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How many mA, peak, do digital cameras draw from Photo Lithium batteries?
Anybody ever measure what cameras, including cameras with LCD screens,
draw from 223, CR-V3, or CCR-P2 photo lithiums? Also, is there a reason why camera manufacturers use different sizes of these lithium batteries? Also, if the battery specification states "10 mA" draw, why is it that (allegedly) some cameras draw 1,000 mA from the battery? Thanks for all replies. |
#2
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In article ,
fancy nospam tunes wrote: Anybody ever measure what cameras, including cameras with LCD screens, draw from 223, CR-V3, or CCR-P2 photo lithiums? Also, is there a reason why camera manufacturers use different sizes of these lithium batteries? Also, if the battery specification states "10 mA" draw, why is it that (allegedly) some cameras draw 1,000 mA from the battery? Thanks for all replies. The full specs are a set of graphs for a range of current and time. Look at the make and model on your lithium cell and google for specifications. The camera has peak current requirements when taking a shot with flash, a medium demand for a shot w/o flash, and an idle current when on but sleeping. One amp when recharghing the flash and writing the prior shot to the CF card doesn't seems unreasonable. -- a d y k e s @ p a n i x . c o m Don't blame me. I voted for Gore. |
#3
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In article ,
fancy nospam tunes wrote: Anybody ever measure what cameras, including cameras with LCD screens, draw from 223, CR-V3, or CCR-P2 photo lithiums? Also, is there a reason why camera manufacturers use different sizes of these lithium batteries? Also, if the battery specification states "10 mA" draw, why is it that (allegedly) some cameras draw 1,000 mA from the battery? Thanks for all replies. The full specs are a set of graphs for a range of current and time. Look at the make and model on your lithium cell and google for specifications. The camera has peak current requirements when taking a shot with flash, a medium demand for a shot w/o flash, and an idle current when on but sleeping. One amp when recharghing the flash and writing the prior shot to the CF card doesn't seems unreasonable. -- a d y k e s @ p a n i x . c o m Don't blame me. I voted for Gore. |
#4
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In article ,
fancy nospam tunes wrote: Anybody ever measure what cameras, including cameras with LCD screens, draw from 223, CR-V3, or CCR-P2 photo lithiums? Also, is there a reason why camera manufacturers use different sizes of these lithium batteries? Also, if the battery specification states "10 mA" draw, why is it that (allegedly) some cameras draw 1,000 mA from the battery? Thanks for all replies. The full specs are a set of graphs for a range of current and time. Look at the make and model on your lithium cell and google for specifications. The camera has peak current requirements when taking a shot with flash, a medium demand for a shot w/o flash, and an idle current when on but sleeping. One amp when recharghing the flash and writing the prior shot to the CF card doesn't seems unreasonable. -- a d y k e s @ p a n i x . c o m Don't blame me. I voted for Gore. |
#5
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"fancy nospam tunes" wrote in message m... Anybody ever measure what cameras, including cameras with LCD screens, draw from 223, CR-V3, or CCR-P2 photo lithiums? Also, is there a reason why camera manufacturers use different sizes of these lithium batteries? Also, if the battery specification states "10 mA" draw, why is it that (allegedly) some cameras draw 1,000 mA from the battery? Thanks for all replies. 1,000 mA draw is not unreasonable. Camera engineers will work with battery engineers to use whatever batteries will fit the application and be available in general commerce. Each manufacturer will use what best fits his particular application. the 10 mA draw is one test method for batteries. Roughly speaking a 2,000 mAh rated battery will last 200 hours with a 10 mA load. The same battery would last 2 hours with a 1,000 mA load. The most common test charging current and test load current for batteries is C/10 that is for a 2,000 mAh battery it would be 200 mA. |
#6
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"fancy nospam tunes" wrote in message m... Anybody ever measure what cameras, including cameras with LCD screens, draw from 223, CR-V3, or CCR-P2 photo lithiums? Also, is there a reason why camera manufacturers use different sizes of these lithium batteries? Also, if the battery specification states "10 mA" draw, why is it that (allegedly) some cameras draw 1,000 mA from the battery? Thanks for all replies. 1,000 mA draw is not unreasonable. Camera engineers will work with battery engineers to use whatever batteries will fit the application and be available in general commerce. Each manufacturer will use what best fits his particular application. the 10 mA draw is one test method for batteries. Roughly speaking a 2,000 mAh rated battery will last 200 hours with a 10 mA load. The same battery would last 2 hours with a 1,000 mA load. The most common test charging current and test load current for batteries is C/10 that is for a 2,000 mAh battery it would be 200 mA. |
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