This DC 12V to DC 48V power adapter converts the DC 12V into DC 24V. Low power consumption; high conversion rate over 96%. Line output current：3A. Input: DC 12V(9V - 16V). 1 x DC-DC Converter. Load regulation rate：±0.2%.
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Mini DC-DC Boost Step Up Converter 3V 3.2V 3.3V 3.7V 5V 9V to 12V Voltage Regulator PCB Board Module
Aliexpress UK
Have charging indicator light,when filled with the indicator lights was lighting.
eBay
12V to 24V 3A 5A 12Volt to 24Volt DC DC Step-up Converter Boost Voltage Regulator for AUTOMOTIVES
Aliexpress UK
Feature: 1. Plastic Housing: The boost module is made of plastic shell, shockproof and dustproof, with IP67 waterproof grade and good heat dissipation. Item Type: DC Boost Module. Output Power: 100W.
eBay
24V 36V TO 48V 3A -30A STEP UP MODULE 24V to 48V Boost Voltage Regulator DC-DC Converter FOR
Aliexpress UK
Output power: 240W. Output current: maximum 10A. Compact converter in tough aluminum casing with pre-drilled mounting holes. Material: Die-cast aluminum casing ,epoxy sealed potting.
eBay
GYVRM 12V to 24V 1A 2A 3A Step-up DC DC Converter 12 Volt to 24 Volt 72W Boost Voltage Regulator CE
Aliexpress UK
Compact Size: The MT3608 boost module is small and compact, making it easy to install in a variety of small devices. Model: MT3608 Module. Small size, adjustable boost module, can be easily installed in a variety of small devices.
eBay
150W DC-AC Power Inverter DC 12V to AC 110V 220V Step Up Boost Converter Voltage Regulator Power
Aliexpress UK
This is a non-isolated DC regulated power converter module with long service life. It supports over current, short circuit, over temperature protection. Short Circuit Protection: Yes (current limiting protection).
eBay
DC 5-30V to 1.25-30V 8A Automatic Step UP/Down Converter Boost/Buck Voltage Regulator Module Charger
Aliexpress UK
Input 3.7V battery, output 5V 1A, 8V 0.5A, 9V 0.45A, 12V 0.3A. Input 5V, output 8V 0.7A, 9V 0.7A, 12V 0.5A. The pad next to the LED indicator can also be turned off to turn off the indicator. The front side of the PCB can be seen with the words A and B.
eBay
150W DC-DC Boost Converter Step Up Power Supply Module 10-32V To 12-35V 10A Laptop Voltage Charge
Aliexpress UK
Output power: 480W. - Compact converter in tough aluminum casing with pre-drilled mounting holes. - Practical and portable solution to your power problems.
eBay
12V to 24V 48V 5A 10A 15A 20A Step-up DC DC Converter 120W 240W 360W 480W Boost Voltage Regulator
Aliexpress UK