Plowboy,
You're making me nervous here. Are you saying you fly once a week and DON'T recharge before each time out? You're really pushing your luck.

You should absolutely charge them before you fly, and not "just a little". Give them an overnight charge on that walwart that came with the radio. It's low charge rate won't hurt the packs (Tx & Rx), and you might save your plane.

A battery pack is not a 'gas tank' that will still have 3/4 of a tank a week later. Packs lose some of their charge every day (NiCD's about 3 to 5% IIRC), which means your Rx pack, fully charged, will lose 20 to 35% of it's charge in a week.

Be wise, energize.
Dennis-