They should have them at cheapbatterypacks.com. I heard the CBP1650s were being phased out for a new version, so keep an eye out for that. You could also try Amondotech's 1800mAh Titaniums (the ones advertised as capable of a 10C discharge).
In general, the higher capacity cells don't do as well in areas such as self-discharge, overall longevity, and discharge current.From what I found the CBP are being replaced,but could not link to the new on,maybe they are not yet avail.
Thanks,Amondos look good to.
Why 1800 mAh and not 2600 with same 10 c?Are they not available?
IIRC, CPB's Elite 1700's replaced the 1650's.
Where can I find them?