To anyone reading this post and those who have replied to my original question (thanks by the way
). This setup worked:
iMax B6 charger set to charge NiMh batteries at 1Amp setting charging 8 1.2V/11000mAh Nimh batteries in series held together in D Cell holders.
I used D Cell holders to hold the cells. As there is no temperature sensor, i kept the whole setup in the middle of my garage away from everything else. But the batteries did not break a sweat. They got slightly luke warm. But when i did this its winter time and my garage is not heated.
Previouslly I tried with 0.3Amp setting and after 14 hrs the batteries were not charged at all. Same with 0.5Amp setting. I think 1/10C (which is 1Amp for a 11000mAh battery) is the minimum setting you need.
Hope this helps whoever tries this.
PS: Before putting all 8 cells in series, I checked each one to see if its within +/-10% of each other for voltage output. There were a few which were reading 0.8V, I charged these seperately to bring them up to scratch with the rest of them.