![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOmci80buDhxgLl5i5Lju4KGc3OOH6NxjyuexzOSRxZtnlt-W2Vskb4kV9HRFYSffPPtlRsEP9q2TDsfvt-RKRqpkHpCKM0hCA6v4xkKYLczJFamQDaxYehLUONgrb9O3DwixY_2mg3JI/s320/100_1196.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEilTeRnk7ciM01VGM0lM3IFGInknXGy0DDlAjdPZxCJronTyZ5AtJXW1WeWqtUlqxeu-7oqKR1ly9-jvYFrM_mfyLIXMBc4GThjvuUNzqB7C1Y31To3NrXUCBai777h9Rp8ivwI3_bwjF0/s320/100_1194.jpg)
Here's a close-up of the connections:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyD_RDeRCq_Pmrk6THBgwjtd7R4QG_hnAdsl1sfjBJArmZXazn2XLOvJlBPR7kNiP7iajtJuLmVSeV89s-Q4CoNRTzpwnm0H6QJczoIvBH-590LcT3r-uK1WEGItzxK-R_8oXCpVgQFX8/s320/100_1195.jpg)
As you can see, each cell monitor straddles its respective cell, and the copper interconnects go between cells. The monitors are daisy-chained together in a large wire loop that terminates at the BMS unit in the rear of the vehicle. If any one cell encounters a problem, it notifies the BMS, which can then cut power to the charger.
Right now I only have per-cell protection from over-charge, but not per-cell protection from over-discharge. The Zilla motor controller is providing protection of the pack as a whole from over-charge, with a low voltage limit of 130V (2.5V/cell).
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