1 Slots 18650 Battery Box Rechargeable Battery Holder Board for 1x18650 Batteries DIY kit Case

Compact, reliable single-cell 18650 battery holder with integrated PCB board — ideal for DIY electronics, prototyping, and portable power projects.

Key Features

• Holds 1× 18650 Li-ion rechargeable cell (not included)
• Integrated PCB with protection circuit for safe charge & discharge
• Spring-loaded contacts for reliable low-resistance connection
• Standard JST or solder-pad output — breadboard and PCB friendly
• Compact footprint: easy to mount in custom enclosures
• Polarity markings clearly printed on housing

Specifications

• Cell format: 18650 (18 × 65 mm)
• Output voltage: 3.6 V – 4.2 V (cell dependent)
• Max continuous current: up to 3 A (PCB limited)
• Material: flame-retardant ABS plastic

Typical Applications

• Arduino / ESP32 portable power supply
• DIY flashlights, sensors, and IoT nodes
• Robotics and RC projects

Use only genuine, matched 18650 cells. Do not exceed rated current. Keep away from moisture and direct sunlight.