Or if you are big power user then these would do. XT90. Although at present XT60 do not have this facility so a resistor as per Mike's post will be an option.
The new versions of XT90 now come with back covers so no need for shrink wrap either after soldering.
XT90 are big plugs with 5.5mm pins (good for about 4000 Watts) but in a narrow fuselage without a lot of space it might be a struggle. They are designed for SWG10 but you can get away with SWG12.
I bought a big bag of them, some for my Extra 300 EP because at 40+ volts the spark used make ME jump! Also fitted on "Jacob's" Angel and a few other planes with 6 cell and upwards.