4 ms·Why are people so picky about storing li-ion batteries at 3.7v?11 points by alwayslikethis 2y agoshawn_w 2y agoWarning: exposure to /r/flashlight is known to drain your bank account and make the neighbors complain about it being too bright at night.ambarp2 2y agoBut it’s fun and, besides, those tiny powerful flashlights have saved my bacon a few times.