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Hydraulic, wind, geothermal, marine energy, biogas ...Reliability: small manual recharging lamp

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delnoram
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Unread Messageby delnoram » 17/07/09, 20:21

I have disassembled some crank lamps and some are equipped with Lithium batteries 2032 battery whose unfortunately the life is particularly short.
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Unread Messageby Former Oceano » 17/07/09, 20:50

Ditto for me with a lamp that is at the same time radio. It is enough that the radio starts up and hop is empty. And in deep discharge it's nothing more ...

Otherwise I have basic 2 that hold better. During the first use I made a full charge by playing the crank during 10 minutes.

In camping I do it again to a person who is bored except that a brutal broke the handle that I have to pick up.

I think that a simple electrochemical capacitor would be more effective than batteries that in the end no longer hold the load no?
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Unread Messageby delnoram » 17/07/09, 22:06

Cranks often break, especially if you try to turn faster than 100 very much per minute.

For capacitors, those for memory backup type "Gold Cap" are clearly preferable to the current electrochemical issue size / capacity, but also for the incomparable life compared to lithium batteries.

Only risk, overheating, but without comparisons with that of lithium : Cheesy:
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Unread Messageby Corpse Grinder 666 » 17/07/09, 22:10

Is not it better a simple lamp with lithium battery and what is used by the police?
example: Image

(Moderation by ex-ocean 17 / 07 / 09 22: 35)
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Unread Messageby Flytox » 18/07/09, 00:06

I have a crank model that worked "well" at the very beginning. (despite a much lower autonomy than announced in the manual ...)
Now you have to start cranking all the time and it seems to me that the hotter it gets, the sooner it loses charge (not even 1 day).
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Unread Messageby Woodcutter » 18/07/09, 01:04

Me I have a model to condo and loading by "handjob"! : Mrgreen:

Bought on econo I think, or on a link hosted by écono, (there is 4 soon ...) and it still works, even the one I never use! (but it takes time to "wake up" ...)
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Unread Messageby Did67 » 18/07/09, 10:39

delnoram wrote:.... especially if you try to turn faster than 100 very per minute.
:


I do not think it's a good idea at all to try to shoot fast. On the contrary, turn slowly. Otherwise, the intensity of the current produced by the dynamo may be too strong for the circuits and the battery ... I think.
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Unread Messageby Christophe » 18/07/09, 10:46

Woodcutter wrote:Me I have a model to condo and loading by "handjob"! : Mrgreen:

Bought on econo I think, or on a link hosted by écono, (there is 4 soon ...) and it still works, even the one I never use! (but it takes time to "wake up" ...)


Yes, good memory Bucheron: it was a partnership, we had not yet the shop at this time.

On the other hand my parents had bought one also but ... it does not work anymore (at all) ... You have to wake her up?

How long?
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Unread Messageby Christophe » 18/07/09, 10:48

delnoram wrote:I have disassembled some crank lamps and some are equipped with Lithium batteries 2032 battery whose unfortunately the life is particularly short.


Uh all the one I disassembled (sold or sold) was NiCd or NiMh.

Put lithium in a dynamo lamp is not a little ... stupid? Cf: https://www.econologie.com/forums/recharge-n ... t7962.html
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Unread Messageby Woodcutter » 18/07/09, 14:15

Christophe wrote:[...]How long?
About 2 minutes ...
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