Richard's 18650 battery spacers

thingiverse

Here are a couple of spacers for the common 18650 batteries. 3by4.stl file is a universal 3 by 4 battery spacer/holder featuring a standard 20.2 mm cell spacing to fit the spot weldable fuses from battery hookup. The nice thing about the universal as it is can be used for a 1S12P as I am or a 2S6P, 3S4P, 4S3P, or a 6S2P configuration. I am using the universal 3 by 4 on a 14S12P configuration where each of the spacers is configured as a 1S12P configuration as a part of that battery. The other two STL files here are the top and bottom for a 3S4P configuration using individual fuses off of the positive leads. I designed and use the 3S4P configuration for some solar lights among other things, I have larger blocks programmed and depending upon how my 14S battery does, I may post larger spacers here in the future. Advice, suggestions and criticisms are welcome. DISCLAIMER: This information and files are being provided for free. Please determine the suitability of this for any project that you design or build. I am providing this for free but I can not guarantee the safety of anything you build with it, you have to do that. Lithium batteries can be dangerous and start fires if over charged, or if too much current is applied or drawn, or if they are short circuited or if they get too hot. If you build a battery pack make sure that you know what you are doing as you need to protect against these and other hazards and you bear sole responsibility for that. On 30 Jan 2020 added the .stl file for a 5 by 8 spacer. If you need one of a particular size, just ask and I will post it. On 6 Feb 2020 added 9by11.stl for a 9 by 11 spacer. It is the largest I can make in one piece flat on the bed of my printer. On 10 May 2020 added 4 by 5 cell .stl file.