Thread: Hybrid vs petrol - surprising outcome

Originally Posted by Maca49

Same with re celling power tool batteries. Factory cells are measured and batched, ie A with A, B with B and so on. Re calling you just put random cells together. Like putting epsom salts in your lead/acid battery, works but it’s temporary

Me just put random cells together? Ha - I batch by colour...

It's a interesting one - the tests on them can go on for days and no cells test the same at the end of it. That's a true black art - the guys that do it for a living will look at a pair of results virtually identical and separate the cells into different batteries. When you ask why they just tap their noses!

My gear measures charge voltage and amperage against time, total capacity, and discharge current against a known load among other things. It's really very basic in the scheme of that game, but generally you can arrange things so the highest resistance cell is highest in the queue so to speak so the others are working off that to balance the load.