WhataNut FMA PowerLab8 1000W charger

Snellemin you weren't kidding about their service. Two days from placing the order I received my parallel board from Leo Energy (their actual business name). Fantastic service.

Anyway used the charger for about a week now. Slowly getting used to the menu on this charger. Very different from the chargers I have been using in the past but I think I am getting there. I am still to download the program so I can monitor the charger on my laptop but will do that eventually. Also I am running 3.25 firmware. I know there is 3.27 out now but what should I do and how much do they all differ? The charger is working great now so I don't want to stuff anything up.

This charger absolutely rocks. I can't believe I was charging a 6S 5000mah pack @ 10A and the fan didn't even come on. Didn't need to as the charger was cool as an ice cube. The balancing is incredible. Cells stay exact all the way through. If I didn't test the cells individually with my Fluke I wouldn't have believed it. All the data it displays during charging is great and very useful too. Love it.

Anyway I have an unrelated question. What should be a good internal resistance of 5000mah 40C cell? Between all my batts I am seeing anywhere between 1.4-1.9 milli ohms per cell. Some of my batts are over a year old so no idea if that is still OK. They seem to kick really hard. Some input here would be much appreciated.