Recently purchased the Spektrum rechargeable battery (SPMA9602) and charger (SPM9551) for my Tx (DXe) and there doesn't seem to be any type of indicator that lets me know when charging is complete. Has anybody else used this that can provide some guidance ... I don't want to fry the battery or worse yet, my Tx! Accompanying paperwork doesn't say jack and HH has never answered any of my customer support questions, that I've sent through their website. Great products ... horrible customer support