On a LoPy using machine.deepsleep() I get just under 18mA drawn from the 5V supply.
Is this the expected result? Can it be improved? Where is the power going?
I know there are a lot of posts on the forum about deepsleep problems, but is there a definitive post somewhere.
Yes they are, just email firstname.lastname@example.org and they'll sort you out
Is the deep sleep shield still available?
If you are talking about Lopy you need deepsleep shield to achive low current
all new modules Wipy3, Lopy4.. do not need it and work in "normal" deepsleep low current mode.