On Jan 31, 2:58*pm, ransley wrote:
What should the current draw be with a car parked, for the night, not
running, Volvo v40 with factory alarm but never activated. How do you
check this. In the morning my battery is low. Can I use a 120v digital
clamp on amp meter.

No.
Use a decent digital multimeter. Turn everything off, make a
connection to the battery negative cable and the battery negative post
(it can be done, be clever) and loosen the negative battery cable
clamp. With the meter set on MA, quickly slide the cable off the post,
take the reading and put the cable back on. For typical vehicles the
reading will be around 30-40 MA (YMMV). This technique won't screw up
fussy alarms, radio anti-theft codes and all that. When you get it
back together, check the charging voltage, which should be around 13.8
at idle, rising to 14.6 or so at 2000 RPM. If the system checks are
all good, read the Consumer Reports on batteries and go shopping for a
new one. Good luck.

Joe