Premium 11.1V Lithium Battery Manufacturer & Direct Source Factory

Powering commercial UAVs, portable medical devices, and smart robotics with uncompromising 3S lithium architecture. Backed by 20 years of independent R&D.

High-Performance 11.1V (3S) Lithium Battery Solutions

When standard low-voltage packs fail to deliver the sustained power required by modern medical equipment and professional robotics, off-the-shelf solutions simply aren't enough. As a 20-year source manufacturer, KRL Power engineers precision 11.1V lithium batteries built on a highly efficient 3S (3-series) architecture. This optimal mid-voltage platform provides the robust energy output necessary to drive handheld industrial terminals and commercial drones, ensuring maximum operational reliability without increasing your product's spatial footprint.

Engineered for Enhanced Motor Efficiency and TCO Reduction

Upgrade your power architecture to unlock superior energy throughput and longer runtimes. Depending on the specific Battery Type selected for your application, our 11.1V packs deliver an exceptionally flat discharge curve. This ensures your device's processors and motors receive unfluctuating power from full charge to depletion. Featuring ultra-low internal resistance for rapid charging and a proven cycle life of 500 to 1,000+ deep cycles, our 3S solutions provide the thermal and electrical stability needed to drastically lower your Total Cost of Ownership (TCO).

Custom 11.1V Manufacturing: The KRL Source Factory Advantage

Don't compromise your design to fit generic battery constraints. KRL Power operates as a fully integrated manufacturing hub with an independent R&D center. We offer end-to-end custom engineering, allowing you to select the exact cell formats—from robust 18650/21700 cylindrical arrays to ultra-thin polymer pouch cells. Every custom pack is fortified by our proprietary "Zero-Accident Architecture" BMS, guaranteeing impenetrable protection against electrical faults. Tested and certified for global compliance, our batteries ensure your products are instantly ready for international deployment.

Send Your Inquiry Today

Partnering with a 20-Year Source Manufacturer
With over two decades of dedicated R&D and manufacturing expertise, KRL Power stands as your direct source factory for industrial-grade 11.1V lithium batteries. We completely bypass trading middlemen, providing system integrators and engineers with direct access to custom prototyping, automated mass production, and globally compliant logistics. Our mission is to seamlessly integrate highly reliable, intelligent 3S lithium architecture into your commercial products with absolute confidence.

Why Industry Leaders Upgrade to KRL 11.1V Lithium Batteries?

Mid-Voltage Power Solutions Optimized for System Integration and Industrial Reliability

11.1V lithium batteries—typically composed of three 3.7V cells in series (3S configuration)—offer an ideal balance of voltage, energy density, and structural flexibility. Widely used in security systems, UAVs, portable terminals, and industrial instruments, they serve as the backbone for medium-power applications that demand efficiency, safety, and modular design. Below are the key reasons why 11.1V lithium batteries are trusted by OEMs and industrial clients worldwide:

Ideal Mid-Voltage Platform for Portable Power

The 11.1V nominal voltage effectively bridges the gap between low-power 7.4V systems and bulkier 14.8V setups. It is the perfect dimensional and power sweet spot for handheld industrial tools, inspection robotics, and portable monitors that require higher torque and speed without adding design complexity.

"Zero-Accident Architecture" Smart BMS Integration

Reliability is non-negotiable. Every KRL 11.1V battery pack is fortified by our in-house engineered "Zero-Accident Architecture" Battery Management System (BMS). This proactive hardware delivers millisecond-level protection against overvoltage, thermal spikes, and short circuits, ensuring flawless operation in mission-critical environments.

High Energy Density and Durable Lifecycle

By utilizing premium A-grade cylindrical (18650/21700) or polymer pouch cells, we maximize the energy-to-weight ratio. Depending on your specified Battery Type, our 11.1V packs reliably sustain 500 to 1,000+ deep charge cycles, significantly lowering maintenance costs for industrial and commercial fleets.

Turnkey Source Factory Customization

We don't just assemble; we engineer. From custom capacities, exact casing dimensions, and specific wire gauges to advanced smart communication protocols (SMBus, I2C, CAN), our R&D team handles it all. Every custom pack is rigorously tested to pass global certifications, including UN38.3, CE, UL, RoHS, and IEC62133.

Purpose-Built 11.1V (3S) Lithium Battery Applications

Our 11.1V Lithium Battery solutions—typically built on 3-cell (3S) lithium-ion or lithium-polymer configurations—are engineered to deliver stable, high-performance power for mid-to-high voltage applications. With excellent energy density, long cycle life, and integrated protection options, these batteries are ideal for professional-grade equipment across industrial, medical, security, and consumer sectors. Designed for engineers and OEMs requiring reliable 11.1V platforms, our battery packs support both standard and custom configurations.

Wearable Smart Devices

Ideal for smartwatches, fitness bands, wireless earbuds, and AR glasses, where compactness, light weight, and safety are paramount. Li-Po is the battery of choice for next-gen wearable tech.

Portable Medical Devices & Diagnostics

In healthcare, consistent power saves lives. Our medical-grade 11.1V batteries feature ultra-low self-discharge rates, delivering reliable, uninterrupted power for portable ultrasound machines, mobile patient monitors, and infusion pumps.

Industrial Portable Terminals & Scanners

Built for the rugged demands of the job site. Our 11.1V batteries power professional RFID scanners, handheld testing instruments, and portable NDT (Non-Destructive Testing) equipment, providing unfluctuating power for extended operational shifts.

Commercial UAVs & Smart Robotics

he industry standard for lightweight mobility. Our high C-rate 11.1V (3S) Li-polymer packs deliver the aggressive burst currents required for commercial mapping drones, automated inspection robots, and camera stabilizers, ensuring smooth motor control and long runtimes.

Accelerate Your Engineering with KRL's 11.1V Power Solutions

Looking for highly efficient mid-voltage power solutions without the frustrating supply chain delays? As a professional source manufacturer, KRL Power eliminates the middlemen. We ensure competitive factory-direct pricing, strictly controlled quality, and highly responsive 1-on-1 technical support.

Whether you need rapid custom samples for R&D evaluation or bulk procurement for global mass production, our Shenzhen facility is ready to scale with your business.

Submit your technical requirements today, and our engineers will match you with the optimal battery configuration within 24 hours.

11.1V Lithium Battery – Frequently Asked Technical Questions

How many cells are used to build a KRL 11.1V lithium battery pack?

A standard 11.1V lithium-ion or Li-polymer pack utilizes a 3S configuration (3 cells connected in series). With each cell having a nominal voltage of 3.7V, three cells in series yield a nominal system voltage of 11.1V. Please note that a fully charged 11.1V pack will reach a peak voltage of 12.6V.

Can the physical structure and capacity be customized for my product's chassis?

Absolutely. As a fully integrated source factory, spatial optimization is our specialty. We can utilize various cell form factors—from robust 18650/21700 cylinders to highly malleable ultra-thin polymer pouch cells—to engineer an 11.1V pack that perfectly fits your unique 3D constraints.

Do your 11.1V batteries include protection circuits and smart management?

Yes. We never ship unprotected packs for commercial use. Every 11.1V battery includes our proprietary "Zero-Accident Architecture" BMS (Battery Management System). Furthermore, our R&D team can natively integrate smart communication protocols like SMBus or I2C so your host device can monitor real-time battery health.

What is the typical lifespan of a KRL 11.1V lithium battery?

Under standard operating conditions, our high-quality 11.1V packs retain 80% of their original capacity after 500 to 800 charge/discharge cycles. If your application demands extreme longevity, we can recommend specific high-durability Battery Types capable of exceeding 1,000+ deep cycles.