how many MAH does a lipo lose in 2 weeks

[blueb8llz]

does anybody have a estimate figure to how much MAH a lipo loses in 2 weeks? reason for asking is because sometimes i take a break from RC and ive had breaks as long as a year. so im just trying to figure if i was to take a year break, how often should i charge up my lipos again. im thinking i should first charge it up 50%, then every month give it another 50% charge. is this the correct way. i dont want to give it a 50% charge if it only like like 1000 mah in that month, which would give my lipo over 50% charge storing.
if it matters, i have a neu energy 5000 mah lipo.