Have a couple of 900mAh batteries that are acting flaky. Should be full-charge - coming off charger after several hour charge with green light. Use them for a while, haven't actually timed the usage, and then they'll start flashing like they're discharged. Turn them back on, 5 clicks, and they'll go a while longer then start the discharge flashing again. This can keep going for a long time until they are finally actually discharged to the point the need re-charging. Anyone have any thoughts?