Hi all and thanks for the replies, really useful. I have a SkyRC T100 on order (coming tomorrow) so hopefully won't be the same potential issue as the D100. Is the figure 8 lead where you plug into the + and - terminals?
Now, looking more closely at the charger, I'm going to need an adaptor cable as the battery has a Deans connector to match the Rival MT10 (when it comes) but the charger has 'banana' connections...