"Larry" wrote in message
...
"Meindert Sprang" wrote in
:

450mA at 3.3V

450ma x 3.3V = 1.485w at 13V = .114A x 24 = 2.74AH which isn't much a
significant part of a small 330AH house battery, even smaller on the two
banks of beasts we drag around in the stern. 2.7AH a day isn't much of
an issue, is it? The stern running light uses 10-20 times that much
overnight.

Ahem, does a PDA or laptop have a 330Ah battery?
The average battery life of a PDA (Paul said he uses one) halves if you
enable its Wifi. Not so for BT.

PLEASE tell me you're getting the 3.3V from a highly efficient tiny
switching supply

I am, don't worry :-)

Meindert