mixed capacity nimh series pack, mag85. Safe?

[VegasF6]

I just got the last of the parts to put together my mag85. It will be 9 AA's, eneloops for now perhaps higher drain batteries in the future. I see the mag85 runs well from 10 cells.

I would like to load up my 9XAA adapter in a mag 4D and put a accupower lsd D (or perhaps a C) cell behind that. Any comments?

I sort of figured it would be OK since I see luxluthors custom battery packs often put a sub-c in the tailcap, but then the sub-c is a little closer in capacity, and Lux may be taking some additional safety precautions I am not aware of.
*edit*
Well, I did just find this post by Luxluthor that sort of addresses what I want:
http://candlepowerforums.com/vb/showpost.php?p=2363396&postcount=8
It isn't exactly what I want to do, but it is close, so perhaps this is a "no go."
Well perhaps a 10th eneloop in a C or D cell adapter. I always forget I even have those silly little adapters that came in the eneloop power pack.

 

[monkeyboy]

I just got the last of the parts to put together my mag85. It will be 9 AA's, eneloops for now perhaps higher drain batteries in the future. I see the mag85 runs well from 10 cells.

I would like to load up my 9XAA adapter in a mag 4D and put a accupower lsd D (or perhaps a C) cell behind that. Any comments?

I sort of figured it would be OK since I see luxluthors custom battery packs often put a sub-c in the tailcap, but then the sub-c is a little closer in capacity, and Lux may be taking some additional safety precautions I am not aware of.

Usually, this is a very bad idea since the lower capacity cells will be reverse charged by the higher capacity ones as they are depleted resulting in permanent damage. This doesn't happen in Lux's packs because there is only one odd cell and it has a higher capacity than the others. The light will have gone out long before the higher capacity Sub-C starts to reverse charge the others.

So your idea should work so long as you make sure that the odd cell has a higher capacity and is not in a lower state of charge than the others

BTW, I'm pretty sure 10 cells will instaflash the 1185. People using 10 cells probably use ones with big voltage drop under load. Eneloops hold their voltage quite well.