Quote:
Originally Posted by CODMAN
That's what I'm doing by inviting people like you to share their experience and knowledge!  If I was simply stubborn and convinved all I know (which is little) and all I've read/heard (which is considerably more than what I know) to be fact, I would have simply ignored all the other posts and stopped discussing the subject convinced to be right on this... Which is not the case!  I sincerely do appreciate constructive explanations of why not all that is correct/ exact along with "over pond" hands on experience! There is a lot of good info on this forum and I enjoy soaking it up immensely! But I tend to not throw out my oppinions lightly. Good reasoning and credible explanations will always bring me around to changing my views on things (which is why I often invite people to correct me and explain why I'm wrong). But the classic "I use it and it works" just isn't "mind changing" material for me in general...
Anyways, did not intend to offend or putoff anyone. Just wanted to share and learn by contributing!
Cheers!
CODMAN |
Hi Codman,
I understand that you trust your sources. I'll explain my own view point. Initially, the concept of Lipo on paper seems to good to be true and personally I won't be convinced by anything until I have proven it to myself.
Around January/February Mark Christopher leant me a relatively well used 4900 stick pack which I used regular at Worksop. I was able to use one pack all day, without even balancing it, and my car was blisteringly quick - so much so that I had to go from a 5.5L to a 7.5R (Id have put an L in but I don't have one). The car is still verging on the too quick side of driveable.
Around March/April I received a couple of packs of my own. I have been using the 3200 saddle in 2wd, the 3200 stick in 4wd and 4900 stick in truck. I have raced at many club meetings where I can use 1 pack of cells, and charge straight after race and contuously use. The most I have done is race 2 classes in a 7 heat schedule, both with Lipo and charging from 1 charger - I didn't miss a run and didn't once start a run with partially charged packs.
awesome.
Recently at Belgium, I arrived on Thursday and proceeded to practice as regular as the speed of charging allowed with 3 classes, charging from 2 chargers and without a voltage cut off running them until I felt the punch drop (I WOULD NOT RECOMMEND THIS TO ANYONE, Please do use a Voltage cut off). I was able to do this over Thursday and Friday without any malfunctions or deterioration.
Sunday I raced 2wd, and Saturday I raced 4wd and truck in a 7 heat schedule (bit of a rush getting pack straight on charger before marshalling). Furthermore, I was unable to balance charge on Sunday all day as somebody kindly removed my balancer from the pits. (
stolen
)
But I have managed all this, with 1 pack per car, no performance drop off, no cell faults, and am now convinced enough to propose Lipo to BRCA (which I did the week after the Belgium GP).
From experience, I highly recommend trakpower Lipo. For similar performance to cells choose a 3200mah 20C pack. For anything more powerful you certainly will need to motor down.
Chris