4 Cell Li-on Battery Holder 4×18650

Overview

The 4-Cell 18650 Lithium-Ion Battery Holder (4S Series Configuration) is a heavy-duty battery casing designed to house four standard 18650 rechargeable Li-ion cells in series, delivering a robust nominal output of 14.8V DC (and up to 16.8V DC at maximum charge). Engineered for power-hungry robotics, high-torque motor systems, drone ground stations, and DIY portable power banks, this enclosure features high-retention spring contacts and low-resistance terminals to minimize voltage drops under substantial current draw. Constructed from rugged, heat-resistant ABS plastic with clear polarity indications, it ensures safe, organized, and reliable battery containment.

Key Features

• High-Voltage 4S Output: Provides 14.8V nominal and 16.8V peak voltage, providing ample power and head-room for heavy 12V–16V loads.
• Low-Resistance Nickel Contacts: Heavy-duty nickel-plated spring contacts ensure optimal electrical conductivity under high discharge currents.
• Heavy-Duty ABS Housing: Impact-resistant enclosure safeguards delicate lithium cells from mechanical vibration and shocks.
• Permanent Polarity Markings: Molded polarity indicators in each bay prevent hazardous reverse-polarity installation mistakes.
• Versatile Terminal Options: Heavy terminal tabs allow direct soldering of thick silicone cables or integration onto power distribution boards.
• Compact & Symmetrical Footprint: Keeps four high-capacity cells neatly aligned in a space-efficient form factor.

Technical Specifications

• Battery Capacity: 4 × 18650 Lithium-Ion Cells
• Circuit Mode: 4S (Four in Series)
• Nominal Output Voltage: 14.8V DC
• Maximum Output Voltage: 16.8V DC (at 4.2V per cell)
• Minimum Discharge Cutoff: ~12.0V DC
• Housing Material: Fire-retardant ABS
• Contacts: Nickel-plated phosphor bronze
• Dimensions: 80 mm × 78 mm × 21 mm
• Mounting: Screw mounting holes in base

Applications & Use Cases

• Heavy Robotics & RC Vehicles: Powering high-torque DC metal gearmotors, heavy quadrupeds, and tracked rovers.
• Power Inverters & 12V–15V Appliances: Driving DC-to-AC portable inverters and high-power LED searchlights.
• High-Power Audio Systems: Supplying 15V–16V to high-wattage Class-D digital amplifiers (TPA3116D2 2×50W).
• Prototyping BMS Battery Packs: Serving as an organized physical chassis when wiring custom 4S Battery Management Systems (BMS).
• Field Test Benches: Portable high-capacity DC power source for calibrating sensors and field electronics.

What's Included

• 1 × 4-Cell 18650 Li-ion Battery Holder (4S Series Configuration)

Compatibility

• Cells: Accommodates standard 18650 lithium-ion rechargeable cells (3.7V / 4.2V).
• BMS: Ideal for pairing with standard 4S 20A/30A Li-ion BMS protection boards.

MOKWN Recommendation

When your robot motors need more punch than standard 12V can deliver under load, stepping up to a 4S (14.8V–16.8V) configuration gives your motors the necessary torque without bogging down. This 4-cell holder keeps your 18650 cells firmly organized and safely retained. We recommend soldering heavy 18AWG–20AWG wires to its terminals and adding a 4S BMS protection board for balanced charging and short-circuit protection. Order yours from MOKWN today with fast shipping across Egypt!