Looking to get a full-size Saber battery to supplement the two Cut-Rate Lithium-Ions that I have. I like the Cut-Rate batteries, but they rattle a bit and the rails aren't the strongest.

I assume OEM Saber batteries in any variety are unobtainium, so are there any recommendations for aftermarket ones that can be charged in an Impres rack charger? Right now I am leaning toward the Multiplier Ni-Mh.