Why no auto LVC???

[BrianG]

I would be interested to see how much capacity (mAh) you put back into the cells once they do hit cutoff. Would give you an idea how much capacity you are losing by a high cutoff value. Better yet, if you have an Eagletree device, hook it up and see the performance over time.

I would also be interested to know how the Tekin LVC algorithm works. Does it average out quick dips in voltage (under startup or hard acceleration) to prevent false triggers, or are the cells actually staying above LVC all the time, even under heavy loads? I know from experience that the Novak external LVC (sorry to bring in a competing brand in the Tekin forum) is quite sensitive (time-wise) to any dip in voltage. As a matter of fact, I had to add a simple circuit to delay those dips somewhat to prevent false-trips.

[ta_man]

Originally Posted by BrianG

I would be interested to see how much capacity (mAh) you put back into the cells once they do hit cutoff. Would give you an idea how much capacity you are losing by a high cutoff value. Better yet, if you have an Eagletree device, hook it up and see the performance over time.

That is kind of hard to say because I have never hit the cutoff. And doubly hard because I almost never charge the pack up fully again afterward. Maybe one day I will just to find out. (I did that one time, a year ago to find out my amp draw with a different setup (MM/Neu 1512) but haven't tried it with the Tekin.) I've got an Eagletree. I might try it next time out.

The best estimate I can give you is that after 14 minutes of running my Hyperion charger estimated that I had 33% charge left in my Fantom 4300 4S pack. I don't remember if there was any marshalling needed in the 14 minutes but if so, it was not much.

That estimate could be off as much as 10% since it is based only on resting voltage and I didn't fill up the pack afterward to confirm the amount used.

[whitrzac]

Originally Posted by BrianG

I would be interested to see how much capacity (mAh) you put back into the cells once they do hit cutoff. Would give you an idea how much capacity you are losing by a high cutoff value. Better yet, if you have an Eagletree device, hook it up and see the performance over time.

I would also be interested to know how the Tekin LVC algorithm works. Does it average out quick dips in voltage (under startup or hard acceleration) to prevent false triggers, or are the cells actually staying above LVC all the time, even under heavy loads? I know from experience that the Novak external LVC (sorry to bring in a competing brand in the Tekin forum) is quite sensitive (time-wise) to any dip in voltage. As a matter of fact, I had to add a simple circuit to delay those dips somewhat to prevent false-trips.

well, from the 3 runs I made with my eagle tree before I keeled it... it def. doesn't cut out right away... I hit 7.3v under a 200amp spike....

and I did see someone puff a MA lipo by hiting the cutoff on the losi esc