craftsmanship & Premium Materials

• • Smart Protection (PCM): Equipped with a high-quality protective circuit safeguarding against over-charge, over-discharge, over-current, and short circuits.
  • Advanced Structural Integrity: Wrapped in premium imported aluminum-plastic film with high-temperature resistant tape (up to 280°C) to ensure ultimate safety under thermal stress.
  • Eco-Friendly Components: Utilizes antioxidant lead-free solder and pure copper wires for stable conductivity and strict global environmental compliance.
  • Flexible OEM Branding: Supports fully customizable inkjet text printing formats for seamless integration into your brand’s supply chain.

Premium Rechargeable 3.7V Li-Polymer Battery Cells by Shenzhen Kingberry

As a leading source manufacturer in Shenzhen, Shenzhen Kingberry Electronic Technology Co., Ltd. delivers high-performance, export-grade lithium polymer cells designed specifically for global wholesalers, B2B buyers, and top-tier cross-border e-commerce brands.

Why Source From Kingberry?

We understand that B2B buyers require reliability, consistency, and strict compliance. That is why our polymer cells feature 100% true rated capacities and accurate physical dimensions. Each cell undergoes thorough multi-stage QA/QC inspection before final packaging.

Our Comprehensive One-Stop B2B Service Includes:

• Low MOQ Support: Flexible minimum order quantities to help you manage inventory risks.
• Customization (OEM/ODM): Tailor-made battery dimensions, lead wire lengths, and connector types (JST/Molex/custom pins) to directly match your product housing.
• Regulatory Documentation: Fast provision of MSDS, UN38.3, and certificate copies to accelerate your logistics and marketplace compliance.
• Reliable After-Sales Support: Dedicated technical support engineers to assist with your power management circuit designs.

Partner with Shenzhen Kingberry today to power your future products with absolute security, high quality, and a win-win price structure. Contact our sales team now for an instant wholesale quotation!