4S Lithium Battery Charger Adapter 16.8VDC 2A 5.5×2.1mm
The 4S Lithium Battery Charger Adapter 16.8VDC 2A 5.5×2.1mm is designed for charging 4-cell lithium battery packs that require a 16.8V DC charging voltage. It is suitable for electronic projects, portable battery packs, DIY power systems, and rechargeable lithium battery applications where a stable and dedicated charger is required.
This charger provides a 2A output current, making it suitable for medium-capacity 4S lithium battery packs. The 5.5×2.1mm DC barrel connector offers a common and easy connection method for compatible battery packs and charging ports. Its compact adapter-style design makes it practical for workshop use, maintenance, testing, and everyday charging needs.
Features:
- Designed for 4S lithium battery packs.
- 16.8VDC charging output.
- 2A output current for reliable charging.
- 5.5×2.1mm DC barrel connector.
- Compact adapter-style design.
- Suitable for DIY electronics and battery-powered projects.
- Easy plug-and-use connection.
- Stable DC output for lithium charging applications.
- Practical for workshop, repair, and testing use.
Specifications:
| Specification | Details |
|---|---|
| Product Type: | Lithium Battery Charger Adapter |
| Battery Compatibility: | 4S Lithium Battery Pack |
| Compatible Battery Chemistry: | Li-ion / Li-polymer |
| Compatible Nominal Battery Voltage: | 14.4V / 14.8V |
| Charging Output Voltage: | 16.8V DC |
| Output Current: | 2A |
| Output Power: | Approx. 33.6W |
| Charging Mode: | CC/CV |
| Input Voltage: | AC 100–240V, 50/60Hz |
| Plug Type: | EU Plug |
| Connector Type: | DC Barrel Plug |
| Plug Size: | 5.5×2.1mm |
| Polarity: | Outer Positive (+), Inner Negative (-) |
| LED Indicator: | Two-color LED indicator |
| Charging Status Indicator: | Red Light: Charging / Green Light: Fully Charged or No Load |
| Material: | ABS |
| Color: | Black |
| Adapter Size: | 8.5 × 5 × 3cm |
| Cable Length: | 90cm |
| Protection: | Over-voltage, over-current, short-circuit protection |
| Usage: | Indoor battery charging |
| Application: | 4S rechargeable lithium battery packs |
Applications:
- 4S Lithium Battery Pack Charging.
- DIY Electronics Projects.
- Robotics Power Systems.
- Portable Lighting Systems.
- Rechargeable Battery Packs.
- Electric Tools Battery Charging.
- RC and Hobby Battery Applications.
- Workshop Battery Testing.
- Custom Power Supply Projects.
Package Contents:
- 1x 4S Lithium Battery Charger Adapter 16.8VDC 2A 5.5×2.1mm





