Question about subvod battery

[Foofightervapegirl]

I have a subvod as a back up.it is fully charged at all times,but doesn't get much use.does anyone know how long it will keep?I would hate to have to buy another,cash is really tight. Thanks in advance!

[Earthling789]

The battery in the sub-vod will not self-discharge very much, if sitting on a shelf (turned off). 

My SO has a sub-vod which sat on the night stand in the bedroom for roughly 4 months.  It was fully charged when she sat it aside, and 4-months later, we put it on the charger, expecting it to be nearly dead... it reached full charge in about 20 minutes and has performed perfectly since then, so I'd have to guess it lost 10-15% power while in storage for 1/3 of a year, and has not suffered any damage from non-use?

[Foofightervapegirl]

Perfect,thank you!mine usually sits for about a month or two at a time,so that works out great!