If you want a battery that lasts, we've done the research for you. In our quest to find the best alkaline batteries on the market, we tested several models and brands. Our evaluation included ...

The difference in voltage discharge curves between alkaline and lithium batteries ... Alkaline-based smoke alarms may not provide a timely low-battery warning when using lithium AA batteries ...

This half-inch square ultra-low power energy harvesting LiPo cell charger by [Kris Winer] uses a low voltage solar panel ... and has nifty features like battery health monitoring and undervoltage ...

Alkaline and lithium batteries have different voltage discharge curves ... it may not give you the low battery warning early ...