[marc02228]

Originally Posted by rwaudio

There are two ways to correctly hook it up. However you need the matching software settings to the hardware configuration that you use. If you are using the PC interface go to the options tab and under start settings there is a pull down called "Node Wiring" this basically tells the charger what wires to use. It's in the manual but I believe FMA wiring uses 1 and 9 and XM/EH uses 1 and 2.

The important key to getting consistent Ir readings is to use alligator clips or similar to connect the balance wires to the cell tabs directly and not the current carrying blocks/connectors or whatever you are using to connect the charger to the cells. (Notice in the attached picture I keep the high current connections and balance wires as separated as possible)

My cells get warm to the touch but not hot when charging/discharging at 38A.

Thanks for your explanation. My cells just get a little bit warm, not hot. So the Ri has to be ok, since I use your preset (38A discharge), now.
After I changed the connection of the balancer cables on the tabs, i get a Ri of 0.8mΩ except one cell which had 0.9mΩ

these are the Capacities of my sample cells...

#1 18563 0,9m
#2 18377 0,8m
#3 18243 0,8m
#4 18380 0,8m
#5 18093 0,8m
#6 18010 0,8m
#7 18660 0,8m
#8 18390 0,8m