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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 is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- overcharge protection
- A battery safety feature that stops charging when the cells reach their safe maximum voltage. This matters for solar kits because batteries may be connected to a charger for long periods in changing sunlight.
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