Does anyone know of a good scew-down or rubber / plastic mountable battery holder for the 3.7v battery used with the Electron?
I have had great luck with industrial velcro strips. They hold up well outdoors and give you the option of replacing / removing the battery if needed.
Thanks, I’ve done the same previously…but with the number of these size (package) battery units out there I’m surprised there isn’t a silicone or plastic screw-down holder.
Well, you can get one printed it turns out. I have a Prusa Mini printer and have been trying to learn how to use it more effectively. I have not mastered Fusion360 but I do create parts for my sensors using OpenSCAD - a free program that lets you program your 3D part.
I found a model for a LiPO battery holder on Thingiverse where the creator - bless him/her - provided the OpenSCAD source code.
With this, I was able to customize the holder using the variables at the top of the file and create a holder that should work for the standard Particle LiPO cell (1800mAh) and it looks like this:
I am printing this now and will share what I get. If you don’t have a 3D Printer, you can use various on-line printing services and you could also try different materials such as the cool elastic filaments I hope to be able to figure out one day (harder to work with it turns out).
I hope this helps and thank you for the suggestion, I would never have found this without your post.
Works! Here is what the enclosure looks like. There is a little slot under the battery that could accommodate a zip tie. I got a fairly snug fit with the following parameters:
battery_length=50; battery_height=11; battery_width=35; // high is not be tested it can be it will not fit in! wall_height=2; // [3:low,2:medium,1.5:!high!] thickness=2; // [1:3] hole= 3; // [0:8] sunk_screws=0; // [0:NO, 1:YES] light=1; // [0:NO, 1:YES] band_hole=1; // [0:NO, 1:YES] thick_edge=0; // [0:NO, 1:YES] //If you don't need it set to 0 mount_basis_length= 70; //If you don't need it set to 0 mount_basis_width= 50; mount_basis_thickness= 2; // [1:3] //mount_basis_length need to be higher than mb_hole_distance_length= 60; //mount_basis_width need to be higher than mb_hole_distance_width= 40;
Similar to some of the guys above, I have 3d printed a backing plate and battery enclosure for my 3.7v LiPos (i need 12,000mah to give me 2 weeks of cloud cover insurance because the 3g sucks so much juice along with my 3 sensors!).
The battery cage slots into the backplace via an L shaped bracket. Seems to be holding up well.
Pics below, happy to share, but the PCB was custom designed, so the mounting holes may not be so handy for you.