Canon NB-4L battery adapter
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Published on February 12, 2012
Description
As I wanted to do timelapses with my Canon Ixus 220 HS (also known as Powershot ELPH 300 HS) using the great CHDK, I realized that the standard battery only lasts for 2.5 hours.
While searching the internet, I found that there is an existing solution by Canon with the major downside that it costs about 90€.
So I fired up openscad and came up with this battery dummy for the NB-4L battery. Using a female servo connector and some desoldering wick for the contacts, you are able to power your camera with an external power supply.
I supply a voltage of 4.0V which is generated using a cheap LM2596S step-down converter (search LM2596S on ebay). You could use a LM317 linear regulator or anything else that generates the required voltage and up to 2A.
You can easily adapt this thing to your own needs using the openscad file.
While searching the internet, I found that there is an existing solution by Canon with the major downside that it costs about 90€.
So I fired up openscad and came up with this battery dummy for the NB-4L battery. Using a female servo connector and some desoldering wick for the contacts, you are able to power your camera with an external power supply.
I supply a voltage of 4.0V which is generated using a cheap LM2596S step-down converter (search LM2596S on ebay). You could use a LM317 linear regulator or anything else that generates the required voltage and up to 2A.
You can easily adapt this thing to your own needs using the openscad file.
Instructions
Slice the stl-file with your favourite slicing program.
Split the gcode into two parts, so that you can insert the parts during printing.
1) Print the first part
2) Insert the desoldering wick and the connector
3) Continue printing the second part
Split the gcode into two parts, so that you can insert the parts during printing.
1) Print the first part
2) Insert the desoldering wick and the connector
3) Continue printing the second part
License
Canon NB-4L battery adapter by florian is licensed under the Attribution - Non-Commercial - Creative Commons license.
Cool, if you search Thingiverse you'll see I made an attempt at this a while ago for my canon SD300 but never took it as far as adding the contacts for the battery. I ended up buying a different camera in the end as I needed SDHC support, the power adapter for the new camera was only
£5 so I didn't pursue this any futher.
I notice that even modern point and shoots often lack a DC power port and also require an expensive adapter like this. My Panasonic TZ10 is the same, it require a special adapter.