DIY_18650_Charger

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DIY_18650_Charger

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Reverse Protected 18650 Lithium-Ion Charging Unit

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# Reverse Protected 18650 Lithium-Ion Charging Unit
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/](https://blog.seidel-philipp.de/xxl-powerhouse-diy-feldakku-aus-18650-zellen/)

[![IMAGE ALT TEXT HERE](https://img.youtube.com/vi/w36wQmIgJ6s/0.jpg)](https://www.youtube.com/watch?v=w36wQmIgJ6s)

# Features
* 4A charging current
* mounting holes
* easy soldering
* "clean" design
* reverse polarity protection with fuse and diode
* easy expandable (just connect them in series)

# Support me
if you like this project and what to support me and my work, you can do it via [Patreon](https://www.patreon.com/philippseidel) or [PayPal](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=2BCQ846V4TD3C)

# What do you need
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](https://de.aliexpress.com/store/product/10pcs-lot-TP4056-1A-Lipo-Battery-Charging-Board-Charger-Module-lithium-battery-DIY-MICRO-Port-Mike/1022067_32651302113.html?spm=a2g0x.search0104.3.27.5e037bcbWhaKt5&ws_ab_test=searchweb0_0,searchweb201602_4_10320_10152_10151_10065_10344_10068_10342_10547_10343_5012915_10340_10548_10341_10696_5013115_10084_10083_10618_5013015_10304_10307_10820_10821_10302_10843_10059_100031_10319_5013215_10103_10624_10623_10622_10621_10620,searchweb201603_54,ppcSwitch_5&algo_expid=0db6364f-c720-481d-aeb2-ae08aaa5e637-6&algo_pvid=0db6364f-c720-481d-aeb2-ae08aaa5e637&priceBeautifyAB=0) / [Banggood](https://www.banggood.com/20pcs-TP4056-5V-1A-Lipo-Battery-Mini-USB-Charging-Board-Charger-Module-p-1095077.html?p=3R26141006882201412N)
* 4x glass fuse 2A [Aliexpress](https://de.aliexpress.com/item/100pcs-5-20-Glass-Fuse-Not-Assortable-Kit-250V-0-1A-0-2A-0-3A-0/32753288349.html?spm=a2g0s.9042311.0.0.27424c4dqtMTOK)
* 8x glass fuse holder [Aliexpress](https://de.aliexpress.com/store/product/100Pcs-5-20mm-Fuse-Holder-Clips-Glass-Quick-Fast-Blow-Fuses-Welding-Holder/2954022_32804593991.html?spm=a2g0x.search0104.3.8.19d733bbvoSt32&ws_ab_test=searchweb0_0,searchweb201602_4_10320_10152_10151_10065_10344_10068_10342_10547_10343_5012915_10340_10548_10341_10696_5013115_10084_10083_10618_5013015_10304_10307_10820_10821_10302_10843_10059_100031_10319_5013215_10103_10624_10623_10622_10621_10620,searchweb201603_54,ppcSwitch_5&algo_expid=2c199d67-62ab-4863-84f4-bc4cc01e5148-1&algo_pvid=2c199d67-62ab-4863-84f4-bc4cc01e5148&priceBeautifyAB=0) 
* 4x diode (1N5402 3A 200 V, DO-41) [Aliexpress](https://de.aliexpress.com/item/32855215650.html?spm=a2g0o.productlist.0.0.69488358LjYbnF&algo_pvid=34db313d-783b-4f7b-a0dd-6e3996e1c1bd&algo_expid=34db313d-783b-4f7b-a0dd-6e3996e1c1bd-0&btsid=0ab6fa7b15926739554092666e421b&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_) 
* 1x 18650 holder [Aliexpress](https://de.aliexpress.com/item/33037738446.html?spm=a2g0o.productlist.0.0.6551354au7ZOvg&algo_pvid=eae16bf8-31c1-4dc0-8d54-ef0bda14effd&algo_expid=eae16bf8-31c1-4dc0-8d54-ef0bda14effd-0&btsid=0ab6fa7b15926736376244471e421b&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_) / [Banggood](https://www.banggood.com/Plastic-Battery-Case-Holder-Storge-Box-DIY-for-4pcs-18650-3_7V-Rechargeable-Batteries-p-1188733.html?p=3R26141006882201412N) 
* 16x RM2.54 Pin Header [Aliexpress](https://de.aliexpress.com/item/32993182990.html?spm=a2g0o.productlist.0.0.4e232ff4oCy51F&algo_pvid=a8595a46-f2e1-4e14-ad69-ab2618b99dfe&algo_expid=a8595a46-f2e1-4e14-ad69-ab2618b99dfe-0&btsid=0ab6fa7b15926733190227730e421b&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_) / [Banggood](https://www.banggood.com/10-Pcs-40-Pin-2_54mm-Single-Row-Male-Pin-Header-Strip-For-Arduino-p-918427.html?p=3R26141006882201412N)

# Shematics
<img src="https://github.com/ps915/DIY_18650_Charger/blob/master/image/4.png">

# Ordering the PCB
you can order the PCB from china:
1. Go to FUSION PCB www.seeedstudio.com
2. Upload gerber file (TP4056_4in1_charger_final.zip)
3. 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
3. add to cart
4. pay the order! Done!
5. share unused PCBs with the community! =)

# Connection PCBS
Just solder these PCBs together! Please apply solder on the open traces to increase trace width!
<img src="https://github.com/ps915/DIY_18650_Charger/blob/master/image/4in1_18650_series.jpg">

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