Jan 24, 2013, 07:09 PM Registered User USA, GA, Marietta Joined Aug 2005 8,495 Posts That appears to be a parallel setup you have. As such all cells are automatically balanced. Glen
Jan 25, 2013, 10:56 AM
Registered User
United Kingdom, Higham
Joined Jul 2011
312 Posts
Quote:
 Originally Posted by ggcrandall1 That appears to be a parallel setup you have. As such all cells are automatically balanced. Glen
Thanks Glen.
 Jan 25, 2013, 11:21 AM Registered User Barbados Joined Jan 2011 3,137 Posts Once hooked to the charge cable the current flows from one batt to the other until all are equal voltage,there's no balancing for single cell batt.
 Jan 25, 2013, 07:56 PM Registered User United Kingdom, Higham Joined Jul 2011 312 Posts so would this work if i hooked up 2 - 3 cell 2200 mAh, charge 3 cell @4400 ??? via a parallel cable (2 male XT60 to 1 female XT60 )
 Jan 26, 2013, 02:53 AM Registered User USA, GA, Marietta Joined Aug 2005 8,495 Posts Would you please read this: https://sites.google.com/site/tjingu...arging-how-tos It will give you a better understanding of the overall picture of electrics. And it will answer most of your questions. Glen
Jan 27, 2013, 12:18 AM
I can fly!
Australia, TAS, East Launceston
Joined Aug 2010
85 Posts
Quote:
 Originally Posted by mrforsyth Longer flights ≠ last longer. The reason that a lower charge rate results in a longer flight is that you achieve a more complete charge. More complete charge has been empirically demonstrated to result in fewer usable cycles than charging to a lower termination voltage. As such, lower charge rate can result in lower battery life (# of useful cycles). Mark
Mrforsyth my charger like most modern chargers holds a constant voltage and lowers the current to about 0.2A at the completion of the charge cycle. So regardless of the set charge current the final step of the charge is always the same. I do not expect I am getting a difference of charging capacity by altering the set current. There for by this reasoning I should be able to charge at maximum capacity with no impact to cell life?
 Jan 27, 2013, 02:13 AM Registered User So. Cal. Joined Oct 2004 9,794 Posts All of my chargers terminate when CV current is 1/10th of initial CC current. Consequently, when charging at 10A, charge will terminate when CV current hits 1.0A. Similarly, when charging at 1A, charge will terminate when CV current hits .1A. The 1A charge thus results higher per cell voltage at end of charge cycle than when charging at 10A. What charger are you using? If it indeed terminates when CV current is .2A regardless of initial CC current, then yes, charge capacity should be effectively identical. Mark
 Jan 27, 2013, 04:06 AM I can fly! Australia, TAS, East Launceston Joined Aug 2010 85 Posts I am using a turnigy 150watt charger. I have not played around with it enough to see if the cut off is different at different charge currents. I am trying to find out the best charge rate for my 2200mah nanotech packs without affecting life span too much.
 Jan 27, 2013, 09:38 AM Registered User The Netherlands, NB, Heusden Gem Heusden Joined Dec 2012 27 Posts I see a lot of people using paralell charging for single cell lipos but I wonder how safe it is, in other words what will the current be when you hook up 2 fully charged 260 mAh nanotechs (4.2 V) to 2 'empty' 260 mAh nanotechs (3.5 V), will it exceed the maximum charge C or even discharge C in a worst case scenario?