RC-Monster Forums - View Single Post - Hyperion Charging question

SpEEdyBL · 10:17 PM

Whoever you have been listening to is wrong.

First, Lipo packs always come ~50% charged for safety reasons. I would be more concerned if your pack took its full 4300 mah on the first charge.

Whatever you do, NEVER let a lipo cell go higher than 4.25 volts. A lipo cell is considered fully charged when it rests at 4.2 volts, no matter what basically and this is why the charger reduces the current, while keeping the cells at 4.2 volts, until the amp rate is zero. If you try to put more mah into the pack after that, the voltage will rise and that is a complete no no.

Sorry for the tone of this post, but you are seriously asking for trouble if you try do what you were mentioning.

I don't know why your A123s are only half charging some of the time, but do you run them down all the way?

	(#2)
SpEEdyBL "Out of spec" enthusiast Offline Posts: 820 Join Date: May 2005	11.01.2008, 10:12 PM Whoever you have been listening to is wrong. First, Lipo packs always come ~50% charged for safety reasons. I would be more concerned if your pack took its full 4300 mah on the first charge. Whatever you do, NEVER let a lipo cell go higher than 4.25 volts. A lipo cell is considered fully charged when it rests at 4.2 volts, no matter what basically and this is why the charger reduces the current, while keeping the cells at 4.2 volts, until the amp rate is zero. If you try to put more mah into the pack after that, the voltage will rise and that is a complete no no. Sorry for the tone of this post, but you are seriously asking for trouble if you try do what you were mentioning. I don't know why your A123s are only half charging some of the time, but do you run them down all the way? Check out my custom converted 8ight: Sub 7lb, lowest CG of any 1/8 buggy http://www.rc-monster.com/forum/show...894#post367894 Area 52 Ranch Raceway T.R.C.R. Last edited by SpEEdyBL; 11.01.2008 at 10:17 PM.