I started to design a simple 4in1 PCB for charging 18650 cells while looking at my actual charging rig attached to some wood! Some time ago, i teached myself to design PCBs for hobby use. I really love PCB Design and started this little project. Its a 4x Charger protected with a 3A diode and a 2A glass fuse.
I am using this for this porject: https://blog.seidel-philipp.de/xxl-powerhouse-diy-feldakku-aus-18650-zellen/
- 4A charging current
- mounting holes
- easy soldering
- "clean" design
- reverse polarity protection with fuse and diode
- easy expandable (just connect them in series)
if you like this project and what to support me and my work, you can do it via Patreon or PayPal
I used the cheapest components to get the lowest price possible. Estimated costs per board including hardware:
- 1x PCB $4.9 (you will get 10 boards)
- 4x TP4056 Aliexpress / Banggood
- 4x glass fuse 2A Aliexpress
- 8x glass fuse holder Aliexpress
- 4x diode (1N5402 3A 200 V, DO-41) Aliexpress
- 1x 18650 holder Aliexpress / Banggood
- 16x RM2.54 Pin Header Aliexpress / Banggood
you can order the PCB from china:
- Go to FUSION PCB www.seeedstudio.com
- Upload gerber file (TP4056_4in1_charger_final.zip)
- verify order settings
- Base Material: FR-4
- No. of Layers: 2
- PCB Dimensions: 100mm x 100mm
- PCB Quantity: 10 (you will get 10 identical PCBs - thats the minimum quantity)
- No. of Different Designs: 1
- PCB Thickness: 1.6mm
- PCB Color: Red
- Surface Finish: HASL
- Minimum Solder Mask Dam: 0.4mm
- Copper Weight: 1oz
- Minimum Drill Hole Size: 0.3mm
- Trace Width / Spacing: 6/6 mil
- Blind or Buried Vias: No
- Plated Half-holes / Castellated Holes: No
- Impedance Control: No
- add to cart
- pay the order! Done!
- share unused PCBs with the community! =)
Just solder these PCBs together! Please apply solder on the open traces to increase trace width!
