Howdy, I have been using the wall charger that came with my Airtronics radio the packs and radio are 1 yr. old my tx. now only charges to 10.5 volts when it used to hit 11.2 or more right off the charger. I am wondering what should I do and about how to cycle them Ive run them down and recharged several times in the last year I'm afraid my capacity has went out the window, don't know about the reciever pack haven't checked it with a voltmeter in a long time some advice please. Thanks