A compact single-slot charger designed for 3.6V Li-ion batteries — including the 18650 and 18350 formats commonly used in wireless tattoo machines and detachable battery grips. It features an electronic display for monitoring charging and built-in protections against short circuits, reverse polarity, and overcharging. It is a practical choice both for the artist working wirelessly who needs a simple charging station in the studio, and for anyone using cylindrical rechargeable Li-ion batteries.
What batteries can I charge with this charger?▾
It is compatible with 3.6V Li-ion rechargeable batteries in the following formats: 10440, 14500, 14650, RCR16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 26500 and 26650. The list also covers 18650 and 18350, the most common sizes for wireless tattoo machines and portable power supplies with detachable cells. It is not intended for non-rechargeable batteries or cells with a chemistry other than Li-ion.
Can I charge two batteries at the same time?▾
No — the Slim model has a single slot, so it charges only one cell at a time. If you work heavily with wireless machines and need continuous flow, the practical solution is to rotate two cells (one in the machine, one charging) or get a second charger.
How is the charger powered?▾
Via the USB cable included in the package. A wall adapter is not included in the package contents (which consist of the charger, USB cable, and user manual), so you connect it to any USB source you already have: a wall adapter, laptop USB port, or USB power outlet.
Is it safe to leave the battery charging overnight?▾
The charger has protection against overcharging, short circuits, and reverse polarity, which greatly reduces risks. However, the universal good practice with Li-ion batteries is not to leave charging completely unattended for long periods — the safest approach is to charge when you can check on it periodically and remove the cell once finished.
How do I maintain the charger in a tattoo studio?▾
Keep it permanently in a clean area, away from the work station, to avoid contamination. Do not touch it with gloves worn during work. For cleaning, disconnect it from power, wipe the casing with a slightly damp cloth, and keep the slot contacts clean and dry — do not pour disinfectant directly on the device and do not allow liquid to enter the slot.
How do I know when charging is complete?▾
The charger has an electronic display that shows the charging process status, and the overcharge protection stops powering the cell when it is full. For the exact meaning of the display indications, consult the included user manual.
