| > No manufacturer recommends charging above 1c, so I wouldn't do it.
| > Fred Marks of FMA is working on a 20 minute charging system for
| > lipolys, so it looks like the 1c charging barrier will soon be a
| > thing of the past.
Personally, I wouldn't belive it until it's actually done and tested
by many people who know what they're doing.
| As it was, I waited three months before I found an Astro 109 from
| LightflightRC. The Astro 109 took about 45 minutes to charge a 3S3P
1C = it will take about an hour to charge a fully discharged battery.
With LiPos, you don't usually fully discharge your battery (if you're
smart) so it takes less time. But beyond that, I don't see how you're
going to do it in 20 minutes unless your battery is only 1/3rd
My Triton starts slowly, then ramps up to the full charge rate you've
programmed in, the slows down as it approaches full charge when
charging LiPo and Pb. So even if you set it at 1C, the average charge
rate is a good deal lower than that.
(In contrast, with NiCd and NiMH, it starts out a full speed, but
occasionally stops to give the battery an opportunity to peak again in
case it missed it. This slows things down somewhat, but does help
prevent frying your pack.)
But the *only*
way to charge a battery in 20 minutes that is mostly
discharged would be to charge at approximately a 3C rate. With the
manufacturers saying only to charge at 1C, I don't know how much I'd
trust tripling that.
(Of course, when a manufacturer says their NiCd cells can be fast
charged, they usually mean they can be charged at C/4 to 1C, and yet
we'll push them at 2-3C and things generally work ok, and my LiPo
packs barely get warm at 1C, so maybe they really can handle 3C. But
I won't be doing it anytime soon.)
| I wonder if I could afford the one by Fred marks?
If you're in this hobby, even the most expensive chargers (like the
$300 Alpha) probably cost less than one good plane, so if you're
willing to give something up, sure! (No idea on the price of the
| Would you have anymore information on the cost?
So go straight to the source
click on `Contact'.