devonwoody
Established Member
Some gadgets state not to use rechargeable batteries.
Why is that?
Can you ignore that instruction?
Why is that?
Can you ignore that instruction?
AA batteries
- Thread starter devonwoody
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John Brown
Freeloading Social media influenza
Non-rechargeable cells generally have a nominal voltage of 1.5V
NiCad and NiMH are closer to 1.2V
Li Ion are around 3.7V, although can show up to 4.2V when fully charged, and down to 3.2V or thereabouts when discharged.
This can make a difference for some devices.
Also, the maximum deliverable current may sometimes be a factor.
So probably not a good idea to ignore, unless you have all the relevant information.
NiCad and NiMH are closer to 1.2V
Li Ion are around 3.7V, although can show up to 4.2V when fully charged, and down to 3.2V or thereabouts when discharged.
This can make a difference for some devices.
Also, the maximum deliverable current may sometimes be a factor.
So probably not a good idea to ignore, unless you have all the relevant information.
devonwoody
Established Member
OK your knowledge accepted.
My fuji camera wants 4 rechargeable batteries =4.8 v
It takes non rechargeables if I remember? thats 6v.
What do you think to that?
My fuji camera wants 4 rechargeable batteries =4.8 v
It takes non rechargeables if I remember? thats 6v.
What do you think to that?
maltrout512
Established Member
My old nikon 3.2 meg would use any type aa battery. In the menu section you changed the battery type ie normal/nicad etc. Not sure why because more often than not I would forget to change the setting :roll: It's well over 10 years old and still works.
John Brown
Freeloading Social media influenza
I strongly doubt that you will harm your camera by using rechargeables. If it works, then you will probably not get the same battery life as you would using non-rechargeables, but that would be the case in any event, as non-rechargeable cells pretty much always have higher energy densisty.
So if it works, then I'd say go for it.
I have a front lamp for my bike that takes 3 AAA cells, I use NiMH, but I do get a very limited life out of them. It's not a big problem, as the only night cycling I generally do is to the pub quiz once a week, but if I were going on an all-night bike ride I would take two sets, or fresh dry cells.
The same applies to your camera, if you're going on a long trip to somewhere where you can't buy AA cells easily or plug in the charger, then beware.
So if it works, then I'd say go for it.
I have a front lamp for my bike that takes 3 AAA cells, I use NiMH, but I do get a very limited life out of them. It's not a big problem, as the only night cycling I generally do is to the pub quiz once a week, but if I were going on an all-night bike ride I would take two sets, or fresh dry cells.
The same applies to your camera, if you're going on a long trip to somewhere where you can't buy AA cells easily or plug in the charger, then beware.
Sheffield Tony
Ghost of the disenchanted
Rechargeable batteries, having a low internal resistance, can deliver a lot of current if shorted by a fault. Enough to let smoke out of the wiring, so a fuse of some sort is pretty mandatory. Toys etc made on the cheap economise by omitting the fuse, which is safe enough with regular batteries, but possibly a fire hazard with NiCads. Well, that's my theory...
devonwoody
Established Member
I suppose also if I put rechargeable aa batteries in a clock it will run slower (only 1.2v) which was my intention when I posted the thread. (didnt realise that they had that less voltage)
but what about those camera batteries mine are ok on rechargeables but the capacities vary, 2100 , 2900 etc. ?
but what about those camera batteries mine are ok on rechargeables but the capacities vary, 2100 , 2900 etc. ?
Racers
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Hi, Devonwoody
Your clock has a crystal in it to regulate the time, otherwise it would get slower as it runs down.
It will work fine with a rechargeable.
The higher capacity battery's will last longer in your camera.
Pete
Your clock has a crystal in it to regulate the time, otherwise it would get slower as it runs down.
It will work fine with a rechargeable.
The higher capacity battery's will last longer in your camera.
Pete
Not all rechargeables are equal. If you put a NiCad in a clock, it would run down by internal discharge before the clock had drained it. That's why you must not use them in smoke alarms.
However there are newer sorts which keep their charge much better. Maplins sell them as 'Hybrid' and they come pre-charged in the pack. The big advantage is that you can keep them charged up ready for use, without finding that they have gone flat in storage. Nominal voltage is 1.2v.
However there are newer sorts which keep their charge much better. Maplins sell them as 'Hybrid' and they come pre-charged in the pack. The big advantage is that you can keep them charged up ready for use, without finding that they have gone flat in storage. Nominal voltage is 1.2v.
devonwoody
Established Member
And Andy, do they have numerous recharge cycles when in use?
bugbear
Established Member
devonwoody":28z921tr said:
Only if it's the world's most poorly designed clock.
:lol: :lol: :lol:
BugBear
devonwoody":2amew1nl said:
I don't really know. I bought some a couple of years ago, mostly to use in the WiiMotes, for which they have been ideal - much better than NiCad or NiMH. Easy to have a pair in use, and a replacement charged up ready to swap over.
It's these that I'm talking about - doubtless available elsewhere for less:
http://www.maplin.co.uk/hybrid-the-next-generation-rechargeable-battery-219932
devonwoody
Established Member
Yes the blurb says they recharge upto 1000 times and can last up to a year on a charge. (if unused I assume)
