Asda batteries

Azari

r2015 wrote: »

http://www.theregister.co.uk/2014/08/16/detroit_parking_meter_batteries/

There's a big difference between: 'Must be brand X' and 'don't use the cheapest no-name brand you can find'.

Sooler

Azari wrote: »

And you actually believe this crap? :rotfl:

Believe it or not - it's a get out clause.

Sooler

brightonman123 wrote: »

battery leaking = faulty, imo. no matter what device its in.

So Asda need only replace the battery.

Azari

Sooler wrote: »

Believe it or not - it's a get out clause.

LOL, That is a very naive interpretation.

If it were that easy to place nonsensical restrictions in the instructions no manufacturer would ever be able to be held liable for anything.

Anyway, in you enthusiasm to defend the device manufacturer you seem not to have noticed that it is the battery manufacturer with whom the OP is concerned.

Sooler wrote: »

So Asda need only replace the battery.

No.

Have a read up about consequential loss.

paddyrg

brightonman123 wrote: »

battery leaking = faulty, imo. no matter what device its in.

Kinda yes kinda no.

Alkaline batteries ALL warn about leakage partly because they're prone to it, and partly because what they leak is damaging. The fastest way to blow them is to attempt to recharge them - some installed devices like heat alarms may be mains wired and keep a very gentle charge across the battery which will kick in when the mains fails. They can also be pushed into a 'recharge' situation when the other batteries in a stack may be slightly fresher, or just for some reason slightly stronger - which is why you always change all batteries, not just some.

Recharging an alkaline battery releases hydrogen gas, but it cannot all be vented safely in a sealed cell, so it can rupture the seal, leading to leakage.

Some brands will mitigate against this by having more consistent cell chemistry, or better seals, or other small technologies - perhaps the heat alarm manufacturer, knowing this and knowing their device, mandated use of cells they thought less likely to rupture.

Azari

paddyrg wrote: »

Kinda yes kinda no.

Alkaline batteries ALL warn about leakage partly because they're prone to it, and partly because what they leak is damaging. The fastest way to blow them is to attempt to recharge them - some installed devices like heat alarms may be mains wired and keep a very gentle charge across the battery which will kick in when the mains fails. They can also be pushed into a 'recharge' situation when the other batteries in a stack may be slightly fresher, or just for some reason slightly stronger - which is why you always change all batteries, not just some.

Recharging an alkaline battery releases hydrogen gas, but it cannot all be vented safely in a sealed cell, so it can rupture the seal, leading to leakage.

Some brands will mitigate against this by having more consistent cell chemistry, or better seals, or other small technologies - perhaps the heat alarm manufacturer, knowing this and knowing their device, mandated use of cells they thought less likely to rupture.

No.

If there was any possibility that that would happen they would have specified the use of rechargeable cells only.

And in that case the specification would have had legal significance because it would be based on science and not whimsy.

trukdiver

Azari wrote: »

No.

If there was any possibility that that would happen they would have specified the use of rechargeable cells only.

A lot of rechargeable batteries self discharge more than alkalines, which would make them unsuitable for an alarm Even "hybrid" batteries such as Eneloops self discharge more than alkalines.

Azari

trukdiver wrote: »

A lot of rechargeable batteries self discharge more than alkalines, which would make them unsuitable for an alarm Even "hybrid" batteries such as Eneloops self discharge more than alkalines.

Yes, but if you look at the post I was responding to it talked about alarm systems that include a permanent recharge system (which a lot do) so that isn't really relevant.

In any case, most alarm systems start beeping when they detect that the battery is getting low so it would only make a difference to how often the batteries needed changing not to the overall safety of the system.