Phils-Li-Ion-Battery-Board

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.

Features

• 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

Video

https://www.youtube.com/watch?v=qvAzB0jTuBU

What do you need

• 1x PCB (how to order, see below)
• 1x ISDT BC-8S
• 1x ISDT BG-8S for v1.3
• 6x XT60 Male without cable / with cable
• 2X XT60 Female without cable / with cable
• 1x 9 Pin Header Female 90° Angled
• 1x 7 Pin JST-XH 2.5mm Angled Connector
• 3x USB Module
• 3x 2 Pin RM2.54 Pin Header
• 3x Jumper

(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.

Shematics

Changelog

ALL RELEASES

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

• english (soon)
• deutsch

Ordering the PCB from shared project

here you can order my shared project (v1.1): https://www.pcbway.com/project/shareproject/Phils_LiIon_Battery_Board_v1_1.html

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" www.pcbway.com
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

4. choose shipping
5. add to cart
6. Upload Gerber File (battery_board_v1.2.zip) by clicking "+Add Gerber File"
7. click "Submit Order" and pay!
8. share unused PCBs with the community! =)

Photos V1.1:

Photos Prototype: