BAC Forum

General Boards => Technical Support => Topic started by: jeffprupis on July 25, 2019, 08:07:15 PM

Title: Amp draw on inverter.
Post by: jeffprupis on July 25, 2019, 08:07:15 PM

Is it normal for the coach to draw 15-20 amps when on inverter? (2 hotspots, 2 iPhones, MacBook & iPad, TV running)
With inverter OFF we draw 3-5 amps.

Title: Re: Amp draw on inverter.
Post by: Steve Huber on July 25, 2019, 09:40:59 PM

Jeff,
That's about right.
Steve

Title: Re: Amp draw on inverter.
Post by: Bill Lampkin on July 26, 2019, 05:30:50 AM

One thing most miss when searching for amps is the over-the-air antenna amplifier; the one that has a red led that lights up when its on.

Title: Re: Amp draw on inverter.
Post by: Fred Brooks on July 27, 2019, 03:09:19 PM

    A simple equation to keep in mind is the ten to one inefficiency of an inverter. If you want one amp of 120volt a/c power, it takes 10amps of 12volt dc battery power to produce it. Another draw on your house batteries is just leaving your inverter on in idle mode will draw amperage from your house batteries. Common problem is folks put there coach back in storage and forget to turn the inverter/charger OFF and come back to a coach with dead batteries. Never a good idea to discharge your deep cycle batteries more than 50% of their capacity.
  Blessings, Fred