Both 12V and 72V lifepo4 battery packs will be managed by cell balancing modules (CBM) and a protection circuit module (PCM). Both are easily available and simple to connect. One CBM will be connected parallel with each cell and the PCM needs a connection between every cell. Although these connections are simple, the amount of them make this step quite demanding.
A half way wired 72V battery management circuity is shown in the picture. The PCM is shown on top and below it lies 24 CBMs. Once this is fully wired it will be mounted in a 240x190x90 mm enclosure. The connections to the battery pack will be done using 1,5mm^2 wire with a fuse located close to the terminals of the battery pack.
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