I asked the attractive lady at the Samsung display stand in Britomart and she advised, JB, Dick Smith or Noel Leeming, but none of these were able to supply the charger (Noel Leeming had cables).

I've tried charging my device (Tab 7.7) from a iPad charger (2.1 Amp) but it did not like that, nor does it like 1 Amp chargers, the only charger it is fully happy with is it's own one.

Note: when I charge from other power supplies, once the power is low it locks up and only comes back to life when connected to its own charger. With the iPad charger and a 1 AMP charger it never full charges. With a 1 Amp charger the charging battery icon does not go away while the device is off.