High‑capacity 3.7V 4400mAh 18650 rechargeable lithium‑ion battery pack with bare red‑black wires. Great for LED lights, portable speakers, sensors, DIY electronics and replacement power supply

Basic Properties

Place of Origin: Shenzhen, China

Brand Name: MEISAEN

Certification: UN38.3 MSDS IEC62133 CE ROHS

Trading Properties

Minimum Order Quantity: 1000PCS

Payment Terms: T/T

Supply Ability: 100000pcs

NMC Battery Pack

Specifications

No custom attributes available for this product.

Product Description

Short Product Description

This 3.7V 4400mAh high‑capacity 18650 lithium‑ion battery pack is fitted with bare wire terminals for flexible wiring. Built‑in protection circuit, ideal for custom power solutions and replacement of 3.7‑volt equipment batteries.

Full Product Description

Product Overview

This 3.7V 4400mAh 18650 lithium‑ion battery pack is assembled from premium 18650 cells with integrated protection board. Equipped with exposed red and black bare wires, supporting custom wiring for your projects. Features large storage capacity, low self‑discharge and stable output performance, perfect for industrial, consumer and DIY electronic applications.

Main Application Scenarios

✅ Portable LED lamps & LED strip lights

✅ Bluetooth portable speakers

✅ Wireless sensors & monitoring equipment

✅ Hand‑held testing instruments

✅ DIY electronic projects, robot models

✅ Other 3.7V portable electronic gadgets

Product Specification Table

Item	Parameter
Model	18650‑3.7V‑4400mAh
Nominal Voltage	3.7V
Nominal Capacity	4400mAh
Cell Type	18650 Lithium‑ion Cell
Terminal	Bare Red & Black Wire Leads
Charge Cut‑off Voltage	4.2V
Discharge Cut‑off Voltage	2.75V
Rechargeable	Yes
Typical Cycle Life	≥500 charge‑discharge cycles
Protection Function	Over‑charge, over‑discharge, over‑current, short‑circuit protection

Important Safety Notice

⚠️ Must use dedicated 4.2V lithium‑ion battery charger only.

⚠️ Strictly avoid short‑circuiting, piercing, squeezing or disassembling the battery pack.

⚠️ Keep away from high‑temperature, open‑fire and humid surroundings.

⚠️ Confirm positive‑negative polarity before wiring; professional soldering is recommended.

High‑capacity 3.7V 4400mAh 18650 rechargeable lithium‑ion battery pack with bare red‑black wires. Great for LED lights, portable speakers, sensors, DIY electronics and replacement power supply

Rechargeable Lithium Battery

18650 Lithium Ion Battery

NMC Battery Pack

Short Product Description