Battery Holder for 18650 3.7V

Single 18650 Li-Ion Cell 3.7V Output: Engineered to hold a single 3.7V 18650 rechargeable lithium-ion battery, delivering reliable nominal 3.7V (4.2V max) power to high-drain microcontrollers, sensors, and DIY electronics.

Pre-Stripped Color-Coded Lead Wires: Pre-wired with flexible red (positive) and black (negative) insulated copper lead wires for immediate soldering onto circuit boards, prototyping pads, or wire connectors.

Open-Frame Compact Footprint: Open-top plastic body provides minimal weight overhead and allows rapid tool-free battery insertion, visual inspection, and thermal dissipation during discharge.

High-Tension Coil Spring Contacts: Durable nickel-plated spring terminals maintain continuous physical contact pressure against battery terminals, preventing power dropouts under vibration or movement.

Molded Polarity Identification: Internal base tray floor features clear positive (+) and negative (-) orientation icons to prevent reverse battery placement and protect connected electronics.

Integrated Base Mounting Holes: Equipped with pre-drilled countersunk mounting holes on the base plate for easy screw attachment inside project boxes, robot chassis, or custom enclosures.

Body Material: High-impact, heat-resistant black composite plastic.

Terminal Material: Nickel-plated steel spring contacts with color-coded copper lead wires.

Technical Specifications:

Cell Support: 1x 18650 Li-ion Cell (3.7V nominal output).

Lead Wire: Approx. 15cm color-coded insulated lead wires.

Color: Black.

Usage Advice: Verify cell polarity alignment before placing an 18650 battery into the cradle and making connections to sensitive logic circuits.

Maintenance: Keep spring contacts clean and dry; wipe gently with isopropyl alcohol if dust or flux residue accumulates over time.

Essential Single-Cell 3.7V Li-Ion Power Mount: Position as a foundational single-cell 3.7V battery cradle for IoT modules, portable power systems, ESP32/Arduino projects, and custom flashlight builds.

Highlight Ready-to-Solder Leads & Open Access: Emphasize how pre-wired leads and open access simplify assembly and testing in high-drain rechargeable electronic designs.

Recommended Cross-Sell Add-ons: Pair with 1 x 18650 Battery Holder SMD, 2 x 18650 Battery holder Case, 18650 7.4 battery box with DC plug, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Battery Holder & Cases collection page under lithium-ion 18650 cell holders.