Whoop Juice Transfer Station – 1S Balance Charging Board


(3 customer reviews)

The best way to charge, uncharge and storage your 1S lipos!

Out of stock

Categories: , , , SKU: FRACTAL-BAL-6S Tags:


As of today 3rd of Jan 2022 I’m all out of stock! thank you so much everyone for your support, that’s over 1500 units sold in the hands of you awesome pilots!

Fortunately, some dealers might still have some in stock, here’s where you can find them while I arrange the next batch:

  1. The PH2 + BT2 version is available exclusively from our friends at weBLEEDfpv
  2. For the PH2 only, NewBeeDrone is getting the very last few boards soon
  3. If you’re anywhere in Europe, Drone FPV Racer‘s got you covered (they carry my Fractal65 frame too)
  4. And if you’re in Australia, RCBits is there for you too!

Until next batch, don’t forget to follow my facebok page to stay tuned on what’s cooking in my perpetual stew!



What is it and what it do?

Are you sick and tired of cheap 1S lipo chargers with limited functionally and often inaccurate calibration?

Do you wish you could use your good 4/6S charger to balance charge/uncharge/storage or even check internal resistance?

Well me too πŸ˜„

That’s why I developed this balance charging board that would allow doing just that!

And unlike the dumb balance wire looms that only work when all of the plugs are used,

I’ve added a jumper so that you don’t have to populate all 6 ports to close the balance circuit.

Just place the jumper the number of lipos you want to charge and that will make it a 1 to 6S lipo to your charger!

How is it made?

With love of course πŸ™‚

But also with the most rigorous standard for safety and quality.

  • The PCB board I designed from thick traces, copper filled on both sides for thermal dissipation
  • The VIN and balance leads are assembled from 100mm, silicone wires, and genuine Amass XT60
  • It comes with extended, red jumpers (one extra as a spare in case your dog eats it) for easy swapping cell count
  • And the final assembly and QC performed by yours truly, before getting packed by my lovely wife πŸ™‚

In other words, I’ve ironed down every detail with the help of valuable community feedback to bring you the best charging device for your whoop lipos

It is not a hastily tossed together cash-grab.

It is the result of several unsatisfactory iterations, samples and prototypes that I wouldn’t offer if I wasn’t 100% happy with.

Don’t trust me? here’s proof πŸ˜‰


But don’t take my word for it! Here’s what pilots think of it on my distributors’ websites!

Over 1500 units sold!Β 


About the BT2.0 Version and other connector types:

Preassembled BT2.0 is currently not an option anymore due to supply issues…

All boards however come with unpopulated BT2.0 footprint so you can solder your own

This means you may also solder on your own connector to these unused pads!

Add your own XT30, XT60, Pico 1.25, or hell even add another PH2 and make it a 6S 2P board so that you may charge up to 12 lipos at a time!

Note: You will need to tear out the backing tape for that; I recommend applying heat from a hair drier to soften the adhesive, or 3D printing yourself the back enclosure with a neat little slot to store your spare jumper. Just go get the model from the download section πŸ™‚

Video Manual and Reviews:

Additional information

Weight 22 g
Dimensions 80 × 30 × 18 mm

3 reviews for Whoop Juice Transfer Station – 1S Balance Charging Board

  1. Rodney Lorimor (verified owner)

    Defiantly Recommend!

    A great addition to mt tools for maintaining my 1-cell batteries.

    0 0
  2. JRussell (verified owner)

    Nice board .

    Designed to last. I like the use of jumpers, If I lose a jumper no problems. Good price.

    0 0
  3. Chris K (verified owner)

    Highly recommended!

    What an awesome product! A great board for taking care of my 1S LiPos. Storage charging have never been easier.
    Quality components and great build quality. Thank you for making this available!
    The only regret I have, is just ordering one board. 2 boards would have been perfect for a dual charger πŸ˜ƒ

    Whoop Juice Transfer Station - 1S Balance Charging Board
    Whoop Juice Transfer Station - 1S Balance Charging Board
    0 0
Add a review

Your email address will not be published.

Post comment