DMM auto-shutoff questions

[Electro Fan]

When a DMM goes into auto-shutoff how much drain is on a battery?  Or said another way, if hypothetically a battery (shelf-life?) lasted a year in DMM that was fully turned off, would the same battery last a year in sleep mode after auto-shutoff or something less?  If less is it negligible, or something significantly less?  Or, net, net:  if you have auto-shutoff on a DMM is it worth turning the DMM fully off, or is it ok to just let it go into sleep mode?  (How much of these answers is DMM model dependent?)

[mij59]

The Fluke 87V has about 50uA in "auto-shutoff " mode, so its better to switch the meter off.

[retiredcaps]

The answer will vary from meter to meter, but in my findings, auto-shutoff or sleep mode will always draw some current whereas turning it off usually draws 0.0 mA.

If you use poor quality batteries or batteries that are prone to leak, leaving it in auto shutoff mode will probably cause battery leakage and ruin your potentially expensive multimeter.  I use Eneloops or equivalents whenever I can.