4000mah 18650 battery
| Model | 18650 |
| Voltage | 3.7V |
| Capacity | 4000mAh |
| Max Size | 18.2mm*65.5mm |
| Operating Temperature | -20℃ to 60℃ |
| Standard Charge Rate | 0.5C |
| Standard Discharge Rate | 1C |
| Configuration | 1S2P |
| Weight | 65.5g |
4000mah 18650 for RC Models, IOT Devices, and Smart Devices
Featuring high-energy density and compact size, 4000mah 18650 lithium ion battery is high-capacity, small-size and lightweight to supply long-lasting power to satisfy the runtime of different applications. The 4000mAh lithium ion battery can support a 3C continuous discharge current as a strong power supply for Robotics, Portable Equipment, GPS trackers, Medical Devices, IOT Devices, drones, and UAVs.
Long Cycle Life
Based on 0.5C/1C cycling, the VTCBATT 18650 battery 4000mah 3.7 v can maintain over 80% capacity after 500 cycles and totally reach 1000 times cycle life.
Temperature Performance
VTCBATT 18650 battery 4000mah 3.7 v can be discharged from -20℃ to 60℃.
This wide temperature range performance enables the battery to operate in many conditions.
Different Discharge Rate
VTCBATT 18650 battery 4000mah 3.7 v can be discharged in different rates of 0.2C,0.5C,1C,2C,3C to meet different power consumption.
Low Self Discharge Rate
After 30-day and 60-day storage, there is slight 1%-2% slight voltage decrease under 50% SOC at 25°C.
Customization
VTCBATT can support full customization of the 4000mah 18650 battery in different 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 ion battery proposal.
Full Certification & Extended Warranty
VTCBATT 18650 batteries 4000mah 3.7 v 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.
VTCBATT 18650 battery 4000mah 3.7 v passed all the major global certifications, such as CB, CE, EN61000,IEC62133,MSDS.UN38.3,ROHS,UL,BIS,KC Certification,which makes your product more competitive.
Compared to a normal 12-month warranty, VTCBATT 18650 batteries have 14-month warranty and two extra months for shipping and customs clearance ,which ensure the customer’s profit.
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 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 for 4000mah 18650 battery
