Actually this would have been closer to 700 Watts....I forgot my laptop
was plugged in too!
------ Original Message ------
From: "Adam Moffett" <[email protected]>
To: "Animal Farm" <[email protected]>
Sent: 7/11/2017 10:05:20 PM
Subject: Re: [AFMUG] OT: Road Trip Battery
My '04 Hyundai Accent has a 90 amp alternator. ....though I never did
figure out how many RPM's they assume when giving you that rating. I
read some conflicting facts on that.
Anyway, I have 1000 watt inverter and I've had approx 600 watts on it
while idling for several hours. I can't prove whether the alternator
kept up or the battery was slowly draining.
------ Original Message ------
From: [email protected]
To: "Animal Farm" <[email protected]>
Sent: 7/11/2017 8:49:23 PM
Subject: Re: [AFMUG] OT: Road Trip Battery
If you install the isolation diodes, then yes. But that only prevents
a dead starter battery. If you have 3-4 devices all using 50 watts,
and you have a 50 amp alternator, you only have 600 watts total. The
air conditioner blower is going to take probably 200 watts, the
onboard electronics perhaps 100 watts. So maybe 300 excess. I
wouldn’t count on even that much. I have seen aux connectors fused at
15 amps so that is 180 watts.
My dell has a 90 watt power supply. So two of those running non stop?
From:Jaime Solorza
Sent: Tuesday, July 11, 2017 6:32 PM
To:Animal Farm
Subject: Re: [AFMUG] OT: Road Trip Battery
Not at all...Pep Boys and others sell a simple to install dual battery
inverter and heavy duty fuse system. A good quality inverter would
work well and no big thing to install. I use this for wiring up
inverters for vans and buses to a solenoid to start inverter when
vehicle is started. Prevents draining battery..
Jaime Solorza
On Jul 11, 2017 6:14 PM, "Sterling Jacobson" <[email protected]>
wrote:
I've got a cross country family trip from Utah to New York coming up
and I want to wire up a secondary battery to my Toyota Minivan.
I know, maybe I'm crazy, but I want to be able to run all our
electronics on the trip, including maybe a computer for serving up
video (another topic).
I want it on a secondary system so I get more power and don't kill
the main car battery.
From what I gather I would need a sealed battery to avoid fumes
(mostly).
I would need a some sort of control system so the battery can charge
from the alternator, but not drain the main battery.
I need high gage wire between the batteries/alternater along with
fuse, and also between secondary battery and large inverter for AC
power.
Probably not possible to shove another battery under the hood of the
mini-van, but I haven't checked.
Is this a silly idea?
