Battery voltage question... - General Help and Assistance on using CHDK stable releases - CHDK Forum

Battery voltage question...

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Offline chrish

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  • SD870IS
Battery voltage question...
« on: 02 / June / 2008, 11:18:21 »
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Hi Folks,

Just wondering if you need to set battery MAX and MIN voltages in Allbest 50. I am using an SD870 and MAX voltage is set at 4100 mV and MIN is at 3500mV. Can't find relevent info in the Canon manual. Does anyony know if these figures are right or how you find the right figures for a particular battery type (NB-5L)? Thanks.

Chris

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Offline fe50

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  • IXUS50 & 860, SX10 Star WARs-Star RAWs
    • fe50
Re: Battery voltage question...
« Reply #1 on: 02 / June / 2008, 11:27:33 »
Hi chrish,

the default settings fit very well on my SDS870, no set up necessary.

You can adjust the values for your cam/batt combination by yourself, see more informations here.

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Offline ac17

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Re: Battery voltage question...
« Reply #2 on: 22 / February / 2009, 06:59:15 »
I had a similar question for the SD850.

What I did was adjust the MAX voltage to match what was written on the nb-5l battery (3.7 volts).

I dont know if thats correct though.

Re: Battery voltage question...
« Reply #3 on: 22 / February / 2009, 20:46:23 »
Fully charge the battery set and take a couple shots; let the camera sit 15 minutes or so. Enable and check the camera readout for actual battery voltage, then set MAX to that voltage. This takes the "glaze" off the newly charged battery and gives you a somewhat realistic MAX voltage.

Fast charging won't recharge a battery as fully as a slow charge overnight. New batteries require 3 or 4 charge/use cycles to realize their full potential charge. As batteries age and get abused (run dry, left uncharged) they lose their ability to take a charge. Different battery sets can easily yield different performances. All these things affect how well the cameras calculated battery life coincides with reality. Check and set the voltage after doing the type of charge you normally do with the type of batteries you normally use.

Rufus


 

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