Recent content by psycholist

Would the Turnigy Watt Meter succomb to a premature death if I sealed off the vent on the underside of the unit? Has anyone tried running a sealed unit?

OK, This is what I assume might have happened. Tightening the pinch-bolt is what initiated the failure (the crack that you noticed). The spreading of the dropouts, caused by the wedging from the axle, further weakened the bond, to the point that the only place the bond had any integrity was in...

+1 I suspect this is the main problem.

neptronix, I remember reading about issues when using TVC but can't remember what they are off-hand, so I simply avoid it and use TCS instead. TCS 95% will get you ~4.13v - 4.14v. I believe you can set in 1% increments via software only. Otherwise 5% increments via the charger. Also don't use...

cwah, Sorry, It isn't literally called "passive mode". Press the mode button until you reach "Balancer Mode" Just charge/discharge in lipo mode and monitor closely. Doing so will reveal any bad cells. From what I've read, it isn't worth the hassle, or the return shipping cost, to exchange lipo...

I see your logic neptronix. Thanx

Neptronix, Do you find that these dud cells diminish in capacity faster (compared to a healthy cell) over time?

First off, I don't know how high the cell voltage will terminate at TCS 75%. What I do know though, is that at 40% TCS, the cell voltages terminate at ~3.85-3.86v. So at TCS 75% your probably looking at a significantly higher termination voltage. Disregard the % capacity values computed by the...

Need more info. What size packs are you charging? Lipo? Are these new packs?

Ahh Yes, You're right. I overlooked this possibility for those that leave their batteries connected. In my situation I will be removing the batteries to charge and for the brief periods that I leave them connected when not riding, the battery drain is not a concern. I'll simply turn off the...

Yes, you would need a switch capable of handling the high "DC" voltage and amperage. Unfortunately these are big and expensive. By using a precharge resistor in parallel you can get away with using a switch with a somewhat lower rating (although you may have to replace it occaisionally). This...

It would be cool if you could include a feature to switch on a booster pack.

Why is everyone using 2 switches? All you need is one, with the precharge resistor wired in parallel. Flip the switch one way (the normally open position) to connect only the precharge circuit, flip it the other way and it shorts out the resistor, closing the primary circuit. Am I overlooking...

Doh! :shock: You are one brilliant dude! Thank You!

Betcha he'd show up if we started a wheelchair category on the forum. I can visualize Dual Clyte wheelchair applications. Those guys don't know what they're missin. Think of the amount of lipo they can pack under that seat. :P