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#1
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NIMH (rechargeable) and Alkaline non rechargeable
Hi all,
Coming to grips with battery terminology. Have read lots of tutorials, opinions, grazed google posts and haven't really found out if one can put charged NIMH batteries in the place of non rechargable Alkaline batteries. I realise that voltage seems to be higher in Alkaline non rechargeables than the NIMH rechargeables. I think there is a loss of quality in signal for torches and radios and some other gear ?? Trickle charge versus fast charge ?? Thanks, all opinions welcome. -- * * Pebble in Boulder * * who would never underestimate the humble floppy |
#2
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NIMH (rechargeable) and Alkaline non rechargeable
Pebble wrote:
Hi all, Coming to grips with battery terminology. Have read lots of tutorials, opinions, grazed google posts and haven't really found out if one can put charged NIMH batteries in the place of non rechargable Alkaline batteries. I realise that voltage seems to be higher in Alkaline non rechargeables than the NIMH rechargeables. I think there is a loss of quality in signal for torches and radios and some other gear ?? Trickle charge versus fast charge ?? Thanks, all opinions welcome. -- * * Pebble in Boulder * * who would never underestimate the humble floppy NIMH are often preferred over alkaline. I don't know if it is still true but there was a time where alkaline were not good for digital cameras etc, they drained quite quickly. The real problem with NIMH is they don't like to be standing around doing nothing. If you leave them for a while and come back to them they could be drained, so you have to kind of stay on top of them. Myself I usually have two sets, one in camera and one charged ready for replacing, but due to ill health I have hardly used my camera and on checking yesterday I found the batteries were drained, so popped in the replacements and they had drained too. -- Paul (Need a lift she said much obliged) ------------------------------------------------------- Stop and Look http://www.geocities.com/dreamst8me/ |
#3
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NIMH (rechargeable) and Alkaline non rechargeable
Thanks Paul,
Still don't know if they are swappable though? My camera for instance takes alkaline OR NIMH, it mentions in the manual . Of course I use NIMH because the alkaline batteries send you broke. What I meant was if a radio, torch etc doesn't mention in the manual about using NIMH, just gives info like "insert 2 AA Alkaline batteries as shown in the diagram below" can NIMH be used in place of them? -- * * Pebble in Boulder * * who would never underestimate the humble floppy "Paul Heslop" wrote in message ... Pebble wrote: Hi all, Coming to grips with battery terminology. Have read lots of tutorials, opinions, grazed google posts and haven't really found out if one can put charged NIMH batteries in the place of non rechargable Alkaline batteries. I realise that voltage seems to be higher in Alkaline non rechargeables than the NIMH rechargeables. I think there is a loss of quality in signal for torches and radios and some other gear ?? Trickle charge versus fast charge ?? Thanks, all opinions welcome. -- * * Pebble in Boulder * * who would never underestimate the humble floppy NIMH are often preferred over alkaline. I don't know if it is still true but there was a time where alkaline were not good for digital cameras etc, they drained quite quickly. The real problem with NIMH is they don't like to be standing around doing nothing. If you leave them for a while and come back to them they could be drained, so you have to kind of stay on top of them. Myself I usually have two sets, one in camera and one charged ready for replacing, but due to ill health I have hardly used my camera and on checking yesterday I found the batteries were drained, so popped in the replacements and they had drained too. -- Paul (Need a lift she said much obliged) ------------------------------------------------------- Stop and Look http://www.geocities.com/dreamst8me/ |
#4
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NIMH (rechargeable) and Alkaline non rechargeable
Hi Paul
NiMH are a good replacement for Alkalines in applications that have a high drain rate (ie. require a releative large amount of power over a short period of time) or used constatly and recharged regulary. These applications include cameras, flashes, walkie talkies, digital music players, etc. In general NiMH batteries can be substituted for Alkaline batteries, check your owners manual of the item to know for sure. Alkaline batteries work best for items used infrequenly. Like emergency flashlights since they don't run down rapidly. Remember NiMH batteries will self discharge at 40% per month. For example, I use NiMH batteries in my camera flash. I use Alkaline batteries in my led flashlight that I keep in my truck. In general a trickle charge is better for the batteries and may be harder on your patence. I generally like to use a quick charger, currently a Duracell 15 min. charger. It has a fan below the batteries so that they do not get hot. Hope this helps. William -- Message posted via PhotoKB.com http://www.photokb.com/Uwe/Forums.as...photo/200701/1 |
#5
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NIMH (rechargeable) and Alkaline non rechargeable
In article 6c780d1b9c253@uwe,
"William Hathaway via PhotoKB.com" u15201@uwe wrote: Hi Paul Remember NiMH batteries will self discharge at 40% per month. No, some types of the latest NiMh AA cells come fully charged and will hold their charge for up to a year without use or recharging. Ansmann makes some cells that do this that are NiMh. Some companies maxes a similar claim for AA cells that are not NiMh. Panasonic, for instance. -- To reply no_ HPMarketing Corp. |
#6
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NIMH (rechargeable) and Alkaline non rechargeable
Thanks William and Paul,
