Interested Electric Newbie...

[glassdoctor]

ICE does 8 amps max... it drops closer to 7 amps for a 4s pack.

Lipos always take about an hour to charge, (actually longer than that) doesn't matter how big the battery is. That's because you are not supposed to charge them at more than 1c, or 1x the capacity of the battery.

So the 8000 packs (8 amp hour) can be charged at 8 amps which will take one hour. Same for a little 1200mah pack... charge at 1.2 amps, etc. A battery is not usually completely dead so it won't need 100% capacity charged back to it (only 75% dead would mean 45 min to charge, etc)...

...but it also takes extra time at the end of the charge to top off the battery because the charger will slowly ramp down the current once it hits 4.2v per cell until the current is zero. This stage takes a while... never really tracked how long.

You don't HAVE to wait for it to do that, but that's when it's FULLY charged. You would give up a few mah but save a lot of time if you are waiting to use the battery, and just stopped the charge when it starts dropping the current.