Battery discharges unused, after re-set again loaded

So I bought myself two pairs of glasses, before I even had a Blu-ray 3D Player. Thus, to me, only the Samsung SMART remained to test 3D pattern program. That was very beieindruckend eg the clip with the magician.

The glasses were then parked next to the TV until I realized that they were constantly on, although theoretically no 3D signal they could have led it to turn. The "Intelligent Auto Shutdown When No 3D mode" so do not work for me. I've then parked in another room. Meanwhile - months later - came the 3D player and I got the glasses today rausgeholt and wanted to test. Both batteries dead. The first glasses at the hanged USB cable, but no response ..... the spectacle. The second clamped, so the flashes and invites ...... taken Another USB Micro cable and tried it ... no reaction at the first spectacle. Only after you press the re-set button-she began to invite.

For occasional users so if the glasses does not react during charging, try reset and panics not matter how I .... and check early enough in front of movie enjoyment and possibly charge ....
Has anyone experience how long unused glasses cargo holds? If the battery is suitable for continuous charging? Unfortunately do not find in the Technical Reference. data, which battery type is installed.