China 7.4V 2000mAh 18650 Lithium Ion Battery Pack Rechargeable Lithium Power Pack for Portable Devices for sale

7.4V 2000mAh 18650 Lithium Ion Battery Pack Rechargeable Lithium Power Pack for Portable Devices

Price Negotiable

Price: Negotiable

MOQ: 100pcs

Delivery Time: 7-10workdays

Brand: RESKY

Product Description

Power 18650 Lithium Cell 7.4V 2000mAh Rechargeable Lithium Ion Battery Pack

Designed for portable POS systems and small heating/therapy devices, this rechargeable lithium-ion battery pack offers reliable power with advanced safety features.

Technical Specifications

Model	18650-2S1P
Nominal Voltage	7.4V
Nominal Capacity	2000mAh
Size	Customized
Max Charge Current	0.5C
Charging Method	Constant current 1C to 8.4V, then charge with constant voltage 8.4V till charge current less than 0.01C
Max Discharge Current	1C
Discharge Cut-off Voltage	5V (over-discharge detection voltage of PCM)
Operating Environment	Charging: 0°C ~ 45°C; 65±20%RH Discharging: -20°C~60°C; 65±20%RH
Storage Environment	-20°C~45°C; 65±20%RH
Lifespan (80% Prime Capacity)	>500 cycles

Key Features

7.4V Standard Voltage: Compatible with most small heating and therapy devices, offering broad compatibility for heat-therapy braces, compact heated apparel, and portable therapeutic devices.
18650 Lithium Cells: Industrial-grade power cells with low internal resistance, minimal heat generation, long lifespan, and resistance to swelling—more durable than standard soft-pack batteries.
2000mAh Capacity: Lightweight and compact design provides sufficient runtime for daily heating and therapy needs without adding bulk.
Integrated Protection Board: Built-in safeguards against overcharging, over-discharging, over-currents, short circuits, and overheating for enhanced safety.
Compact Size: Easy to install in braces, waistbands, and vest pockets with hassle-free portability.
Stable Discharge & Uniform Heating: Consistent voltage output ensures even heat distribution across heating elements for comfortable tactile experience.
High Cost-Effectiveness: Moderate cost with mature mass production capabilities, ideal for consumer-grade product applications.

Applications

Consumer Electronics

Flashlights: High-power tactical flashlights providing long-lasting, bright light output reaching hundreds of meters.
Portable Chargers (Power Banks): Multiple charging cycles for smartphones, tablets, and small electronics.
Laptops: Extended battery life for portable computing devices.
Bluetooth Speakers: Power for audio amplification and wireless connectivity features.
E-readers: Weeks of operation on a single charge due to compact size and high energy density.

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