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n744bh(at)bellsouth.net
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 Posted: Thu Jul 01, 2010 8:52 am Post subject: Battery tender |
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I've got a BatteryTender Plus that has a float voltage of 12.7 volts. This is on both a new battery and the one that is being replaced. Is it time for a new Batterytender?
Bill
Glasair SIIS-FT
[quote][b]
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nuckolls.bob(at)aeroelect
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| Posted: Thu Jul 01, 2010 8:03 pm Post subject: Battery tender |
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At 11:26 AM 7/1/2010, you wrote:
| Quote: | | I've got a BatteryTender Plus that has a float voltage of 12.7 volts. This is on both a new battery and the one that is being replaced. Is it time for a new Batterytender? |
Sounds like it . . . if you're sure the voltmeter
is reading correctly . . .
Bob . . . [quote][b]
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n744bh(at)bellsouth.net
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| Posted: Fri Jul 02, 2010 9:47 am Post subject: Battery tender |
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Thanks Bob, yep, I checked it with 3 different meters and they all read the same. I just talked to Deltran and they confirmed that the Batterytender probably was ready for the big parts box in the sky. That'll teach me to let the thing fall off the wing...more than once <g>.
Bill
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skywagon
Joined: 11 Feb 2006
Posts: 184
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| Posted: Fri Jul 02, 2010 5:32 pm Post subject: Battery tender |
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Bill,
...before you trash the BT, take it apart.
Unless, they have changed the assembly, it used to have 2 adjustable pots inside. You had to pick off a little silicon glue first. One pot set the max voltage charge level before it flipped state to the float voltage level. The second pot set the float voltage. That one should be about 13.2 - 13.4 volts. If you can make adjustments on your unit, make very tiny pot corrections and wait to see where the level settles out. I have seen brand new units not set correctly. You can also let us know if they pot the units now, or got rid of the pots.....
David
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n744bh(at)bellsouth.net
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| Posted: Fri Jul 02, 2010 6:45 pm Post subject: Battery tender |
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Thanks David. I'll give it a try tomorrow if I get out to my hangar. This is an old unit...had it for about 7-8 years now. I ordered up a new so if this doesn't work I have a back up. Any idea on which pot is which?
Bill
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skywagon
Joined: 11 Feb 2006
Posts: 184
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| Posted: Fri Jul 02, 2010 7:54 pm Post subject: Battery tender |
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Bill,
I knew you might ask me that question.....which pot.? My old notes are in the hangar and I can't get to it until the 6th as we are heading to WA in the morning....on 4 wheels not, 3. I'll try to find the notes, when I return.
David
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nuckolls.bob(at)aeroelect
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| Posted: Sun Jul 04, 2010 7:09 am Post subject: Battery tender |
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At 12:46 PM 7/2/2010, you wrote:
| Quote: | | Thanks Bob, yep, I checked it with 3 different meters and they all read the same. I just talked to Deltran and they confirmed that the Batterytender probably was ready for the big parts box in the sky. That'll teach me to let the thing fall off the wing...more than once <g>. |
Hmmm . . . Dave has suggested exploring a diddling-of-the-pots.
It that doesn't revive the ol' feller, consider a Schumacher
1562 series device from WalMart. About 1/2 the price if you
have to have the BT shipped in . . . and about twice the snort
(0.8 versus 1.5 amps).
Bob . . . [quote][b]
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