batteries

[xmanfe1999]

Hello! Is it really dangerous to reload disposable batteries and what can happen? My father, who is 78 years old, finds it very fast and clever and does it on his car battery. I'm really concerned (I've got a battery charger and they speak of possible explosion) and I'd like to be able to convince him to stop. Thank you.

[amethyst21]

hi

I'm not to sure what you are trying to say here...you say to reload disposable batteries....do you mean recharge disposable batteries...

if so firstly you CANNOT and MUST NOT attempt to recharge disposable batteries, they can explode, the contents of the battery contains various chemicals that will stick to your skin and burn you quite severely, also if the chemicals get into your eyes then you could also be blinded. think of a hand grenade exploding, this is what will happen if you attempt to recharge disposable batteries.

why dont you buy your father some recharchable types this will give him what he needs.

you also mention something about a car battery, i dont understand what you are trying to say here??????.

hope this helps

Alan (electronics engineer by trade)

[xmanfe1999]

Thank you, Amethyst, by "reload"I of course meant recharge (I'm French, excuse my English). I thought it was dangerous and just needed some professional advice( an engineer's opinion will do just fine) to try to convince my father (he's a bit obstinate sometimes, if not obsessional, particularly about being diddled (?) at all levels... He thinks rechargeable batteries and battery chargers are too expensive, as he can manage with disposable batteries he recharges with his car battery (I don't know exactly how he does it, he says it only takes him a few seconds... and he's proud of himself. I can't believe it. Maybe I could add the ecological side to the question. Thanks a bunch anyway.

[solera]

Your father is using a car battery to connect to non rechargeable batteries and this gives the full output into the battery and is seriously looking for trouble, 5 seconds he might get away with ,10 minutes equals real problems I won't go into too much detail except to say please try to stop him using a car battery for this purpose, you do see on the market certain "battery chargers" sold for this precise purpose but they use very very low input current and in reality do not fully recharge the battery.

[xmanfe1999]

Thank you Solera, I'm seeing him tomorrow. I will show him your message as well as Amethyst's. Unfortunately he doesn't understand English, but I'm a teacher and I'll try translating as accurately as possible. Thank you again.

[WoWo]

cher M. snr de xmanfe1999 svp ne rechargent pas vos batteries � l'aide d'une batterie de voiture car il est tr�s dangereux.

[xmanfe1999]

Thank you for your answer Wo Wo, I showed it to my mother, she's the one to convince my father...

[miles488]

many people think non-rechargable batteries are not-rechargable but it totally is! and it's totally dangerous!! still - it's the way they do it at the factory to start with ...or so i'm led to believe. a slightly less dangerous way for getting a lil extra juice out of an old battery is to give it a good chew - you can get a bit more action from the acid inside that way and it really works as was demonstrated to me when i worked in uk max security prisons - it's an old lag's trick for getting the most out of them when funds are low - but watch it if you've got sharp teeth!

[thermalCat]

Battery chargers work by passing an alternating current through a battery cell. The hazard is that hydrogen gas is released from a cell when it is charging. Non-rechargable sealed-cell batteries are not designed to vent the gas, so will burst open if they are recharged too quickly. Car batteries are designed to vent this gas, but you must recharge them in a well ventilated space to avoid a build up of explosive gas.

I'l leave you to decide whether chewing a battery is a good idea or not.