> "Gerry Kaslowski" <[EMAIL PROTECTED]> wrote
> I just picked up a 7E and gave my son my Elan IIE. The 550 EX says you
> can use FR6 AA Lithium batteries, bit the BP-300 for the 7E says not
> to. Question, what are FR6 lithium batteries. I have some Energizer AA
> Lithium Photo batteries, gold with a red top. Are these FR6 or not. Even
> the guys at Samy's photo weren't sure.
> Two CR123A batteries cost me about $10.50 at WalMart. When I can find
> them, the AA Lithiums run about $10.00 for 4. It seems that 4 AA lithiums
> would last longer than 2 CR123A batteries. Anyone know for sure ?
Hi Gerry and List,
Happy New Year.
The Lithium AA battery may last longer, but you risk overvoltage damage
to your camera. Since the BP-300 instruction leaflet and the sticker on
the BP-300 battery cover warns specifically against using Lithium-AA cells,
I can imagine such damage might not be covered under warranty.
The rated capacity for a CR123A battery is 1300mAh, which is under half
the rated capacity of EL91 (Lithium AA = ANSI/NEDA 15LF) battery at 2900mAh.
http://data.energizer.com/batteryinfo/product%5Fofferings/lithium/lithium.htm
http://data.energizer.com/batteryinfo/application%5Fmanuals/l91.htm
http://data.energizer.com/datasheets/library/primary/lithium/l91.pdf
I loaded up a BP-300 with 4 fresh Lithium AA cells, and measured terminal
voltage of 9.5V under no load! I didn't have the courage to fry my
brand new Elan 7E especially when Alkaline batteries can provide a similar
capacity (2850mAh for Energizer) at a safer voltage.
http://data.energizer.com/batteryinfo/product%5Fofferings/alkaline/energizer/alkaline%5Fconsumeroem.htm
http://data.energizer.com/batteryinfo/product%5Fofferings/alkaline/energizer%5Fe2/energizer2.htm
http://www.duracell.com/OEM/Primary/Alkaline/mx1500pc.html#4
Cheers
Julian Loke
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