I've never seen in a manual "don't use NIMH" so I suppose is OK. I've got a radio that takes Alkaline batteries and have substituded NIMH but have been told that they don't pick up signal quite so well, voltage issues or something. Haven't noticed this yet, but when I go bush (600 km from nearest pub!) I might then. Yeah, trickle charges are a pain, but I think they're probably better. I keep some charged and well sealed in the freezer, defrost when needed. Slows the self discharge down, apparently. Didn't know it was normally 40% per month though! Wow I'd say those latest NIMH that hold their charge for over a year would have a hefty price tag! Thanks for all your help. -- B-) Pebble in Boulder "William Hathaway via PhotoKB.com" u15201@uwe wrote in message news:6c780d1b9c253@uwe... Hi Paul NiMH are a good replacement for Alkalines in applications that have a high drain rate (ie. require a releative large amount of power over a short period of time) or used constatly and recharged regulary. These applications include cameras, flashes, walkie talkies, digital music players, etc. In general NiMH batteries can be substituted for Alkaline batteries, check your owners manual of the item to know for sure. Alkaline batteries work best for items used infrequenly. Like emergency flashlights since they don't run down rapidly. Remember NiMH batteries will self discharge at 40% per month. For example, I use NiMH batteries in my camera flash. I use Alkaline batteries in my led flashlight that I keep in my truck. In general a trickle charge is better for the batteries and may be harder on your patence. I generally like to use a quick charger, currently a Duracell 15 min. charger. It has a fan below the batteries so that they do not get hot. Hope this helps. William -- Message posted via PhotoKB.com http://www.photokb.com/Uwe/Forums.as...photo/200701/1 |
#7
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NIMH (rechargeable) and Alkaline non rechargeable
Pebble wrote:
Thanks Paul, Still don't know if they are swappable though? My camera for instance takes alkaline OR NIMH, it mentions in the manual . Of course I use NIMH because the alkaline batteries send you broke. What I meant was if a radio, torch etc doesn't mention in the manual about using NIMH, just gives info like "insert 2 AA Alkaline batteries as shown in the diagram below" can NIMH be used in place of them? I think usually they recommend alkaline due to its having a long lasting effect, plus if I remember it rightly when they drain they don't ooze that gunk all over, so for torches etc they are much better than the old style battery. I am not sure that NIMH would last as long in a standard device as an alkaline but as long as you don't mix and match they should be fine. -- Paul (Need a lift she said much obliged) ------------------------------------------------------- Stop and Look http://www.geocities.com/dreamst8me/ |
#8
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NIMH (rechargeable) and Alkaline non rechargeable
"William Hathaway via PhotoKB.com" wrote:
Hi Paul NiMH are a good replacement for Alkalines in applications that have a high drain rate (ie. require a releative large amount of power over a short period of time) or used constatly and recharged regulary. These applications include cameras, flashes, walkie talkies, digital music players, etc. In general NiMH batteries can be substituted for Alkaline batteries, check your owners manual of the item to know for sure. Alkaline batteries work best for items used infrequenly. Like emergency flashlights since they don't run down rapidly. Remember NiMH batteries will self discharge at 40% per month. For example, I use NiMH batteries in my camera flash. I use Alkaline batteries in my led flashlight that I keep in my truck. In general a trickle charge is better for the batteries and may be harder on your patence. I generally like to use a quick charger, currently a Duracell 15 min. charger. It has a fan below the batteries so that they do not get hot. Hope this helps. William -- Message posted via PhotoKB.com http://www.photokb.com/Uwe/Forums.as...photo/200701/1 Clears a few things up for me :O) -- Paul (Need a lift she said much obliged) ------------------------------------------------------- Stop and Look http://www.geocities.com/dreamst8me/ |
#9
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NIMH (rechargeable) and Alkaline non rechargeable
? "Pebble" ?????? ??? ?????? ... Hi all, Coming to grips with battery terminology. Have read lots of tutorials, opinions, grazed google posts and haven't really found out if one can put charged NIMH batteries in the place of non rechargable Alkaline batteries. I realise that voltage seems to be higher in Alkaline non rechargeables than the NIMH rechargeables. I think there is a loss of quality in signal for torches and radios and some other gear ?? Trickle charge versus fast charge ?? Thanks, all opinions welcome. Well, since I got my orbit intelligent charger I use rechargeable batteries for the torch (mini mag lite)which istrunctions say explicitly *not* to use rechargeable batteries but I cannot understand why when the worst scenario would be a burnt out lamp (4 euros a set of two)so I am using NiMHs on it.(Except of course the digital camera kodak cx 7300-two nicd pairs)also the little radio I take at work-nicds too-(the same pair I use at my walkman).So, I think, anything that operates on alkalines can use NiMHs, and of course I won't suggest ignoring the manufacturer's instructions,but the savings are great.... -- Tzortzakakis Dimitrios major in electrical engineering mechanized infantry reservist dimtzort AT otenet DOT gr |
#10
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NIMH (rechargeable) and Alkaline non rechargeable
Paul Heslop wrote:
Pebble wrote: Thanks Paul, Still don't know if they are swappable though? My camera for instance takes alkaline OR NIMH, it mentions in the manual . Of course I use NIMH because the alkaline batteries send you broke. What I meant was if a radio, torch etc doesn't mention in the manual about using NIMH, just gives info like "insert 2 AA Alkaline batteries as shown in the diagram below" can NIMH be used in place of them? I think usually they recommend alkaline due to its having a long lasting effect, plus if I remember it rightly when they drain they don't ooze that gunk all over, so for torches etc they are much better than the old style battery. I am not sure that NIMH would last as long in a standard device as an alkaline but as long as you don't mix and match they should be fine. All my standard flashlights (torches)have NIMH batteries. The newer hi-powered flashlights are supposed to use li-ion batteries. I also use NIMH batteries in my portable radios, clocks, CD players, automatic lawn sprinkler system, home automatic heating/air conditioning thermostat, and just about anywhere alkaline batteries are called for. Exception would be where the manufacturer states NIMH batteries should not be used. I once read that notice for an article I bought but now I can't remember what that article was. |
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