No electro-chemical variance / cycle life relationship can be charted. You may put a huge period after that.
If a flooded battery does not revert all cells to original density that battery is not charged. Put a period after that as well.
BFL13 tried his best to show what happens of 50/90 % recharging was performed on a repetitive basis.
When I encounter a shumdit smart charger that can not fully recharge a battery, which means nearly all Einstein programmable frauds, I chop interest right then and there. The product is a failure.
Advertising does not win, opinion does not win, hypnotic lights and psychotic buttons do not matter. What matters, the only thing that matters, is IS THE ELECTROLYTE RESTORED TO FULL DENSITY. Either it is or it isn't. This isn't rocket science.
Yeah MICROWAVE SMART BUTTONS. Buy a thousand dollar microwave oven. One that advertises it has a central processor and inverter. Would give a CRAY II a run for it's money...
Then buy any one of five dozen brands of microwave popcorn. Read the instructions
FIRST AND FOREMOST
DO NOT USE THE POPCORN SETTING ON THE MICROWAVE OVEN.
DO NOT LEAVE POPCORN UNATTENDED. WHEN POPPING CEASES SHUT OFF THE OVEN.
The oven manufacturers are in the same league with the smart charger crowd.
The manufacturer of the popcorn has everything to lose
The microwave manufacturer has ZERO to lose.
Need I distill this down even further?