The 4S 18650 Lithium Battery Holder (4-Slot) is a high-capacity power solution designed to hold four 3.7V Li-ion cells in a series configuration. At Electrapac, we recommend this holder for high-power applications that require a significant voltage boost, such as 12V-16V motor systems and portable field equipment.

Product Overview

This quad-slot battery case is pre-wired in Series, combining the voltage of four 18650 cells to provide a nominal output of 14.8V (reaching up to 16.8V when fully charged). Constructed from reinforced ABS plastic, it is built to withstand the weight and heat of four high-capacity cells while maintaining a secure electrical path.

Key Features for Electrapac Customers

• High Voltage Efficiency: Ideal for 12V DC motors, LED strips, and high-performance audio amplifiers that require more than a standard 9V battery can provide.

• Stable Connection: Features premium nickel-plated steel springs that offer low resistance and prevent the batteries from vibrating loose in mobile applications.

• Ready-to-Use Leads: Comes with pre-stripped and tinned wire leads, making it easy to connect to terminal blocks or solder directly to a PCB.

• Modular Design: The flat-back design allows multiple holders to be mounted side-by-side or back-to-back for custom high-voltage battery banks.

• Safety First: Molded polarity markings (+/-) inside each slot ensure you never insert a battery backward, protecting your circuit from damage.

Wiring & Safety Guide

Because a 4S (14.8V) battery pack holds a significant amount of energy, please follow these Electrapac safety guidelines:

1. Matched Cells: Only use four batteries of the same brand, age, and capacity. If one cell is weaker than the others, it can overheat or fail prematurely.

2. Mandatory BMS: We strongly advise using a 4S BMS (Battery Management System) with this holder to handle balanced charging and prevent over-discharge.

3. High Current Warning: If your project draws more than 5A, ensure the 24 AWG wires are upgraded or reinforced to prevent the leads from heating up.

Primary Applications

• 12V Robotics: The perfect power source for L298N or BTS7960 motor drivers requiring high torque.

• Outdoor Lighting: Powering 12V LED floodlights or strip lights for camping and emergency use.

• Portable Audio: Providing the high-voltage rail needed for TPA3116 or similar Class-D amplifiers.

• Field Testing Gear: Powering 12V CCTV cameras, monitors, or wireless transmitters away from a wall outlet.

• Vacuum Robots & Drones: Acting as a replacement or custom power pack for motorized hobbyist equipment.

Why Shop at Electrapac?

We source our 4-Slot 18650 Holders with extra-thick plastic walls to prevent warping under the pressure of the heavy-duty springs. At www.electrapac.com, we provide the heavy-duty power solutions needed for your most ambitious engineering projects.