RC-Monster Forums - View Single Post - Balance adapter 3x 2s

lincpimp · 09.01.2007, 02:03 PM

BrianG "Most balancers I've seen aren't using isolated inputs for each cell, so I imagine they simply measure each wire referenced to ground. For example, to get cell 3 on a 4s pack, it probably subtracts the voltage on cells 1 and 2 from the voltage on cell 3 to ground. There really isn't much to a balancer. Most of the resistors on it are used to apply a load to any high cells. All of the measurement and logic must be done via a PIC or something."

Ok, this makes sense. I was not sure if it measured individually or did somesort of subtraction. By leaving out the pos wires of the 2nd and 3rd pack I was having trouble inagining the circuit being complete to measure the cells seperately. However if the balancer subtracts tem to determine the voltage differences your wiring diagram makes sense. Thanks, now I can charge and balance my 2s 5000 packs as if they were a 4s pack, which is how I will use them. I just want to have all 4 cells balanced to each other.

	(#2)
lincpimp Check out my huge box! Offline Posts: 11,935 Join Date: Aug 2007 Location: Slidell, LA	09.01.2007, 02:03 PM BrianG "Most balancers I've seen aren't using isolated inputs for each cell, so I imagine they simply measure each wire referenced to ground. For example, to get cell 3 on a 4s pack, it probably subtracts the voltage on cells 1 and 2 from the voltage on cell 3 to ground. There really isn't much to a balancer. Most of the resistors on it are used to apply a load to any high cells. All of the measurement and logic must be done via a PIC or something." Ok, this makes sense. I was not sure if it measured individually or did somesort of subtraction. By leaving out the pos wires of the 2nd and 3rd pack I was having trouble inagining the circuit being complete to measure the cells seperately. However if the balancer subtracts tem to determine the voltage differences your wiring diagram makes sense. Thanks, now I can charge and balance my 2s 5000 packs as if they were a 4s pack, which is how I will use them. I just want to have all 4 cells balanced to each other. Alot of Savage parts for sale!!!