Li-ion

3.7V 32650 6500mAh Lithium Battery for Energy storage systems, solar street lights, portable power stations

Parameter	Specification
Item	General Parameter
Nominal Capacity	6500mAh
Nominal Voltage	3.7V
Voltage at end of Discharge	2.75V
Charging Voltage	4.2±0.03V
Internal Impedance	≤20mΩ
Standard charge	Constant Current 0.2C5A Constant Voltage 4.2V 0.01 C5A cut-off
Standard discharge	Constant current 0.2 C5A end voltage 2.75V

CB, CE, UL, UN38.3, MSDS, IEC61000, IEC62133, EU2023/1542

Request a quotationDatasheet unavailable

Product overview

3.7V 32650 6500mAh Lithium Battery Manufacturer in China | Battery Manufacturers in China & Battery Supply Factory

VTCBATT is a trusted manufacturer of 3.7V 32650 6500mAh lithium batteries in China, delivering high-capacity cells designed for stable performance and long cycle life. Ideal for energy storage systems, solar lighting, industrial equipment, and backup power applications, our batteries ensure reliable and efficient operation. With advanced production lines and strict quality control, all products meet international certifications such as CE, RoHS, and UN38.3. VTCBATT also provides flexible OEM/ODM services, including customized capacity, configurations, and packaging to support diverse B2B project requirements worldwide.

01

Extreme Capacity for Unmatched Runtime

The VTCBATT 32650 battery redefines the runtime of portable power with its astonishingly large 6500mAh capacity. Compared to smaller cells, it provides significantly longer single-charge runtimes for power-hungry devices, dramatically reducing charging frequency and ensuring you always have power at critical moments. It is the ultimate solution for high-energy applications demanding lasting performance.

02

Robust Power Output for Demanding Devices

The physical dimensions of the 32650 offer a substantial physical upgrade over common smaller cells, allowing it to maintain a more powerful power output. Combined with its massive capacity, it becomes a versatile energy hub. Whether powering heavy-duty industrial tools, large flashlights, or electric mobility devices, the cell provides robust and consistent voltage and current under load.

03

Exceptional Cycle Life and Brand Trust

The VTCBATT 32650 Lithium-ion cell is specifically engineered for durability. Its premium lithium chemistry can withstand hundreds of charge-discharge cycles without significant performance degradation, offering you long-term value and reliability. Backed by the reputation of the VTCBATT brand, you can rely on it for critical applications such as medical devices, security systems, and high-end backup power.

Technical insight

Product and application details

backup power systems

The 6500mAh capacity ensures extended runtime for critical infrastructure during prolonged grid outages without frequent recharging.

electric tools

An internal impedance of 20mΩ supports the high pulse currents required by heavy-duty industrial power tools during operation.

emergency lighting

A stable 3.7V nominal voltage maintains consistent brightness in emergency fixtures until the 2.75V discharge cutoff is reached.

Energy storage systems

High capacity cells store significant energy for solar arrays, reducing the total number of series-parallel combinations needed.

industrial devices

The robust 6500mAh rating provides sustained current for automated machinery, preventing voltage drops during continuous operational cycles.

marine equipment

Durable construction and stable voltage output withstand the harsh, vibrating environments typical of marine navigation and communication gear.

portable power stations

Large capacity enables multiple full charges for consumer electronics, making it ideal for camping and off-grid adventures.

solar street lights

High energy density allows for smaller form factors while still powering LED arrays through long winter nights.

VTCBATT is a trusted manufacturer of 3.7V 32650 6500mAh lithium batteries in China, delivering high-capacity cells designed for stable performance and long cycle life. Ideal for energy storage systems, solar lighting, industrial equipment, and backup power applications, our batteries ensure reliable and efficient operation. With advanced production lines and strict quality control, all products meet international certifications such as CE, RoHS, and UN38.3. VTCBATT also provides flexible OEM/ODM services, including customized capacity, configurations, and packaging to support diverse B2B project requirements worldwide.

VTCBATT is a trusted manufacturer of 3.7V 32650 6500mAh lithium batteries in China, delivering high-capacity cells designed for stable performance and long cycle life. Ideal for energy storage systems, solar lighting, industrial equipment, and backup power applications, our batteries ensure reliable and efficient operation. With advanced production lines and strict quality control, all products meet international certifications such as CE, RoHS, and UN38.3. VTCBATT also provides flexible OEM/ODM services, including customized capacity, configurations, and packaging to support diverse B2B project requirements worldwide.

Factory capability

VTCBATT Production and Service

VTCBATT not only focuses on customized design and excellent service to meet the diverse demands of different customers, but also devotes itself to precise and standardized manufacturing in every process to ensure the highest-quality batteries. Meanwhile, VTCBATT provides comprehensive support from pre-sales to after-sales, focusing on customer feedback to establish long-term and win-win cooperation. VTCBATT professional sales and technical engineer teams will be your custom battery experts for reliable and responsive project support.

▶

Modern Manufacturing

From raw materials mixing to cell testing, VTCBATT adopts automated manufacturing processes to improve production efficiency and battery quality, safety, and reliability. The manufacturing process is monitored and tested before material moves to the next procedure.

▶

Trusted by Global Customers

Over the past 20 years, VTCBATT has built partnerships with customers in more than 50 countries. Reliable quality, responsive service, and tailored battery solutions support long-term cooperation with equipment manufacturers, distributors, and brands.