Lithium-ion Battery Pack 36V/24Ah with Enclosure

prusaprinters

<p>A few years ago I decided to design a new battery pack for my Tante Paula Scooter to skip using Lead-acid batteries (12V x3) which will fit existing scooter's battery compartment. This project is now completely finished. The battery pack is build and my own battery enclosure are designed, printed and assembled.&nbsp;</p><p>The objectives for the enclosure was: has to be sturdy, well ventilated, easy to assamble, easy to fit in place…</p><p>The project is huge, and detailed information is on my own page: <a href="https://orlovac.eu/projects.php#pack,">https://orlovac.eu/projects.php#pack,</a> with name: THE MOST ADVANCED LI-ION BATTERY PACK I EVER BUILT.&nbsp;</p><p>The complete enclosure could be printed on Prusa i3 MK3S+, but certain amount of print support is needed for some components. I have provided here all STL files, but not sliced them. If you are intrested in, you have to do it yourself. It would be enough with 0,2mm layer height.&nbsp;</p><p>Important: I have printed all components on a big professional Stratasys printer, all in ABS. It was time before I purchased my Prusa MK3S+ printer. I suggest to use PETG, ASA or ABS. I do not suggest PLA, because the battery pack can be quite warm during usage. PLA filament could be used for the display enclosure only. The battery pack does have a BMS integrated. It means that bottom and top part of battery enclosure are a bit bigger than standard Prusa MK3S print bed. To ovecome this problem, the bottom and lid need to be placed standing and rotatated diagonally on the printer bed. Print support is needed and big brim to support standing part need to be generated.&nbsp;</p><p>The complete battery project does have: the appropriate charger, Display unit (which is not mandatory), BMS and information about smart phone app for battery monitoring.&nbsp;</p><p>What is unique with my battery enclosure? I designed it so that all details hold themselves in place when assembled. No single screw is needed. Anyway there is place for four screw on top and four on bottom. Fit them when the enclosure is finally assembled.&nbsp;</p><p>Bill of material (BOM) of all componetns does exist on my web site and all needed links too.&nbsp;</p><p>WARNING: remember that Lithium-ion batteries store large amount of energy. If you do not know what you are doing, don't start this project. Your misstakes can hurt you seriously and you can burn down your home. You are warned now. I can not take any responsibility for what you ar doing with this information. The printed plastic battery parts are not dengerous.&nbsp;</p><p>Me on <a href="https://www.thingiverse.com/marinorl/designs">Thingiverse</a>.</p>