DZS Elec 6pcs XL6009 DC-DC Booster Converter Module 3V-32V to 5V-35V 4A Adjustable Step-up Voltage Regulator 5V 9V 12V 24V Power Supply Module

Thank goodness I bought these along with the 2A version from another design & manufacturer - these worked, the other didn't. Great deal and solid performance so far! Would buy again.

I use it for powering my Yaesu FT818 ham radio low power transceiver from battery. These devices are designed for a nominal voltage of 13.5 Volt and if you run the FT818 from an external battery it will switch to even lower power when the battery voltage drops below 12.5 V. With one of these I keep the supply voltage qt 14V all the time and stay at 6W of power. I did not notice any RFI produced by these converters. The FT818 draws about 2.1A at 6W and 14V depending on your antenna, but that is no challenge for the module designed for 4A. I tested it with FT8 for a whole day from a 15Ah battery. I didn't pay attention but was pleasantly surprised that I got 6 units as shown in the picture. Not bad for this price.

Rated for 4 amps on the page. Tried to use it to power a raspberry pi 3 a+ by setting the voltage to 5.15v and it simply boot loops. A phone charger i paided five dollars for performed better and it was rated for only one amp.

Just remember, if you are using a power source with more watts thin this can handle, run the power source through the appropriate amount and type of resistors before connecting to this module. I am apparently an idiot who forgot that this has capacitors on it and when I placed this thing in my circuit I ended up passing 40w through it. Mmmmmm... I love the smell of magic smoke in the morning!

Unfortunately, this device did not work for me. I powered my ESP32 circuit from 5V regulated and have a boosted voltage supplied to MAX6921 for VFD display. The device shorts the power during the startup when connected to MAX. In the end, ESP32 does not start because of too low voltage. The weird thing is that if I disconnect it from MAX the power supply voltage finally goes where it needs to be - after around 70 ms. Chan 1 (yellow): ESP32: 3.3V output Chan 2 (green): input voltage (trigger)

Works great.

El articulo cumple con las características descritas en termino generales, ahora bien fue probado con un consumo de 3amp y se recalento posiblemente requiera ventilación adicional o no soporta por largos periodos consumos sobre ese amperaje. Actualmente tengo dos tarjeta trabajando con un consumo máximo de 2amp y lo cumple sin problemas

I liked how easy it was to adjust the voltage and also how it came with six. I used them on a motorcycle tail light that was a single series that went from 3v to 3.8v when you depressed the tail light. With the booster I was able to get it to 12v to illuminate the brake light.