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18650 Battery charger with 2 x 3.7V Batteries
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A dual-slot 18650 battery charger bundled with two 3.7 V 2000 mAh lithium-ion rechargeable batteries. The charger features overcharge protection circuitry to...
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A dual-slot 18650 battery charger bundled with two 3.7 V 2000 mAh lithium-ion rechargeable batteries. The charger features overcharge protection circuitry to safely charge standard 18650 cells, making it a convenient all-in-one kit for powering portable electronics projects.
Key Features
- Dual-Slot Charger – Charge up to two 18650 batteries simultaneously
- Overcharge Protection – Built-in circuitry prevents overcharging for safe operation
- Two Batteries Included – Ready to use out of the box
- Compact Design – Portable and travel-friendly
Battery Specifications
- Chemistry: Li-Ion
- Form Factor: 18650
- Nominal Voltage: 3.7 V
- Capacity: 2000 mAh per cell
- Energy: 7.4 Wh per cell
Ideal For
- Arduino and microcontroller projects
- LED torches and flashlights
- Portable electronics and DIY builds
- Keeping spare charged batteries on hand
Package Contents
- 1× Dual-slot 18650 battery charger
- 2× 18650 3.7 V 2000 mAh Li-Ion rechargeable batteries
Warning: Only use with 18650 Li-Ion cells. Do not short-circuit, puncture, or incinerate batteries. Do not expose to temperatures above 60°C.
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- overcharge protection
- Overcharge protection is a battery safety feature that stops charging once the cells reach their safe maximum voltage. It matters for any rechargeable battery or charger, because leaving cells on charge past full can shorten battery life or create a safety hazard, especially with lithium chemistries.
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