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Nikon Compact Digital Cameras
General Compact Digital Cameras
Coolpix L Series
Best Rechargable AA's for Nikon L820
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<blockquote data-quote="WayneF" data-source="post: 377996" data-attributes="member: 12496"><p>Sound like they should work out for you.</p><p></p><p>It will always take a little more current to recharge them than discharge could deliver. Recharge is not 100% efficient, and it just takes a little more. Not greatly different, but the exact current to recharge them is not particularly meaningful.</p><p></p><p>For capacity, you want to measure how much it can discharge, how much it can deliver.</p><p></p><p>But I think that you did exactly that... Not sure what C9000 mode you used.. Discharge mode does not recharge. </p><p></p><p>So I suspect you used Refresh mode, which does charge, discharge and recharge, but then what it reports is the discharge mah... which is what you want to see.</p><p></p><p>Check the manual about the modes, but I suspect you did well. </p><p></p><p>Then, also important, if you want to determine its numerical capacity, you should discharge at a 0.2C rate, which for 2400mah, is 480mah discharge rate. See the Break-In mode for that IEC description (where you enter the 2400 mah rating). But if you discharge batteries faster, you get a false low value. If you discharge them slower, you get a false high value. A little different, depending on rate. The IEC ratings want to see 0.2C discharge.</p><p></p><p>I'm not sure how to access the IEC, but see</p><p><a href="https://www.energystar.gov/ia/partners/prod_development/downloads/Battery_Chargers_Test_Method.pdf" target="_blank">https://www.energystar.gov/ia/partners/prod_development/downloads/Battery_Chargers_Test_Method.pdf</a></p><p></p><p>See section 5.3 Measuring Battery Capacity</p><p></p><p>It references the IEC, and says 0.2C.</p></blockquote><p></p>
[QUOTE="WayneF, post: 377996, member: 12496"] Sound like they should work out for you. It will always take a little more current to recharge them than discharge could deliver. Recharge is not 100% efficient, and it just takes a little more. Not greatly different, but the exact current to recharge them is not particularly meaningful. For capacity, you want to measure how much it can discharge, how much it can deliver. But I think that you did exactly that... Not sure what C9000 mode you used.. Discharge mode does not recharge. So I suspect you used Refresh mode, which does charge, discharge and recharge, but then what it reports is the discharge mah... which is what you want to see. Check the manual about the modes, but I suspect you did well. Then, also important, if you want to determine its numerical capacity, you should discharge at a 0.2C rate, which for 2400mah, is 480mah discharge rate. See the Break-In mode for that IEC description (where you enter the 2400 mah rating). But if you discharge batteries faster, you get a false low value. If you discharge them slower, you get a false high value. A little different, depending on rate. The IEC ratings want to see 0.2C discharge. I'm not sure how to access the IEC, but see [URL]https://www.energystar.gov/ia/partners/prod_development/downloads/Battery_Chargers_Test_Method.pdf[/URL] See section 5.3 Measuring Battery Capacity It references the IEC, and says 0.2C. [/QUOTE]
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Nikon Compact Digital Cameras
General Compact Digital Cameras
Coolpix L Series
Best Rechargable AA's for Nikon L820
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