LM317, 12V Battery charger.

Lets Build This Charger

How to charge a 12V Battery. Hello Friends, in this post I make a 12V Battery charger using LM317 IC. You can power up this circuit with a 0-12V, 2-3A Transformer, or 25W-50W solar panel. The output voltage of this charger is Adjustable and the output current is constant at 1.5A. Adjust the output voltage of this circuit at 13.7V-14V to charge a 12V 7AH-10AH battery. Using this circuit, you can easily charge a 12V 7AH-10AH battery. The input voltage of this circuit is a minimum of 7VDC to a maximum of 35VDC, the maximum output voltage of this circuit is adjustable, and the current is constant at 1.5A. For designing my PCB, I used EasyEda online software. Then I export the Gerber file (which you can download). And then I go to www.pcbway.com for manufacturing my PCB. PCBWay are the largest PCB manufacturer in China. They offer Standard PCB, Advanced PCB, Rigid-Flex PCB, SMD-Stencil and PCB Assembly Service. Here you get, 100x100mm 2 Layer PCB only at $5, And processing time within 24 hours. And they distribute, worldwide. The more you order, the less price you have to pay.

You just need to upload the Gerber File, and select the quantity, color, silkscreen, thickness etc. Then select your country, and shipping method and then Pay. PCBWay (www.pcbway.com) will deliver your PCB within 7-10 days.

After one week I received my PCB. You can see the PCB quality, it's awesome. I have ordered RED PCB. But you can choose your PCB color. PCBWay provides a total of 9 color solder mask - Green, Blue, Red, Purple, Black, White, Yellow, Matte Black, and Matte Green. On PCBWay you can get 100x100mm 2 Layer PCB only at $5. Maximum size PCB you can get 500x1100mm. And maximum Layer is up to 14 Layers. And If you order PCB the first time at PCBWay, then you get a $5 discount coupon. So upload your Gerber today and get the best quality PCB.

Gerber File :- https://bit.ly/3IY20UG

PCB Layout & Schematic :- https://bit.ly/3yZ9It7

License:- ©Technical Mriganka. You can't use this PCB Layout and Gerber File for commercial purpose. You can use this PCB layout and Gerber file only for Educational and DIY projects.

Testing Method After Complete This charger

Power Supply:- The input voltage of this circuit is a minimum of 7VDC to a maximum of 35VDC, 2A-3A, and the maximum output voltage of this circuit is adjustable, and the current is constant at 1.5A.