Inverter Powering Laptop - Page 2 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #11  
Old 08-26-2008
Member
 
Join Date: May 2007
Location: Transient-Presently Alameda,CA
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
tsingtao is on a distinguished road
Thanks guys -- but......... Aims replaced the first inverter, good people to deal with. Guess it doesn't rule out TWO defective units. Other problem with that is that it powers tv and friends laptop with no problems.
Reply With Quote Quick reply to this message Share with Facebook
  #12  
Old 08-26-2008
Member
 
Join Date: May 2007
Location: Transient-Presently Alameda,CA
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
tsingtao is on a distinguished road
brak,
I think you have the solution. I'm using the cheapo now, and charging laptop, and it is working fine. Still would like to know why the better unit will not work with my system yet is fine with others.
Reply With Quote Quick reply to this message Share with Facebook
  #13  
Old 08-26-2008
timebandit's Avatar
Senior Member
 
Join Date: Sep 2002
Posts: 928
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 13
timebandit is on a distinguished road
If ya just gotta find out you may want the see if the manufacture has a web site and and send them an email.

Quote:
Originally Posted by tsingtao View Post
brak,
I think you have the solution. I'm using the cheapo now, and charging laptop, and it is working fine. Still would like to know why the better unit will not work with my system yet is fine with others.
Reply With Quote Quick reply to this message Share with Facebook
  #14  
Old 08-26-2008
hellosailor's Avatar
Senior Member
 
Join Date: Apr 2006
Posts: 10,875
Thanks: 2
Thanked 101 Times in 98 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Most inverters are rated to perform at 14.4volts from alternator power--not the 12-12.4 typical on battery power alone.

So if your engine is not running, that could be all it takes to stop you. Check the inverter docs, check the voltage you have going into the inverter. Some also are supplied with a cheapie cig lighter cord, and require heavier gauge direct wiring to support their full rating. There's often voltage loss in the wiring to the cig lighter socket, as well.

While it is a dedicated expense, a DC-to-DC adapter (like the Igo Everywhere or Kensington/Targus Airpower) is usually more flexible about tolerating a wider DC input range, and more efficient than using one inverter plus a seecond laptop brick. The Igo runs off AC or DC, just uses two different cords and is a bit bulkier to do that. Some computer makers offer direct "dual" AC/DC power adapters as well.
Reply With Quote Quick reply to this message Share with Facebook
  #15  
Old 08-26-2008
Senior Member
 
Join Date: Jan 2007
Posts: 387
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
Northeaster is on a distinguished road
I had the same thing happen with my Panasonic toughbook cf-51, on a cheap 300w inverter. I just assumed it was because I tried the easy approach, cigarette type adapter. I figured that not only was the adapter wire gauge small, but the run of wire from the battery (or DC panel) to the cigarette socket was likely small gauge as well. Haven't tried to wire the inverter directly to the house bank yet!

I guess the small guage wire to the socket would not explain why it did work with your friend's laptop, though!
Reply With Quote Quick reply to this message Share with Facebook
  #16  
Old 08-26-2008
HerbDB's Avatar
Senior Member
 
Join Date: Sep 2000
Location: Eastern Pennsylvania
Posts: 203
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 15
HerbDB is on a distinguished road
On our trip to the Bahamas, I had a small 300 watt inverter that would power the TV and my sons game systems. It plugged into a cigarette lighter slot. It would charge the HP widescreen laptop, but it would not run while connected. Similar to your problem.

I also had an inexpensive 1500 watt inverter ($80 online) wired directly into the battery bus. The cables and fuse mount cost more than the inverter. It would run the computer as well as the coffee maker and microwave. You don't need an expensive auto switching system to run your AC appliances.
__________________
Herb DuBois
Beneteau 36CC
Split Decision
Reply With Quote Quick reply to this message Share with Facebook
  #17  
Old 08-26-2008
Senior Member
 
Join Date: Aug 2006
Location: Arlington, VA
Posts: 1,812
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 10
btrayfors will become famous soon enough btrayfors will become famous soon enough
tsingtao,

The specifications on this inverter look OK...

Since this is the second one you've had trouble with, I suspect that either their quality control stinks OR there's something amiss in your onboard setup.

What size cable are you using to connect the inverter to the batteries? How long is the cable? Are you connecting directly to the batteries, or thru a breaker panel? This inverter can draw 20A.

Before returning the inverter, I'd be very sure that it's getting the power it needs to operate properly. Small wiring, long runs, dirty contacts, low batteries, etc., can combine to drop the actual input voltage to the 10.5 volts or below, at which point the inverter may cut out.

Bill
Reply With Quote Quick reply to this message Share with Facebook
  #18  
Old 08-26-2008
Member
 
Join Date: Apr 2008
Posts: 70
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 7
newpbs is on a distinguished road
What happens if you power up the pc before for connect the inverter?

If it is charging the battery what else do you need?
Reply With Quote Quick reply to this message Share with Facebook
  #19  
Old 08-26-2008
Member
 
Join Date: May 2006
Posts: 33
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
BluewaterBruce is on a distinguished road
Most often, you can buy a 12V cigarette lighter adapter for your laptop, save a lot of juice going from 12v D/C to 120V A/C to 12V D/C or what ever voltage it needs...

Do a search on "car charger hp laptop" I hit a few that would work.
Reply With Quote Quick reply to this message Share with Facebook
  #20  
Old 08-26-2008
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
I am guessing that the Dell uses more power, having a 21" LCD vs. a 15" LCD. The problem is probably a combination of the inverter not putting out very clean AC and the HP being more sensitive to bad power than the Dell.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Installing 700 Watt Inverter Sabreman Gear & Maintenance 20 05-23-2008 11:41 AM


All times are GMT -4. The time now is 01:16 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.