4V 5.2Ah Lithium-Ion Battery Pack for Portable Fan with 2×18650 Cells and 10A BM

Specification

Battery Type: Lithium-Ion (Li-ion)

Configuration: 1S2P (3.7V Nominal, 4.2V Max)

Capacity: 5200mAh (5.2Ah)

Cell Type: 18650 3.7V 2600mAh Cells (2pcs)

BMS: 1S 10A Protection Board

Continuous Discharge Current: 10A

Charging Voltage: 4.2V

Output: DC Wire Output (Red +, White -)

Build Type: Heat Shrink Wrapped Pack

Weight: Approx. 100g

Description

This 4V 5.2Ah Lithium-Ion battery pack is designed for portable rechargeable fans and small DC devices. Built using 2pcs 18650 cells in a 1S2P configuration, it provides stable output and good backup time. The built-in 10A BMS ensures safety with overcharge, over-discharge, and short circuit protection. Its lightweight 100g design makes it compact and easy to install in portable devices.

Application

Portable rechargeable fan

Mini DC fan systems

Emergency backup devices

LED lighting systems

DIY battery projects