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7.4v lithium battery
What is a 7.4V Lithium Battery?
A 7.4V lithium battery is a rechargeable battery pack consisting of two 3.7V lithium-ion or lithium-polymer cells connected in series (2S configuration). This configuration provides a higher voltage platform, making it ideal for devices requiring more power output while maintaining a compact and lightweight structure. 7.4V lithium batteries are widely used in robotics, medical electronics, wireless communication systems, security equipment, and various industrial and consumer-grade portable devices. For OEMs and solution providers, 7.4V packs offer a perfect combination of performance, size, and efficiency.
Higher Voltage, Higher Energy Output
With a nominal voltage of 3.8V and a fully charged voltage of 4.35V, these lithium batteries offer increased energy storage per cell, resulting in longer device operation and reduced need for multi-cell configurations. This is particularly valuable for design teams seeking power-efficient solutions in slim formats. 3.8V lithium batteries also provide fast charging, stable discharge curves, and reliable cycle life ranging from 500 to 1000+ cycles depending on usage and charging strategy. Their lightweight structure and high voltage efficiency are ideal for modern electronics that require compact yet powerful power sources.
Custom 7.4V Lithium Battery Packs from KRL Power
As a leading 7.4V lithium battery manufacturer, KRL Power offers fully customized battery pack solutions tailored to meet your project’s voltage, capacity, size, and communication interface needs. Our engineering team supports a wide range of configurations including:
- Lithium polymer (LiPo) or cylindrical Li-ion cell structures
- PCM/BMS with overcharge, over-discharge, overcurrent, and thermal protection
- Communication-ready battery packs (SMBus, CAN, I2C, UART available)
- Custom enclosures, connectors, and wiring harnesses
- Certifications: UN38.3, CE, RoHS, IEC62133, UL
With more than 20 years of industry experience, we support clients through the full product lifecycle—from prototyping and small batch testing to mass production and after-sales support.
Send Your Inquiry Today
Choosing KRL Power as your 7.4V lithium battery manufacturer means working with a professional team that understands industrial standards, application environments, and the need for reliable power. Our batteries are trusted by customers in healthcare, logistics, communications, automation, and consumer electronics. With fast engineering response, flexible OEM/ODM support, global logistics, and stringent quality control, we ensure that your energy solution is delivered with confidence—ready for real-world performance, safety, and scalability.
Why Choose 7.4V Lithium Batteries for Your Business?
Reliable Voltage Platform for Dual-Cell Designs and Scalable Power Systems
7.4V lithium batteries are typically configured with two 3.7V cells in series (2S) and are widely used in mid-power applications across consumer electronics, medical devices, robotics, and security systems. For businesses seeking reliable voltage performance, long service life, and flexible integration, 7.4V lithium battery packs offer a proven, efficient solution. Here’s why they are the preferred choice in industrial and commercial energy designs:
Balanced Voltage Output for 2S System Design
With a nominal voltage of 7.4V, these batteries are ideal for applications that require a mid-range voltage—higher than single-cell systems but lower than large series packs. This makes them perfect for drones, mobile instruments, portable medical devices, and compact robots that need more power without complexity.
Excellent Compatibility with Embedded Power Systems
7.4V battery packs integrate easily into standard circuit designs and power management systems, reducing the need for voltage converters. They are compatible with most DC-powered electronics and come with optional PCM/BMS for protection and control.
Stable Discharge and Long Cycle Life
Built with high-quality 18650 or lithium polymer cells, 7.4V batteries deliver stable discharge rates, excellent thermal control, and up to 1000–2000 charge cycles. This reliability ensures long-term performance in commercial-grade equipment and continuous-duty environments.
Complete OEM/ODM Service for Volume Orders
Our factory supports full customization of voltage, capacity, size, connector type, and PCM/BMS integration. From engineering samples to mass production, we provide rapid prototyping, quality-controlled manufacturing, and global delivery support, meeting the specific needs of OEM clients across industries.
7.4V Lithium Battery Applications
Our 7.4V Lithium Battery solutions—typically based on 2-cell (2S) lithium-ion or lithium-polymer configurations—offer stable mid-range voltage, excellent energy density, and reliable performance in portable and embedded systems. Designed for OEMs, integrators, and equipment manufacturers, these batteries are ideal for industrial, security, medical, and consumer electronics requiring consistent 7.4V power delivery with compact size and long cycle life.
7.4V lithium batteries are commonly used in portable security cameras, access control panels, wireless alarm systems, and smart intercoms. They ensure stable power during outages or remote deployment scenarios, supporting 24/7 monitoring.
Portable ultrasound scanners, handheld ECG monitors, infusion pumps, and other mobile medical tools benefit from 7.4V batteries’ reliable discharge and certified safety performance, meeting healthcare device requirements.
From professional walkie-talkies to satellite communication units, 7.4V lithium batteries provide extended talk time, fast recharge, and lightweight integration—making them ideal for field personnel and emergency response teams.
Barcode scanners, handheld testers, POS terminals, and other battery-powered work tools use 7.4V lithium packs for uninterrupted daily operation, balancing output power with compact battery size for ergonomic use.
7.4V Lithium Battery Solutions for Dual-Cell Compact Power Systems
Looking for efficient power solutions without long lead times? Our 7.4V Lithium Battery series combines two cells in series to deliver stable voltage, high energy density, and reliable performance, ideal for portable electronics, communication devices, and compact industrial tools.
As a professional manufacturer of 7.4V lithium batteries, we ensure reliable supply, competitive pricing, and expert technical support. Whether you need samples for evaluation or bulk procurement for mass production, we are ready to support your business.
Submit your application requirements now, and our team will match you with the right battery solution efficiently.
7.4V Lithium Battery – Frequently Asked Questions
How many cells are in a 7.4V lithium battery, and can it be replaced with another voltage?
It typically consists of two 3.7V cells in series. Whether it can be replaced depends on your device’s voltage, current, and size requirements—consult with technical support before substituting.
Can I customize the size and capacity of a 7.4V battery for my device?
Yes. We offer OEM/ODM services including custom dimensions, voltage, capacity, casing, and connectors to ensure full compatibility with your device.
What certifications does a 7.4V lithium battery have? Is it export-ready?
Our 7.4V lithium batteries are certified to UL, CE, FCC, UN38.3, ROHS, IEC62133, MSDS, making them fully compliant for export to the US, EU, Japan, Middle East, and more.
