UPS cargador baterías 3S 18650
thingiverse
Designing a compartment for easy placement of three universal 3.7V 18650 batteries and their corresponding BMC (https://m.banggood.com/3S-20A-Li-ion-Lithium-Battery-18650-Charger-PCB-BMS-Protection-Board-12_6V-Cell-p-1118043.html?rmmds=search) for balanced charging is the goal. I avoided any design requiring screws, opting instead for a clip-based approach to secure parts and create a hidden compartment. The battery terminals will connect through neodimium magnets (https://m.banggood.com/es/100pcs-5mmx2mm-N52-Strong-Round-Magnets-Rare-Earth-NdFeB-Neodymium-Magnets-p-988439.html?rmmds=myorders), which provide a larger contact area, but be cautious not to apply excessive heat as these magnets can lose their magnetic properties.
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