[jacquesm]

Look, I'm really not sure where you are coming from. Batteries are solved problem since 1920. It's just gadget and computer manufacturers that suddenly see a way to make a uick buck and to drive their cycle of planned obsolescence.

If I could do it at 6 and my mom can do it at close to 80 then I really don't see why other people could not. Sometimes there just isn't a problem unless you make one. Standardize the cells, sell them through the supermarket chains at a normal price, just like Duracell and other quality battery manufacturers have been able to do for ages. Problem solved, once and for all. No need to go through AliExpress, Amazon or some other shady online store, if you are that concerned about trust then the only way to solve that is to buy from a reputable vendor.