MM43, #215
I suspect the reason for the present arrangement is to keep the battery
management system intrinsic with the cells that it controls. Additional
and unquantifiable ohmic losses could present a significant problem for
remote monitoring.
The remote monitoring isn't a problem, but it may be that the reason why
the electronics and (?) data logging are in the enclosure is that system is
designed with enough storage capacity to log the whole life of the battery.
If it's in the charger, there has to be a process to ensure continuity and
accuracy of existing data. If either the battery or charger are replaced in
service, the logged data will no longer match that for the battery. It's
issues like that that can make system design so complex, trying to resolve
all the conflicting requirements.
Still doesn't excuse the unprotected boards though and they should have at
least used a separate sealed compartment, as RR_NDB suggested a couple of
posts prior to yours...
Regards,
Chris