RC-Monster Forums - View Single Post - Thunderpower 40C 'Pro-Race' Battery Charge Rate

SpEEdyBL · 10.21.2009, 11:34 PM

I charge my 4s Zippy 25c batteries at 2c, and only at 2c, no more, no less. When they were new, they took just over 4500 mAh to reach 90%. After three months and about 15 race days with about 2 or 3 charges on each pack per race day, they take just over 4300 mAh. Not bad since they were only $60 each. performane and temps are still the same. internal resistance has gone up from 18-22 to 24-28 mOhms.

	(#4)
SpEEdyBL "Out of spec" enthusiast Offline Posts: 820 Join Date: May 2005	10.21.2009, 11:34 PM I charge my 4s Zippy 25c batteries at 2c, and only at 2c, no more, no less. When they were new, they took just over 4500 mAh to reach 90%. After three months and about 15 race days with about 2 or 3 charges on each pack per race day, they take just over 4300 mAh. Not bad since they were only $60 each. performane and temps are still the same. internal resistance has gone up from 18-22 to 24-28 mOhms. 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.