4S 14.8V 12A Li-Ion Battery Charger Board for 18650 Cells
4S 14.8V 12A Li-Ion Battery Charger Board for 18650 Cells
4S 14.8V 12A Li-Ion Battery Charger Board for 18650 Cells
Power your projects with confidence using this compact and reliable 4S Li-Ion Battery Charger Board. Engineered for 4-series 18650 lithium-ion battery packs, this board delivers a stable 14.8V / 12A charging solution with a precise charge voltage of 16.8V–17V — perfect for DIY electronics, battery pack builds, robotics, and computer UPS applications.
With its ultra-slim SMD design (72 × 17 × 3.0mm), this board fits neatly into tight enclosures while handling high-current charging tasks. Compatible with standard 3.7V 18650 cells wired in a 4S configuration (up to 16.8V nominal), it's a go-to component for engineers, hobbyists, and makers alike.
Made in Mainland China.
Key Features
- 4S Configuration: Designed for four 3.7V Li-Ion cells wired in series (14.8V nominal / 16.8V fully charged)
- High Current Output: Supports up to 12A charging current for fast, efficient battery pack top-ups
- Charge Voltage: 16.8V–17V input charge voltage for accurate cell balancing
- Wide Operating Temperature: Rated from -40°C to +85°C — reliable in demanding environments
- Compact SMD Form Factor: Just 72 × 17 × 3.0mm — easy to integrate into custom enclosures and PCB assemblies
- No High-Concern Chemicals: Clean component materials for safer handling and disposal
- Condition: Brand new
- Quantity: 1 board per order
Technical Specifications
| Configuration | 4S (4-Series Li-Ion) |
| Nominal Battery Voltage | 14.8V (4 × 3.7V cells) |
| Max Charge Current | 12A |
| Charge Input Voltage | 16.8V – 17V |
| Dimensions | 72 × 17 × 3.0mm |
| Package Type | SMD |
| Operating Temperature | -40°C to +85°C |
| Condition | New |
| Origin | Mainland China |
Great for Use With
This charger board pairs well with a range of DIY electronics and power projects. If you're building or maintaining your own tools and kits, you may also find these related products useful:
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Learn more: ENERGY STAR product efficiency guidance
Frequently Asked Questions
Q: What battery configuration is this 4S 14.8V charger board designed for?
A: This board is designed for a 4S (4-series) lithium-ion battery configuration, which means four 3.7V 18650 cells connected in series, giving a nominal pack voltage of 14.8V and a full-charge voltage of 16.8V. It supports a maximum charging current of 12A.
Q: What is the required input charge voltage for this board?
A: The board requires a charge input voltage of 16.8V to 17V. Always use a regulated power supply within this range to ensure safe and accurate charging of your 4S Li-Ion battery pack.
Q: Can this charger board be used in extreme temperature environments?
A: Yes. The board is rated for an operating temperature range of -40°C to +85°C, making it suitable for use in a wide variety of environments, from cold storage applications to high-heat industrial or DIY setups.
Q: Is this board compatible with 18650 lithium-ion cells only?
A: This board is optimized for standard 3.7V 18650 Li-Ion cells in a 4S configuration. It may work with other 3.7V Li-Ion cell formats wired in a 4S setup, but always verify compatibility with your specific cells before use.