Canon LP-E12 Battery DC Adapter

prusaprinters

<ul> <li><p><strong>Warning:</strong> If you make this, you will be sticking diy electronics into expensive cameras. If you fry something, that's on you. Not a recommended project unless you are familiar with the components used. <strong>Make this at your own risk.</strong> Canon makes adapters that you can buy. They are very expensive, but cheaper than a new camera..</p> </li> <li><p><strong>Note:</strong> The entire camera is the negative of the power.</p> </li> <li><strong>Note:</strong> I don't know if using a converter can cause some interference in a camera (the pwm frequency).</li> <li><strong>Note:</strong> Cameras can get quite hot, so I don't recommend PLA, because it could deform and jam in the battery compartment..</li> </ul> <p>This is an adapter that allows you to use power-supplies with a 5.5mm barrel-jack connector in a camera that uses the LP-E12 battery. Specifically made for the M50, but should work fine in other cameras as well.</p> <p>There are two versions of the adapter pictured. One uses a buck converter that is very difficult to find at the moment, so this model is not uploaded. This is the one I use. The other one has a larger area inside so you can fit other converters, should you want to. You can ignore the converter and just use wires, but you will need a power-supply with a voltage around 7-8v. A fully charged battery is 8.4v, so I would not go over 8.</p> <p>Using a buck converter allows the use of a wider range of voltages. The converter I'm using can take up to 18v, and it converts it down to 8v. The one I'm using is very efficient, so heat is not a problem for me. If you use something else, you need to keep a close eye on the heat when testing. You also need to know the maximum current your camera uses when using a converter, and if the converter can handle it. It might be possible to use 2 converters in parallel to prevent high currents in just 1. I tried a bunch, and all of them was too weak alone, except the rare one I've had a long time. I cannot find it anymore.</p> <p>The battery lid bypass clip is something that can be used if you want to power the camera while the lid is open. It was made for the M50, so I don't know if it fits anything else. The clip pushes the tiny switch that's in the small hole. I don't recommend taking out the memory card without turning the camera off though, as files might get corrupted. The switch is there for a reason. The clip is very small, so I added a hole for a string so it can be attached to something.</p> <ul> <li><p><strong>Fusion file is available,</strong> should you need to tweak anything. Ignore the USB boost converter in the start. It was too weak for the camera. Input current was too high.</p> </li> <li><p>I tried to make as much space as possible inside the adapter, so it does need some support. If you don't need this space, it can be removed in the fusion file.</p> </li> <li><p>You will need a power-supply with a pretty long connector to make a good connection. Or use the bypass clip with the lid open.<br/> <br/></p> </li> </ul> <p><h3>What you need:</h3><br/> eBay searches are copied and pasted in.<br/> <br/><br/> <br/></p> <p><strong>4x0.15mm Nickel Strip</strong><br/> eBay search: 4mm nickel strip</p> <p>A 4mm wide nickel strip, often used inside battery packs. Very easy to solder wires to, and provides good contact with the battery terminals. Wires should be soldered to it, and then the strip is bent and put inside the channels.</p> <ul> <li>If you are wondering what the other contacts on the battery are, it's most likely battery temperature and cell balancing, so it's not relevant in adapters.</li> </ul> <p><strong>5.5x2.1\2.5mm Barrel Jack</strong><br/> eBay search: 5.5 (2.1mm,2.5mm) connector panel</p> <p>A very common connector on eBay. I'm using the 2.5mm center plug, but this will depend on the power supply you want to use.</p> <p><strong>Wires</strong><br/> I'm using 26AWG silicone wires. Might want to go ticker if your camera uses a lot of current.</p> <p><strong>Buck converter (optional).</strong><br/> I'm not linking to any here, since you need to know what you are doing to use these, and they need to be well tested to be safe.</p>