Ken,

If you primarily want to keep the clock alive, I think the 2000 mAH Sanyo Eneloop are hard to beat, based on cost, availability, and self discharge rate. I'd avoid Alkaline cells for long term use because of the potential damage from leaking.

73,
Rich  AC7MA

On 06/27/2013 11:58 AM, Bob wrote:
Hi Ken,

While higher capacity may seem better, it is sort of a false promise.  The
highest capacity cells tend to have high self-discharge, which causes them
to deplete just sitting on the shelf quickly.

Look for low self-discharge batteries.  Sanyo's Enerloop (~2000mah) or
Sanyo's XX (~2500mah) are two good examples.  Hard to beat amazon pricing.

Enerloop are about $20 for a set of 8.  XX are about $34.

73, Bob, WB4SON
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