18V to 12V Step-Down Converter – Battery Power Adapter
18V to 12V Step-Down Converter – Battery Power Adapter
18V to 12V Step-Down Power Converter – Battery Adapter for Car Appliances
Transform your 18V–20V lithium-ion power tool battery into a reliable 12V (or adjustable 5V–13V) power source for car appliances, DIY projects, and more. This compact step-down converter is built for efficiency, durability, and ease of use — no complicated wiring required.
Made in Mainland China.
Key Features
- High-Efficiency Step-Down Conversion: Input Voltage: DC 18V–20V | Output Voltage: DC 12V / DC 5V–13V adjustable | Output Current: 10A Max | Efficiency: ≥95%
- Wide Battery Compatibility: Works seamlessly with popular 18V Li-ion batteries including BL1820, BL1840B, BL1820B, BL1815B, BL1835, LXT-400, BL1845B, BL1845, 194205-3, 194204-5, BL1830B, BL1850B, BL1860, and more.
- Built-In Safety Protections: Equipped with over-current, short-circuit, over-load, no-load auto power-off, and low-voltage protection for worry-free operation.
- Cigarette Lighter Interface: Convenient cigarette lighter socket output lets you plug in and power car appliances instantly — no extra adapters needed.
- Durable, Premium Build: Constructed from fireproof PC+ABS material with 16 AWG wiring and an efficient internal cooling mechanism for long-lasting, consistent performance in demanding conditions.
- Snug, Tool-Free Fit: Battery connector snugly locks onto compatible batteries for a secure, vibration-resistant connection that installs and removes with ease.
- CE Certified: Meets CE safety standards for added confidence.
Specifications
- Input Voltage: DC 18V–20V
- Output Voltage: DC 12V / DC 5V–13V
- Max Output Current: 10A
- Efficiency: ≥95%
- Connector A: USB
- Connector B: USB
- Wire Gauge: 16 AWG
- Housing Material: Fireproof PC+ABS
- Certification: CE
Package Contents
- 1 × Step-Down Converter / Battery Adapter (battery not included)
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Note: Product color may vary slightly from images due to monitor brightness and lighting conditions. Please allow minor measurement tolerances.
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Frequently Asked Questions
Q: What batteries is this 18V to 12V step-down converter compatible with?
A: This step-down converter is compatible with most 18V Li-ion tool batteries, including popular models such as BL1820, BL1840B, BL1820B, BL1815B, BL1835, LXT-400, BL1845B, BL1830B, BL1850B, BL1860, and many more. It is designed to snugly fit these batteries for a secure, reliable connection.
Q: What output voltage does this converter provide?
A: This step-down converter delivers a DC 12V output (fixed) and also supports an adjustable DC 5V–13V output range, making it versatile for powering a variety of car appliances and DIY electronics from an 18V–20V battery input.
Q: Does this adapter include safety protections?
A: Yes. The adapter features multiple built-in safety protections including over-current, short-circuit, over-load, no-load auto power-off, and low-voltage protection, ensuring safe and stable power conversion during use.
Q: Is the battery included with the converter?
A: No, the battery is not included. The package contains only 1 × Step-Down Converter / Battery Adapter. You will need to supply your own compatible 18V Li-ion battery.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.