recharging primry batteries

[vaa]

What happens if I recharge AA primary batteries in a slow charger� The charger stops after a cycle of about 14 hours. I experimented with alkali batteries: after a cycle they were at 1,4 V from 1,19. Is it hazardous? Toxic? Can they blow my hous up? Thanks!

[kifaru]

A battery creates energy via a process of chemical breakdown. Some chemicals are worse than others in this regard. I wouldn't recommend charging any battery that isn't deemed rechargable. All batteries can be recharged to some extent, but you pay more money for a rechargable battery because it will hold that new charge longer, or for many more times than a primary battery. Even the first rechargable batteries (alkaline) lost significant life with each recharge. A simple watch battery can be recharged via solar by placing it on a metallic surface (coin etc.). But it wouldn't last long after. All in all, if it's not rated as rechargable, don't do it. If it was worth it, it would be common.

[vaa]

thanks!
In the meantime I DID experiment with two pairs of alkaline AAs; three of them survived, one of them puffed up (didn't BLOW up)... so I give it up, but I'm not sure how unrerasonable it was; I sometimes o have to buy nonrechargeables...
many thanks again,
vaa