1 x 18650 Cell Box, Without Cover

The 1 x 18650 Cell Box is an open battery holder without a cover, made to hold one 18650 lithium-ion cell. It lets you fit and swap the cell without soldering, and the open design keeps the battery visible and easy to reach. It is a simple way to power ESP32, Arduino and other small projects from a single rechargeable cell.

1 x 18650 Cell Box Specifications

• Capacity: 1 × 18650 cell
• Cover: none (open holder)
• Configuration: single cell (1S)
• Output voltage: same as the cell, 3.7 V nominal and about 4.2 V when fully charged
• Cell: not included

1 x 18650 Cell Box Applications

• Battery power for ESP32, ESP8266 and Arduino projects
• Portable sensors and data loggers
• Small robots and DIY gadgets
• Single-cell packs charged with a TP4056 charger module

What's in the Box

• 1 × single 18650 cell holder without cover

Tip: Check the polarity before connecting: the flat end of the cell is negative (−). A single 18650 gives about 3.0–4.2 V, so use a regulator or a boost converter if your board needs a steady 3.3 V or 5 V, and add a protection board if the cell is not protected.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.