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Siphon rule
(slrpnk.net)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
Can confirm. Mine will take about 3 days to charge from very low to full on a regular wall outlet. Still worth it sometimes though, like when I'm visiting family or camping or something. If I'm gonna spend the day somewhere (like 6+ hours, let's say) it might be worth it.