I use 4-cell and have had a lot of problems with run-time-at one time i went through a stage where i was traying after discharging, or traying before i race-which has a result has lost me a lot of runtime etc,
the HV's ive been using around 9-10 per cell (40-pack/4-cell) and have not really had great results with them all season,i also run the SMH at 5 per cell but have been charging at 4amps the Hvs at 4.3,and have had a lot of probs with run time,-
i then tried a few things with my newer Ultra's 3000,i tried 8 per cell at 4-4,3 amps (i was advised by the shop i got them from to use 8-per cell) and things where o.k ish,i then tried 4 per cell and charged at 5.0 amps,which in my book is the way to go,has they where very punchy and had plenty of run time!!
but all season i think ive been using to much theshold and not charging them at higher enough amps..one guy said his method of madness was to charge/use then leave em until your next meeting them morning before-- discharge then use em.
- but pesonally its not made much diffrence/may be a little,
so from now on im going to use lower threshold 4-5max per cell and charge at a higher amps say 5 amps/race then discharge to 3.90,and now and again say every2-4 weeks tray them just before i race...(same has the above post really).
A bit of useless info but just thought i would show what ive tried all season etc...