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I created this PCB for my personal project of a very big custom Li-Ion Battery which i use to charge my FPV Racing Drones Batteries on the flying field. With this PCB, you can build your own LiIon/LiPo Battery with up to 6 cells. You dont need to worry about the balancing wires, they are intregated in the PCB.

An ISDT BC-8S monitors all your cells and alerts you if there is any problem.

In adition, i also added 3 USB QC3.O USB Charging Ports, which can be seperatly turned on/off via a pin header jumper.


  • connect up to 6 1S cells via XT60
  • XT60 Plugs (direct or via cable)
  • 3X 24W USB QC3.O USB Stepdown
  • Balancer Port
  • Port for ISDT BC-8S
  • open copper trace on back - fill with solder tin to increase trace height
  • 99mm x 80mm Board (all dimensions here)

Support me

if you like this project and what to support me and my work, you can do it via Patreon or PayPal



What do you need

(some links above are affiliate links / Werbung)

Important Notice

I removed the solder mask in order to apply solder to the traces on the back. I highly recommend to add a good amount of solder to all traces on the back to increase the trace height. With this method, the Traces can withand high amp flow.

I highly suggest to charge big parallel packs with individual 1S Chargers. Charging big batteries via the Balancer Port may take a while.

If you want to use less than 6 cells, just bride the unused XT60 ports.



14.05.2020 - v1.3 released DOWNLOAD

  • complete redesign for use of ISDT BG-8S
  • supports 8S
  • supports ISDT BG-8S
  • angled XT60 sockets
  • balance port
  • 3 in/out ports
  • removed USB charger due to limited space

28.12.2018 - v1.2 released DOWNLOAD

  • added third pin where the jumper can be put when USB Module is powered off

14.12.2018 - v1.1 released DOWNLOAD

  • inital release

Blog post about the project

Ordering the PCB from shared project

here you can order my shared project (v1.1):

  1. Click on "Add to Cart"
  2. Set Quantity to "10"
  3. Solder Mask: select you favourite color
  4. Finished Copper: 1oz
  5. Silkscreen: select you favourite color

Ordering the PCB via gerber file download

you can order the latest PCB (v1.2) from china when you downloaded my gerber file from GitHub:

  1. Go to "PCB Instant Quote"
  2. Upload gerber file
  3. verify "PCB Specification Selection"
  • Board type: Single pieces
  • Different Design in Panel: 1
  • Size : 99 x 80 mm
  • Quantity : 10
  • Layers : 2 layers
  • Material : FR-4 TG130
  • Thickness : 1.6 mm
  • Min Track/Spacing : 6/6mil
  • Min Hole Size : 0.3
  • Solder Mask : red
  • Silkscreen : White
  • Gold fingers : No
  • Surface Finish : HASL with lead
  • Tick "Yes" means you accept we might change "HASL" to "ENIG" at our discretion without extra charge.Thanks!
  • Via Process : Tenting vias
  • Finished Copper: 1 oz Cu
  1. choose shipping
  2. add to cart
  3. Upload Gerber File ( by clicking "+Add Gerber File"
  4. click "Submit Order" and pay!
  5. share unused PCBs with the community! =)

Photos V1.1:

Photos Prototype: