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power inverter / battery life

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=95478
Printed Date: April 28, 2024 at 5:20 PM


Topic: power inverter / battery life

Posted By: Zilverado
Subject: power inverter / battery life
Date Posted: July 09, 2007 at 11:52 PM

I'm looking at running a laptop computer on a 300W inverter connected to a Deep Cycle Marine battery. The battery is labelled as 750 MCA and 155 reserve minutes. The power usage of the computer is around 90 Watts (19V x 4.74A).

Can someone tell me how long this battery would run the laptop before requiring a re-charge?

How do a battery's amp hours relate to this?

And how long does it typically take to recharge a battery in the vehicle (while driving). Now I realize this is highly dependant on the size of the alternator, accessories running in the vehicle, battery condition, etc. I'm just looking for a guess.

Thanks.



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Zilverado,
Backyard Mechanic
1986 Chevy Truck & 1992 Nissan Pathfinder



Replies:

Posted By: Zilverado
Date Posted: July 10, 2007 at 8:30 AM
So, now I'm thinking maybe could use a solar panel to continuously trickle-charge the deep cycle battery. The panel I'm thinking about is a 15W output - - supposedly designed to charge systems in vehicles, cottages etc.  Would this be a better idea?

-------------
Zilverado,
Backyard Mechanic
1986 Chevy Truck & 1992 Nissan Pathfinder


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