Quote:
Originally Posted by bdebde
Perhaps a delayed LVC is not a good idea. If it allows the batteries to drop below 3v a cell, even for a split second, it may be enough to do damage to the batteries (or at least shorten their life considerably).
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Actually, if using this type of outboard circuit, the diode would increase the LVC threshold by 0.7v for silicon diodes, or 0.3v for germanium diodes. So, assuming a normal 0.7v diode, if the LVC is set for 3v/cell, it would actually activate at 12.7v for a 4s pack (3.175v/cell), 9.7v for a 3s pack (3.233v/cell), etc.
Even so, this would just prevent the LVC from reacting too quickly. Bursts usually last a couple mS, so all you need to do is average the voltage out so it doesn't dip at the LVC at
quite the same speed as at the ESC. Basically, make it have around a 1/5 to 1/4 second delay.
Is it perfect? No. Then again, it is a simple and cheap alternative.
