Quote:
Originally Posted by SpEEdyBL
...You'd be amazed at how high voltage spikes can get during braking, easily twice the pack nominal voltage with bad packs. Since the the MMM and MM both have 30 volt fets this was not an issue with the MM as 3s was the rated limit.
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There is a TVS on the MMM which limits these spikes to something around 26-28v.
Quote:
Originally Posted by hemiblas
...When the ESC pulls too much current and the voltage drops it shuts down. Shouldnt the same thing be happening on the MMM? If not maybe setting this feature from the factory so its more sensitive might help to prevent failures due to bad batteries?
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This is a double-edged sword. If you make the LVC too sensitive, it false trips all the time. If you make the LVC less sensitive to spikes, battery or ESC damage could occur. So, the LVC probably looks at the voltage over a set time and if it falls consistently below a certain value, it trips.
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