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Old 02-08-2004, 10:43 AM   #15
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A powerful problem

Quote:
Originally posted by Navigator
One thing that I found out the hard way is that if the polarity to your univolt is reversed, bad things happen, and it is a bear to figure out!
Dick
At the very least, your battery will discharge VERY quickly, and recharge opposite polarity, with a resulting loss of amp capacity and amp/hour rating, not to mention strange things happening like your water pump running backwards. And these are the least bad things. If this happens, hook up a non-polarity specific load to the battery, like a light or two, and completely discharge the battery again, and use a slow charge to charge the battery back up with the correct polarity.
Terry
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Old 02-08-2004, 11:52 AM   #16
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univolt...

installation test #1

Installed battery this morning, and made sure every thing in the trailer was turned off.
Flipped on my newly installed "smart" switch and the enclosed pic tells the reults.Now its a bitt higher charging output than my "on the work bench" test and thats just ok w/me.
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Old 02-08-2004, 11:59 AM   #17
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univolt

installation test #2

Here is the results of test #2. With just the over head [oven]
fan running and the over the kitchen sink ligh switched on!
John hd, you say there should be an increase in voltage?
Should I worry bout a small decrease?
Ideas? suggestions? congradulations?

~mark~
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Old 02-08-2004, 12:07 PM   #18
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Ideas? suggestions? congradulations?

markus

looks like congrats are in order!

assuming your battery is charging, the voltage should continue to drop a bit.

the increase in voltage i was referring to was the open lead voltage vs. the voltage with the battery connected.

looks like it is working.

hit your "smart switch" with the lights in the trailer turned on, do they get brighter when you energize the univolt?

john
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Old 02-08-2004, 12:18 PM   #19
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univolt..........

We'll call that test #3

Yes indeedy, the lights get brighter all right!

Thanks John, and every one else,all those two cents add up!

Good learning experience!


thanks all

~mark~
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Old 02-08-2004, 02:51 PM   #20
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when charging

As a quick rule of thumb, when amps are high, as in a low battery being charged, volts are low, when the volts get up there, the battery is charged.
Terry
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