Hey Guys,
I bought a H9 DVT (Digital Voltmeter /Tachometer a few weeks ago, and it came with a battery. It worked fine, but the next time I tried to use it, the LOW BATT came on. I chalked it up to being a bad battery, went and put a brand new Energizer it it, it worked fine, then same ole thing happened......... Next time I went to the field, LOW BATTery again. I blamed myself... maybe laid the thing on its top and kept the button pressed so it stayed on.... I put a new energizer in it, left it on my workbench (turned off of course) came back the next day, and well, I guess you can figure it out from here......LOW BATTery, again, never used, turned off overnight on the bench. Now, it will still give a tach reading with the LOW BATT, but the voltmeter will not read.
Anybody else had this problem?

Thanks,
Keith
Charleston, WV

Those seem to like to say low battery. Both my unit and that of a friend do that. The voltmeter continues to operate, but I'm not that trusting of it. The tach seems to operate about normal; that is not that good, but normal.

You can check the tach with a flourescent lamp. The instruction sheet that came with the unit gives the speed it should indicate.

Larry

There must be a draw on the battery even when it is cut off. I was thinking a splicing a microswitch like they use on RC cars to cut off the battery. Right now, I just take the battery out. It's a pain but seems to work better than spending $$$ on batteries.

James