3.7V 32650 6500mAh Lithium Battery for Energy storage systems, solar street lights, portable power stations
| 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 |
3.7V 32650 6500mAh Lithium Battery Manufacturer in China
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.
Full Certification & Extended Warranty
VTCBATT Lithium ion batteries meet global certifications including CB, CE, UL, and UN38.3, and offer a 14-month warranty—two months longer than standard—to maximize customer confidence and profit.
CertificationVTCBATT lithium polymer batteries have passed numerous important international certifications, including UL1642, IEC62133, UN38.3, CE, ROHS, BIS and EU2024/1542, CE, ROHS, REACH, and KC certifications.
WarrantyVTCBATT Lithium batteries come with a 14-month warranty, 2 months longer than the standard 12-month warranty, providing extra coverage for shipping and customs clearance. This ensures customer confidence.
CustomizationDifferent sizes,capacities, connectors, discharge rates,and cases. Just inform us of your specific requirement, and our professional engineers can provide you with the customized Lithium battery proposal.
Flexible order quantity to support prototype testing and mass production.
Our technical and sales teams reply to your inquiry within 6 hours.
Test our lithium battery quality and performance before placing bulk orders.
Batteries certified to UL, CE, UN38.3, MSDS, ROHS, IEC62133, and more global standards.
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.
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.
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.
Why Choose VTCBATT?
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 will provide comprehensive support from pre-sales to after-sales, focusing on customers’ feedback to establish long-term and win-win cooperation. VTCBATT professional sales and technical engineer teams will be your best custom battery experts to assist with reliable and fast services at any time.
From the raw materials mixing to the cell test, VTCBATT adopts an automatic manufacturing process to maximize production efficiency and enhance the batteries quality, safety, and reliability. The entire manufacturing process is monitored and 100% tested before flowing to the next procedure to ensure zero defects before delivery.
Over the past 20 years, VTCBATT has built strong partnerships with customers in more than 50 countries worldwide. With reliable quality, responsive service, and tailored battery solutions, we have earned the trust of our clients—many of whom have maintained long-term cooperation and lasting friendships with us for over a decade. Together, we continue to grow and move forward toward a brighter future.
Application
The VTCBATT 3.7V 6500mAh 32650 lithium-ion rechargeable battery is designed for high-capacity, medium- to high-power applications that require stable voltage and reliable performance. With its large cylindrical 32650 format, it is ideal for energy storage systems, solar lighting, portable power stations, industrial equipment, and backup power solutions. This battery supports customized capacity, voltage, and protection configurations to meet specific project requirements. Featuring low self-discharge, long cycle life, and consistent output, the VTCBATT 32650 battery ensures efficient operation, extended service life, and dependable power for demanding industrial and commercial applications.
