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China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
Specifications
MOQ :
200pcs
Delivery Time :
7-30 Days
Capacity :
4000mAh / 14.4Wh Ultra-High Energy Density (+15% Runtime)
Cycle Life :
600 times Full Cycles with High Capacity Retention
Price :
$4.8/pieces
Continuous Discharge Current :
10A High Drain Output with Low Internal Resistance
Supply Ability :
150000pcs/months
Storage Temp. :
-20~50℃
Positive Terminal :
Button Top
Place of Origin :
China
Cell Grade & Quality Control :
100% Full Inspection, Strict Cell Grading & Capacity Sorting
Model Number :
18650 4000mAh
Customization Services :
Custom PCM/BMS, Private Label/Logo, Custom Packaging
Payment Terms :
L/C,D/A,T/T,D/P
Operating Temp. :
-20~60℃
Compliance & Logistics Support :
CE, RoHS, UN38.3, MSDS Certified (Global Dangerous Goods Shipping Ready)
Certification :
CE,IEC,MSDS,UN 38.3
Voltage :
3.6V
Brand Name :
XTAR
Business Type :
OEM & ODM Manufacturer
Packaging Details :
Color Box Packaging
Protected :
Yes
Description
Overview & Value Proposition
XTAR 18650 3.6V 4000mAh Ultra-High Capacity Rechargeable Li-ion Battery
Engineered for next-generation portable devices, tactical equipment, and high-drain lighting, this cell breaks through conventional capacity limits to deliver true 4000mAh (14.4Wh) in a compact 18650 form factor. Featuring a 10A continuous high discharge rate and an integrated intelligent protective circuit board (PCB), it provides exceptional safety, ultra-long runtime (+15%), and superior consistency for global OEM/ODM manufacturers.
Technical Specifications Table
Parameter Specification Note / Test Condition
Battery Model 18650 Rechargeable Li-ion Battery Cylindrical Cell
Nominal Capacity 4000mAh Tested at 0.2C discharge rate
Nominal Voltage 3.6V (Energy: 14.4Wh) Standard Li-ion platform
Continuous Discharge Current 10A (Max) Continuous high-power output
End-of-Discharge Cut-off Voltage 2.5V Full discharge limit
Standard Charging Current 1.0A – 2.0A (Supports 2A Fast Charge) Fully charged in ~2.5 hours
Built-in Protection Board (PCM) Over-Charge, Over-Discharge, Short-Circuit Integrated inside the cell
Cycle Life 600+ Cycles (Retaining 80% Capacity) Long-term reliability test
Operating Temperature Charge: 0°C ~ 45°C | Discharge: -20°C ~ 60°C Extreme environment ready
Compliance & Safety CE, RoHS, UN38.3, MSDS Full international compliance
Why Wholesale & Distribute XTAR 18650 4000mAh?
  • Compared to standard 3500mAh cells, our 4000mAh chemistry delivers an extra +500mAh capacity, extending device runtime significantly (e.g., adding 15 to 50 minutes on high-lumen tactical & diving lights).
  • Optimized low internal resistance ensures a stable discharge curve even under high 10A draw, avoiding thermal throttling and premature shut-off in sensitive electronics.
  • Equipped with a micro-circuit protection board engineered for less heat loss and enhanced lifecycle preservation.
  • Designed for heavy-duty industrial use, maintaining high capacity retention even after 600 full discharge/charge cycles, drastically reducing replacement and maintenance costs for your end-users.
Full OEM & Private Label Support: We offer custom branding, blister packaging design, and tailored manuals to help you build a premium product line in your local market.
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
Reliable Factory Direct Supply & OEM Services
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.
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
Factory-Direct Quality Assurance: 100% Inspected, 99.7% Satisfaction Rate
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.
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
Partner with Us Today for Direct Factory Quotes
Upgrade your product catalog with factory-guaranteed 1.5V USB-C lithium batteries. Contact our B2B sales team today for volume pricing, OEM customization details, and sample requests.
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
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China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight

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Product Detail
MOQ :
200pcs
Delivery Time :
7-30 Days
Capacity :
4000mAh / 14.4Wh Ultra-High Energy Density (+15% Runtime)
Cycle Life :
600 times Full Cycles with High Capacity Retention
Price :
$4.8/pieces
Continuous Discharge Current :
10A High Drain Output with Low Internal Resistance
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China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight
China Manufacturer 3.6V 4000mAh 18650 Li-ion Battery Built-in PCB Protection 600+ Cycles Custom OEM Battery for Powet tool and Flashlight

ShenZhen XTAR Electronics Co., Ltd

Verified Supplier
1 Years
guangdong, shenzhen
Since 2006
Business Type :
Manufacturer
Main Products :
AA Batteries, AAA Batteries, 1.5V AA Batteries
Total Annual :
20000000$-30000000$
Employee Number :
100~150
Certification Level :
Verified Supplier
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