An electronics accessory, FYJUL 18V to 12V Step-Down Converter, that converts Makita 18V LXT battery voltage to stable 12V power for lights, motors and accessories. Ideal for DIYers who want cordless convenience without sourcing separate 12V batteries. Does the converter live up to its safety and compatibility claims for regular workshop use?
⚡ At a Glance
- • Power Delivery: Converts DC 18V input to DC 12V output at up to 10A, 120W maximum
- • Best for: DIYers and hobbyists powering 12V motors, LED strips, work lights and small ride-on toys from Makita 18V LXT batteries
- • Not ideal for: Charging batteries, since the unit is not a charger and outputs battery power directly
Accepts Makita 18V LXT batteries via a snug adapter and regulates output to 12V. Built-in protections include over-current, over-voltage and a low-voltage auto shut-off below 14.4V.
Run 12V Equipment - thanks to DC 18V to DC 12V buck converter
Synchronous rectification buck conversion takes the DC 18V input and steps it down to a stable DC 12V output, supporting up to 10A and 120W while improving conversion efficiency.
Power 12V motors, lights and accessories directly from Makita 18V LXT battery packs without separate 12V supplies.
Protect gear and battery life - with a smart protection chip
A smart chip monitors voltage, current and temperature, enabling over-current, over-load, over-voltage, under-voltage, over-heat and short-circuit protection and an automatic shut-off when battery voltage falls below 14.4V.
Reduce the risk of damage during stalls or electrical faults and avoid deep-discharge of the battery with automatic cut-out.
Durable for workshop use - with aluminium shell and epoxy potting
An aluminium casing combined with epoxy potting provides moisture, dust and shock resistance while improving heat dissipation for sustained operation.
Suitable for outdoor or rough workshop environments, offering longer-lasting performance and physical protection.
✨ The 4 Key Reasons for FYJUL 18V to 12V Step-Down Converter
- Synchronous rectification - Improves conversion efficiency for longer battery runtime
- Comprehensive protection suite - Cuts power on faults to prevent equipment damage
- Aluminium, epoxy-potted housing - Resists dust, moisture and mechanical shocks reliably
- USB-A & USB-C ports - Charge phones and small accessories directly from the Makita battery
📋 Technical Details at a Glance
- Category: Electronics
- Compatibility: Makita 18V LXT lithium batteries, including BL1850B, BL1860B, BL1830B, BL1840B, BL1820B
- Input Voltage: DC 18V
- Output Voltage: DC 12V
- Output Current: Up to 10A
❓ Frequently Asked Questions
Q: Which Makita batteries are compatible?
A: Compatible with Makita 18V LXT lithium batteries, specifically listed are BL1850B, BL1860B, BL1830B, BL1840B and BL1820B.
Q: Does low-voltage protection cover the USB ports?
A: Low-voltage protection only controls the XT60 output; the USB-A and USB-C ports remain powered regardless of the low-voltage shut-off.
Q: Can the battery be left attached when not in use?
A: It is recommended to remove the battery after use, and the unit is not a charger, so leave batteries disconnected when finished.
🏆 Our Verdict
Suitable for DIYers and hobbyists who want to run 12V equipment from common Makita 18V LXT packs. Efficient buck conversion paired with extensive electrical protections and a weather-resistant build is the key selling point. For regular cordless workshop use, the converter delivers practical, long-term convenience and reduces the need for separate 12V batteries.
