Thanks Ads, that some very valuable intel.
I noticed as I'm always balancing my cells while charging that a lipo will take more time to balance charge as it's getting used. A new one take about half an hour while my old ones may need an hour to do so.
As far as use and best lifetime of a lipo I was told not to charge and keep the lipo charged, 4h max but best to charge at the track before a run.
Try to avoid too much charge per lipo on one day, at least wait for it to cool down. Better to buy some more and rotate.
Try to avoid running to the cutout at 3.00v from the ESC, a good 5-7mn run, 10mn max. You will work between 4.2 and around 3.7 (storage voltage) meaning a better life from the Lipo and because at the currents we are using (huge) the voltage of the cell come down quite a lot when it delivers big currents, enough to lower the cell voltage. My esc monitor this and below the storage voltage (I would say below 3.6v) the cell voltage go lower than the 3.00v recommended, even for a very short period of time and that change the chemistry of the cell and that's one issue that can cause swelling and puffing.
I'm no expert, but it works keeping the cells punchy and unpuffed along the year and be safe.
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