Hi, @weeleebee
Welcome to the forum.
quote="weeleebee, post:1, topic:1240120"]
The robot draws a minimun 0.4 amps at a range of 23v to 28v even while doing "nothing"
[/quote]
Does it have an ON/OFF switch?
400mA standby current is very high.
What make/model mower?
Thanks.. Tom... 
