Li-ion

4000mah 18650 battery

Parameter	Specification
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

✓Certification supportCB, CE, UL, UN38.3, MSDS, IEC61000, IEC62133, EU2023/1542

Request a quotationDatasheet unavailable

Product overview

4000mah 18650 for RC Models, IOT Devices, and Smart Devices | Battery Manufacturers in China & Battery Supply Factory

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.

01

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.

02

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.

03

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.

04

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.

05

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.

Technical insight

Product and application details

Drone

Its 65.5g weight ensures minimal payload impact during extended UAV flight missions requiring sustained energy.

Robotics

The 1C discharge rate supports continuous motor operation for mobile robots navigating complex indoor environments.

Solar Sensor

Operating reliably from -20℃ allows this battery to function in outdoor solar sensor stations during winter.

UAV

The 4000mAh capacity provides sufficient endurance for aerial photography sessions without frequent battery swaps.

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.

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.