Cylindrical 18650 3.7V 2000mAh Lithium Battery Cell with NTC 10K Temperature

Product Specification

18650 3.7V 2000mAh Lithium Battery for Aroma Diffuser & Portable Humidifier

Product Overview

This 18650 3.7V 2000mAh rechargeable lithium-ion battery is specially engineered for portable aroma diffusers, essential oil humidifiers, mini fragrance machines and small household wireless aroma devices.

Featuring stable low-current continuous discharge, ultra-low internal resistance, and consistent voltage output, this battery perfectly matches the long standby and stable working requirements of diffuser equipment. It supports all-day low-power operation, steady mist output, and longer wireless working time, making it the ideal standard power solution for mass production and OEM diffuser brands.

All cells are Grade A original lithium-ion cores with true capacity, no virtual standard, stable consistency and long cycle life. Suitable for B2B bulk procurement, factory assembly, private label and customized battery pack projects.

Core Specifications

• Model: 18650

• Rated Voltage: 3.7V

• Rated Capacity: 2000mAh

• Cell Type: Rechargeable Lithium Ion Cell

• Charging Cut-off Voltage: 4.2V

• Working Discharge Current: Low & stable current (perfect for diffuser)

• Operating Temperature: -10℃ ~ 55℃

• Cycle Life: ≥300 cycles

• Safety Protection: Overcharge, over-discharge, over-current, short circuit protection

• Certifications: CE, RoHS, MSDS, UN38.3 (Full export documents provided)

Key Features for Aroma Diffuser Application

1. Ultra-Stable Low-Power Discharge

Aroma diffusers require long-time low-current stable output. This 18650 2000mAh cell provides constant and smooth voltage delivery during long standby and continuous humidifying work, avoiding intermittent mist, unstable power or sudden shutdown issues.

2. Long Standby & Working Duration

With standard 2000mAh real capacity, the battery greatly improves the wireless working time of portable diffusers. It supports repeated daily charging and long-term cyclic use, effectively improving user experience and product competitiveness for diffuser manufacturers.

3. High Safety for Indoor Household Devices

Built with multiple safety protection functions, the cell prevents short circuit, overheating and over-discharge risks during indoor daily use. The sturdy 18650 cylindrical structure is anti-drop and anti-extrusion, fully safe for household, office and bedroom aroma devices.

4. High Consistency for Mass Production

All cells are strictly sorted with consistent internal resistance, capacity and voltage. Perfect for large-volume diffuser assembly, ensuring uniform product quality and stable batch performance for brand owners.

5. Custom PACK & OEM Service Available

We provide customized battery pack assembly with BMS protection boards, wires, connectors and fixed-length cables according to diffuser structure requirements. Support neutral packing, custom logo printing and OEM private label services for global clients.

Applicable Devices

• Portable aroma diffuser

• Wireless essential oil humidifier

• Mini desktop fragrance machine

• Car aroma diffuser

• Small household ultrasonic humidifier

• Low-power portable smart fragrance devices

B2B Cooperation Advantages

• Factory direct wholesale price, stable stock and fast lead time

• 100% full capacity testing before shipment

• Strict cell sorting for batch consistency

• Complete certification files for global export

• Support OEM, ODM, custom pack and connector modification

• Professional technical support for diffuser manufacturer projects

Short Slogan (for website banner)

3.7V 2000mAh 18650 Lithium Battery — Stable Low-Power Solution for Portable Aroma Diffuser and Humidifier

NTC 10K Temperature Protection

This 18650 3.7V 2000mAh lithium battery can be supplied with an integrated NTC 10K thermistor (10KΩ @ 25°C), enabling real-time temperature sensing and reliable over-temperature protection when combined with a BMS or charger, making it a safer power solution for temperature-sensitive devices.

• NTC 10K thermistor, 10KΩ resistance at 25°C

• Real-time cell temperature monitoring

• Supports over-temperature and over-charge protection

• Optional integration for battery pack and charger projects

• Recommended for aroma diffusers, humidifiers and other devices requiring safe thermal management