Description
MS-5D84A 4-Slot Li-ion Battery Charger for 10440–26650 Cells
Portable charger for compatible 3.6/3.7 V Li-ion batteries, with four independent slots and a 5 V USB input. Charging current is shared among occupied slots, so the per-cell current decreases when charging several batteries at once.
🔧 Technical specifications
- Input: USB-A, 5 V ⎓ 1–2 A, from a computer, power bank, or USB adapter
- Charging output: 4.20 V ±0.05 V
- Maximum charging current: 2,000 mA with one battery; 1,000 mA with two; 500 mA total per listed configuration with three or four cells
- Slots: four independent bays
- Compatible formats listed: 10440, 14500, 16340, 16650, 17670, 18350, 18500, 18650, 22650, 26650, and others of compatible chemistry and dimensions
- Status: one LED per slot (red = charging; green = complete)
- Listed protections: over-temperature, overcharge, reverse polarity, and short circuit
- Dimensions: 133 × 90 × 35 mm (L × W × H)
- USB cable: 55 cm integrated cable with USB-A male plug
- Weight: approximately 120 g
💡 Typical applications
- Charging compatible Li-ion 18650/14500 cells for lamps, flashlights, and e-cigarettes
- Charging batteries for drones, cordless tools, and cameras
- Portable maintenance and repair work
- Test benches and prototyping requiring 4.2 V cells
⚙️ Use
- Connect the USB cable to a suitable 5 V source (computer port, wall adapter, or power bank).
- Insert compatible cells, observing the +/− polarity markings.
- Check the slot LEDs: red indicates charging; green indicates charging is complete and the slot has automatically stopped charging.
- Remove the cells after the indicator turns green.
Safety: Use only rechargeable 3.6/3.7 V Li-ion cells that match the charger and slot dimensions. Do not charge damaged, leaking, or swollen cells, or use this charger for other chemistries such as LiFePO₄. Place the charger on a non-flammable surface and monitor charging.
For the fastest listed charge rate, use a USB adapter capable of at least 2 A and charge one battery at a time.
