icecube57 wrote:Call me anal but I like 0.005 or Less deviation so im sitting at 4.192 on my lowest and 4.200 on my highest......
Dude that's not anal, I've seen people institutionalised for lesser OCD than that
Seriously that's about as close to perfect as you'll get and unless you want to get the absolute maximum capacity from the pack with a 100% discharge it means nothing anyway. As you would know the cells get out of balance at the bottom end anyway and it's highly likely the first one will hit LVC while the others are still a bit higher. eg most of mine are around 3.4v when the runt hits 3v, but if you unwisely ignore the runt (eg if just using beepers) you'll find the others will cliff dive less than a minute later - which makes zero difference in the real world (other than shortening the life of the pack)
I think the early hysteria about lipo and balancing has made people overly cautious and/or mentalists about the whole thing.
Considering most of us aim for an 80% discharge near enough really is good enough when it comes to balance. If a few cells are at 4.17v while the others are at 4.20v it makes SFA difference to your discharge. Sure those cells at lower voltage are charged to slightly lesser capacity but if you're not using ever last drop anyway then it doesn't matter. I've become particularly aware of the trivialities of precision balancing at the top end recently with my isolated balance chargers. Unlike hobby chargers it chargers each cell individually so you can see how much current each cell is taking. The ones to hit HVC first turn off and allow the other cells to keep charging. On a closely balanced pack (say 4.18-4.20v) The cells that are at 4.18v continue to charge for maybe a minute longer than the ones that have already hit 4.20v and stopped taking charge.
So in use, that extra top up for those cells probably gives 30 seconds of discharge. Or less, and that's under light use (1C or less)
So, assuming you're pulling absolute maximum capacity from your pack, is an extra 30 seconds of riding time worth losing your shit over ?