RC-Monster Forums - View Single Post - Higher pinions = safer MMM's? Or no? Someone's lying....

J57ltr · 11.03.2009, 02:49 PM

The ICE charger I have only measures resistance when doing a discharge. After a few minutes during the discharge cycle you can see the graph rise then fall back down, so basically you have what looks like a cosine pulse. To me it's the charger dropping the load and allowing the voltage to rise then applying the load again, then it calculates the resistance. It doesn't seem to change too much with loads between 1 and 10 amps. I have noticed that different packs have different readings and they do change but they are usually within about 5% from what I have seen on this charger. this is the only charger I have experience with that has this function, but I thought that all chargers only did this during discharge.

One question I have is how much resistance is too much? The other thing I see is that the internal resistance will increase with the number of cells. So basically all things being equal a 6S pack will have a higher internal resistance than a 4S pack made from the exact same cells.

Jeff

	(#2)
J57ltr RC-Monster Aluminum Offline Posts: 610 Join Date: Feb 2009 Location: Tomball/ Houston Tx.	11.03.2009, 02:49 PM The ICE charger I have only measures resistance when doing a discharge. After a few minutes during the discharge cycle you can see the graph rise then fall back down, so basically you have what looks like a cosine pulse. To me it's the charger dropping the load and allowing the voltage to rise then applying the load again, then it calculates the resistance. It doesn't seem to change too much with loads between 1 and 10 amps. I have noticed that different packs have different readings and they do change but they are usually within about 5% from what I have seen on this charger. this is the only charger I have experience with that has this function, but I thought that all chargers only did this during discharge. One question I have is how much resistance is too much? The other thing I see is that the internal resistance will increase with the number of cells. So basically all things being equal a 6S pack will have a higher internal resistance than a 4S pack made from the exact same cells. Jeff The Warnings & Cautions discussed in this manual cant cover all possible conditions/situations. It must be understood that common sense and caution are factors which cant be built into this product.