motomech wrote:Well, i never weighed the individual bricks, but I just weighted one of each of the Turnigy 20C and the Zippy 15C 12S/5Ah packs and I got;
Zippys-22.55 Oz[my scale only does oz.s]
So there is a substanial weight difference of 1 1/4 Oz.s per brick, but not the 2 Oz.s per brick that the HK spec.s would indicate.
So, a sm. pack of Turnigy 20C would weigh a 1/3 of a pound more than the same 12S/5Ah of Zippy 15C. Given that my Ebike weighs 56 lb.s and my batteries are well placed in the frame, that difference is inconsequential. And if I felt I had to add more 15C just to mitigate voltage sag[in reality, 2V sag is nothing, especially for someone who came from LiCoMg and was used to seeing sag in the 3 to 5 V range!], how does that save weight?
But we are nit-picking. But there is one factor that I.M.O., makes the Turnigy to one to go with and that is US warehouse availability. We here in the States greatly prefer to get our batteries from the US warehouse and for the last 6 months or so, the 15C Zippy 6S/5Ah's have been real spotty, where the Turnigy's have been steadily available.
Since I'm using both, time will tell, but my gut feeling is the Turnigy is the better battery for the money.
Are you talking about these Turningy pack?
http://www.hobbyking.com/hobbyking/stor ... ouse_.html
If so, you wouldn't find anything cheaper for the money. I thing these are the best bang for the buck in term of lipo lol.
And I suppose it's these Zippy 6s?
http://www.hobbyking.com/hobbyking/stor ... oduct=7639
At 22.55Oz/pack, it's lighter than what is advertised. So maybe not the right pack