Testing LiFePo4 15Ah with Gyrfalcon s8000

I recently went into a rabbit hole of finding the best battery pack for an&#xA;electronic candle that will be installed in a large Christmas Wreath. The pair&#xA;of alkaline batteries holds the charge for 2-3 days; my goal is 7 more. Ideally&#xA;&mdash; 30. The light draws 39mAh: &#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA;&#xA; &#xA;…