18650 Lithium Battery Charger Board 4056 – 6-Channel 5V 1A PCB
18650 Lithium Battery Charger Board 4056 – 6-Channel 5V 1A PCB
LOTHYE 18650 Lithium Battery Charging Module – 6-Group Parallel Array
Power up to six 18650 lithium cells simultaneously with this compact 4056-based PCB charging board from LOTHYE. Featuring six independent parallel charging groups, each delivering 1A at 4.2V, this board is ideal for DIY battery packs, electric scooter builds, RC projects, and portable power assemblies. The common-ground output design allows modules to be daisy-chained in parallel for even higher combined output current.
Key Features
- 6 Independent Parallel Groups: Each channel outputs up to 1000mA (1A), giving a combined array output of up to 6A total when all slots are in use.
- 5V USB-Compatible Input: Accepts 5V–6V input (standard 5V USB power supply compatible) — requires an external 5V 6A transformer (not included).
- Precise 4.2V Output: Regulated output voltage of 4.2V (±1%) for safe, accurate lithium cell charging.
- LED Status Indicators: Red LED during charging; green LED (steady or flashing) when fully charged — easy to monitor at a glance.
- Parallel Expandable: Common-ground design lets you connect multiple boards in parallel to scale output current further.
- Compact Form Factor: Dimensions: 40mm × 67mm × 10mm — fits neatly into tight enclosures and custom builds.
Specifications
| Input Voltage | 5V – 6V DC |
| Output Voltage | 4.2V (±1%) |
| Output Current (per channel) | 1A (1000mA) |
| Number of Charging Channels | 6 (independent, parallel) |
| Status Indicator | Red = Charging / Green = Full |
| Board Dimensions | 40mm × 67mm × 10mm |
| Compatible Cell Type | 18650 Lithium-Ion |
What's in the Box
- 1× PCB Charging Board (battery box and batteries NOT included)
Important Usage Notes
- Do not exceed 6V input — overvoltage or reverse polarity will damage the chip.
- Do not reverse the output polarity to the battery.
- Multiple boards may be connected in parallel only — do NOT connect in series when charging batteries.
- This board does not include a transformer. A 5V 6A power supply must be provided separately by the user.
Made in Mainland China.
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Frequently Asked Questions
Q: How many 18650 lithium batteries can this charging board charge at once?
A: This 4056-based PCB charging board features 6 independent parallel groups, allowing you to charge up to 6 x 18650 lithium-ion batteries simultaneously, each receiving a dedicated 1A (1000mA) charge current at 4.2V output.
Q: What power supply do I need to run this 18650 lithium charger board?
A: You need an external 5V 6A DC power supply (transformer). The board accepts 5V–6V input. Do not exceed 6V, as overvoltage will damage the onboard chip. The transformer is not included with this board.
Q: Can I connect multiple 4056 charger boards in parallel to increase current output?
A: Yes — because the output uses a common ground design, multiple boards can be connected in parallel to increase combined output current. However, do NOT connect boards in series when charging batteries, as this can cause damage.
Q: How do I know when the 18650 batteries are fully charged?
A: The board has built-in LED status indicators. A red LED lights up during active charging. When a cell is fully charged, the LED switches to green (steady on or flashing), so you can easily monitor each channel's charging status.