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FisherPaulA(at)johndeere.
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 Posted: Sun Mar 28, 2010 12:47 pm Post subject: Voltage measurements for Schumacher 1562A |
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I realize the issue is the new model versus the old version, but I did take some measurements that I wanted to report. I have three of the 1562A’s – all of which appear to be the “old version” with the 6V-12V switch on the front panel. All of them were purchase from Wal-Mart on two different dates. The last two were purchased in August or September of 2009.
SWC0907 SWC0701 SWC0907
Holding voltage 13.33V 13.32V 13.30V
Charging voltage 14.39V 14.54V 14.30V
The “SWC” numbers were stamped into the bottom of the case – I have no idea if these are relevant or not, but I included it in case it made sense to someone. The first charger is connected to a tractor (standard automotive type battery), the second and third are in airplanes with RG batteries.
Test procedure: After the chargers had been on for over 24 hours, I took readings of the holding voltages. Then I turned lights on for 2-3 minutes to activate the charging. After the voltages stabilized (3-5 minutes), the voltages were recorded again.
I’m not sure if this helps anyone or not, but I at least wanted to report what I found…
Paul A. Fisher
Q-200, N17PF
RV-7A, N18PF
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trumanst(at)neitel.net
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| Posted: Sun Mar 28, 2010 2:36 pm Post subject: Voltage measurements for Schumacher 1562A |
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I too checked out the Schumacher 1562A, new version. I have a PC680 in my plane. I flew for 2.6 hours last Sunday and did not put the charger/maintainer on.
Today when I got the airport I first checked the voltage of the battery. 12.83 VDC. All readings were taken at the battery terminals. Next I fired up the 1562A. Initial voltage was 14.2, then very quickly up to 14.9. After about a minute the voltage stabilized at 14.88 VDC.
Half hour later 14.86 to 14.87 VDC.
Hour one 14.83 to 14.84 VDC.
Hour two. Finally reached float at 13.4 to 13.5 VDC.
Hour three 13.45 VDC.
Test concluded. It appears to my untrained eye that the unit is functioning properly.
Bob, please let me know if my assumptions are correct or incorrect.
Kevin Boddicker
TriQ 200 N7868B 160 hrs
Luana, IA.
On Mar 28, 2010, at 3:41 PM, Fisher Paul A. wrote:
| Quote: | I realize the issue is the new model versus the old version, but I did take some measurements that I wanted to report. I have three of the 1562A’s – all of which appear to be the “old version” with the 6V-12V switch on the front panel. All of them were purchase from Wal-Mart on two different dates. The last two were purchased in August or September of 2009.
SWC0907 SWC0701 SWC0907
Holding voltage 13.33V 13.32V 13.30V
Charging voltage 14.39V 14.54V 14.30V
The “SWC” numbers were stamped into the bottom of the case – I have no idea if these are relevant or not, but I included it in case it made sense to someone. The first charger is connected to a tractor (standard automotive type battery), the second and third are in airplanes with RG batteries.
Test procedure: After the chargers had been on for over 24 hours, I took readings of the holding voltages. Then I turned lights on for 2-3 minutes to activate the charging. After the voltages stabilized (3-5 minutes), the voltages were recorded again.
I’m not sure if this helps anyone or not, but I at least wanted to report what I found…
Paul A. Fisher
Q-200, N17PF
RV-7A, N18PF
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