Fractal 5V Boostyboi V2 High Power Voltage Booster

But first, a bit of lore.

One of the major challenges with digital or longer-range 1S builds is supplying enough power to the video transmitter, along the whole discharge curve of the battery.

In most cases, Li-po batteries can be discharged down to 3.5 or even 3.3v.

That is already edging the limit of the Dji O4 Air Unit (lite) VTX (which tends to completely brownout around 3.2v)

But even more so on Li-ion builds whose batteries can be discharged down to 2.5v – All while showing higher voltage sag under load, which can turn off your video under the slightest punchout past mid-battery capacity

That is why I use a voltage booster on my digital and discrete analog VTX Wingman BNF builds.

Now I’ve tested quite a mouthful of off-the shelves booster modules of various sizes and specs, all with various shortcomings and worst of all inconsistent ones. I’d find a suitable one that would get bad on the following order.

And that’s when I created the original Boostyboi, later superseded by its little brother the Boostybaby at less than half the size and weight.

Which was –and remains suitable for any load up to a HDZero VTX, but then the Dji O4 came out and although advertised for 1S, again missed the mark for being fully reliable straight through, while demanding a massive power draw upward of 7W

And while the Boostybaby could just about carry an O4 down to Li-Po voltage, we needed something that could handle it down to Li-ion voltage.

I then went on to select the best-suited power IC for our specific high power 1S need and found this outstanding chip, boasting impressive specs that fit exactly our use case.

Then designed the circuit around it from the most reputable component manufacturers,

And out came this remarkably capable piece of gear that I can definitely trust to supply consistent, reliable power all the way through our 1S batteries.

Making it a viable option to add reliable video to any 1S digital or high power video build, from nano long range to tiny whoops.

Note that this is NOT a replacement for the Boostybaby; but rather a high power alternative for more demanding applications such as dji o4 air units

It does however carry over the remote disable pad, allowing you to switch off the output from the FC when pulled to ground.

That will allow you to turn off the connected VTX remotely, from your radio, whether be it to save battery, cool it down or simply reboot it in the event it got wonky

To use it, I suggest remapping vtx power resource in Quicksilver to your Buzzer pad, and wire it to the /EN pad.