chas58 wrote:I’m back. Thanks for the feedback.
The problem with PING (or LiFePO4), is the weight. Lifepo4 is about 50% heavier than lithium Ion, and I’m going for light weight.
(Comparing 3.2v Lifepo cells to 3.7v Li-ion cells, you are going to need more cells (weight) with lifepo4)
And you are right, I don’t need 4C as I am running 14amps. 4C is just for headroom. Like dogman said, 10ah at 4c should be quite comfortable at 15-20 amps. Those bottle batteries are 1C, and an 8ah 1C battery just isn’t going to cut it.
You should contact April from OSN.
They have the 2.9ah panasonic cell that can do 10A+ discharge for less than 8$/cell. They have excellent cycle life too. Their battery packs are built with good care using gaskets and thick nickel tabs.
You'll need only 10S3P so 30 cells.
Besides that what's wrong with these ?
http://www.hobbyking.com/hobbyking/stor ... duct=20837
Can't beat that price.