Ładowarka ogniw Li-Ion 18650 21700 do akumulatorów cylindrycznych z USB LED

USB cylindrical battery charger

A compact charger designed for charging popular cylindrical lithium-ion (Li-Ion) cells. The device is powered from a standard USB port, so you can charge batteries using wall adapters, power banks, or computer ports.

Key specifications

• Supported Li-Ion cell types: 10440, 14330, 14500, 16500, 18500, 16650, 18650, 21700, 26500, 26650
• Power source: USB port
• Charging voltage: 4.2 V
• Charging current: 500 mA

Benefits

Universal USB power makes the module extremely versatile. Charging is continuously monitored by a built-in LED, which indicates operating status (green: no cell installed or fully charged; red: charging in progress).

• Broad compatibility with many popular cylindrical cell sizes
• Convenient power from a standard USB socket
• Clear battery charge status via the LED indicator
• Compact size for easy transport and storage
• Safe charging voltage suited to lithium-ion cells

Example uses

With support for many cell formats, the charger is a versatile tool in an electronics workshop. It enables fast, safe top-ups for batteries used across many applications.

• Charging batteries for tactical and headlamps
• Topping up cells used in portable electronic devices
• Charging batteries for remote-controlled toys
• Preparing power for custom circuits and electronic prototypes
• Charging cells used in portable fans and radios