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Posts Made By: Douglas Westcott

March 2, 2004 05:09 PM Forum: Equipment Talk

Any electrical experts out there?

Posted By Douglas Westcott

Vince, I would not be quite as optimistic as David. I would use efficiencies of about 50 percent at these rates on a 150W inverter. You are putting 18W into the batteries, so the inverter is supplying on the order of 30-35 watts max. Note that you should not be drawing down these batterries to flat, otherwise thier life is severly cut short, on the order of tens of recharge cycles, not the hundreds one expects. Normally one should only discharge to 1/2 the rated AH before recharging.

Doug W.

May 8, 2004 11:24 AM Forum: Home Observatories

To Sirius Observatory owners

Posted By Douglas Westcott

Try the Sirius Users Group at Yahoo. I have a home model.

Doug W.