I'd advise against always recharging to full unless your using it straight away of course, or within a few days. Don't know what your charger is, but seriously consider a 3rd party charger,capable of storage voltage, the batteries are getting old now, so they need TLC.
Do a forum search there's lots of info.
There have been some comments and questions recently about proper care of LiPo batteries such as the ones we use in our Typhoon H aircraft. This article does a very good job of providing insight into these batteries and guidance on maintenance of them. There are a number of good chargers...
yuneecpilots.com