13.2V–16.8V 4S 18650 Lithium Battery Level Indicator Board – LED State-of-Charge Display Module for 4-Series Li-ion & LiPo Packs in Pakistan

Overview

When building custom 4-series (4S) lithium-ion or LiPo battery packs—such as 14.8V portable power banks, RC vehicle packs, custom LED lighting rigs, or backup energy sources—knowing your exact remaining charge state is critical to prevent over-discharge. Guessing battery levels risks damaging expensive cells. The 13.2V–16.8V 4S 18650 Battery Level Indicator Board provides a clear, real-time visual power display, allowing you to check your pack’s status at the push of a button.

Key Features

• Calibrated for 4S Lithium Packs: Specifically tailored for 4-string 18650 battery setups, measuring voltage ranges from 13.2V (low) up to 16.8V (fully charged).

• Multi-Segment LED Display: Features vibrant LED blocks that visually break down your remaining charge percentage at a glance.

• On-Demand Push Button Switch: Integrated test button activates the display only when pressed, conserving power during standby operation.

• Compact & Lightweight Circuit Board: Miniaturized footprint integrates seamlessly into custom battery pack enclosures, heat-shrink wrappers, or device faceplates.

Technical Specifications

Common Applications

• Custom Battery Pack Building: Essential finishing module for DIY 4S 18650 packs used in portable speakers, tools, and backup lights.

• Portable Electronics Testing: Provides quick visual status checks on mobile field equipment and robotic power sources.

Note to customers: Connect the positive (+) and negative (-) solder pads directly to the corresponding battery terminals of your 4S pack to ensure accurate readings!