11.1V 3Ah 18650 Lithium Battery for Car Emergency Jump Starters

11.1V 3AH 18650 lithium battery for car emergency starting power supply

OEM 11.1V 3AH 18650 lithium battery for car emergency starting power supply from China vendor, NS-3S2P-18650-3000 uses 11.1V 3Ah 18650 lithium battery, generally used in UPS backup power supply, electric motorcycle vehicle backup power supply, automotive emergency starting power supply, backup power supply for indoor and outdoor lighting systems, and construction site lighting power supply and other areas. Every time our factory produces a batch of energy storage lithium batteries, it will be tested by the quality supervision and testing center, plus the factory’s own quality inspection. Department testing, the product can be said to enter the market only through the secondary testing, suits for United Kingdom, Russian Federation, Andorra, Chad, Indonesia, New Zealand, Mexico, Singapore, Tanzania and other countries & regions. Please don’t hesitate to email Nuranu once you have car emergency starting power supply 18650 lithium battery customized requirement.

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Specification

The NS-3S2P-18650-3000 is a high-reliability 11.1V 3000mAh (3Ah) lithium-ion battery pack, specifically engineered for the high-current demands of car emergency starting power supplies and backup energy systems. Built using a robust 3S2P configuration of premium 18650 cells, this battery provides the instantaneous power required to revive automotive engines and maintain critical electronic systems during power failures.

As a specialized OEM vendor from China, Nuranu ensures that every battery pack meets the highest safety and performance standards.¹ Whether integrated into a portable jump starter or a UPS backup power supply, the NS-3S2P series delivers stable voltage and exceptional durability for both indoor and outdoor applications.

Technical Specifications

Feature	Specification
Model Number	NS-3S2P-18650-3000
Nominal Voltage	11.1V
Rated Capacity	3Ah (3000mAh)
Battery Type	High-Rate 18650 Lithium-ion
Configuration	3S2P (3 Series, 2 Parallel)
Dimensions	Fully Customized to fit your device
Safety Certification	Secondary Quality Testing (Factory + Supervision Center)
Packing	Insulated Protective PVC

Performance & Quality Assurance

1. Dual-Layer Quality Inspection

We take quality seriously. Every batch of energy storage lithium batteries produced in our factory undergoes a rigorous Secondary Testing Process:

Level 1: Internal Quality Inspection Department testing (voltage, capacity, and impedance matching).
Level 2: Verification by the national Quality Supervision and Testing Center.
This dual-layer approach ensures that only zero-defect products enter the global market.

2. High-Rate Discharge Capability

Designed for automotive emergency starting, this 11.1V pack is capable of delivering the burst of current necessary to crank an engine. Its 18650 cells are selected for their low internal resistance and high-rate discharge efficiency.

3. Integrated Protection System (BMS)

To safeguard the battery and the vehicle’s electronics, the pack includes a comprehensive protection circuit:

Short Circuit Protection: Critical for high-current starting applications.
Overcharge & Over-discharge Protection: Extends battery lifespan and prevents cell swelling.²
Over-current Protection: Prevents damage during unexpected power surges.

Versatile Industry Applications

The 11.1V 3Ah 18650 battery pack is a multi-purpose energy solution suitable for a wide range of emergency and industrial scenarios:

Automotive & Transport: Car emergency starting power supplies, electric motorcycle backup power, and vehicle-mounted electronics.
Emergency Backup: Uninterruptible Power Supplies (UPS) for small electronics and home office gear.³
Industrial & Construction: Construction site lighting power, portable floodlights, and temporary outdoor power stations.
Lighting Systems: Backup power for indoor emergency exits and outdoor solar-integrated lighting.
Portable Electronics: High-power handheld tools and portable communication relays.⁴

Global Supply & OEM/ODM Customization

Nuranu is a trusted global supplier, providing reliable power solutions to diverse markets including:

Europe: United Kingdom, Russian Federation, Andorra.
Asia & Oceania: Indonesia, Singapore, New Zealand.
Americas & Africa: Mexico, Tanzania, Chad, and beyond.

Customization Services:

We specialize in OEM/ODM customized requirements. If your jump starter or lighting system requires a specific physical dimension, custom wire harness, or specific discharge connectors (like EC5 or XT60), our engineering team can provide a tailored solution.

Contact Nuranu Today

Looking for a high-performance 11.1V 3Ah 18650 battery for your car emergency starting product line? Contact us today for wholesale pricing, technical support, and customization details!