Originally Posted by
turbowop
If charged to a given MAH at 2c, that battery will have the same runtime as a battery charged to the same MAH at 5c, or any other charge rate. Mah is Mah.
And all this hoopla over reduced service life when charging at higher rates has yet to be proven, IMO.
There may be studies and theory, but in practice in the field I don't believe it. Any pack I own that allows for charging at greater than 1c gets at least a 2c charge. IR in every one of those packs is still low and they all still balance quickly and evenly, and they all are well over a year old now.
All you guys that are worried can enjoy wasting time at 1c. I'll stick to higher charge rates because nothing I've seen with this practice on my own packs has proven to be harmful.
And...for what it's worth, I store my packs on a wooden shelf, without a Lipo sack in sight, OMG.

There is no study lol, if anyone could see how fast a pack can suck MAH out when using a 4.5T 550 motor and 90C you would have no issue charging your packs at 20A. We could say drive slower because we wouldn't want to pull more than 1C out of the pack because it will shorten the life span.