Portable Generator - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 14 Old 02-23-2009 Thread Starter
S/V Sabbatical
 
Snboard976's Avatar
 
Join Date: Aug 2008
Posts: 111
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
 
Portable Generator

I got great advice in my last post about upgrading my batteries to 3 12 volt wallmart 110 Ah batteries. That leaves me with about $700 to upgrade my charging solution which is currently a 55 amp alternator on the front of my 1976 Westerbeak 40.

Originally I was thinking about wind or solar, but my budget doesn't really seam large enough to make a dent in my power needs (100-150 amps per day) with wind or solar. Last night I found a few portable generators on amazon for under $200 which would leave plenty of money to buy gasoline and maybe even another battery. I know some will recommend buying a honda portable, but at $800 I could buy four chinese knockoffs for the same price.

Is there any problem using a cheapo gasoline generator to charge the house batteries aside from noise and explosion risks?

What would I need to check in the generators specs? Does it need to produce DC current? How many amps would be desirable?

What else would I need to connect a portable generator to charge the house batteries? I imagine it is a little bit more complex than hooking some alligator clips to the batteries.
Snboard976 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 14 Old 02-23-2009
Reward for lost Kraken!
 
hellosailor's Avatar
 
Join Date: Apr 2006
Posts: 11,484
Thanks: 5
Thanked 132 Times in 129 Posts
Rep Power: 11
   
The first problem is that many gensets have a limited run life, they are designed for emergency backup not regular use. The second problem is that a lot of machinery from China is junk--gensets included. Some run loud, some hot, many with small fuel tanks will also run so hot in normal use that you CANNOT refuel them until they've cooled down.

I'd rather buy a cheap parachute than a cheap Chinese genset--or anything else with moving parts.

Then there are exhaust and monoxide problems as well. Great backup for occassional use--not so great for regular use.

I'd look around for a 90-100 amp rated genset (that's all you can run on one v-belt anyway) or look for one wind charger.
hellosailor is offline  
Quote Quick Reply Share with Facebook
post #3 of 14 Old 02-23-2009
Owner, Green Bay Packers
 
Join Date: Sep 2006
Location: SW Michigan
Posts: 10,318
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
       
I got a nice little Yamaha for under $700. Works very well.

“Scientists are people who build the Brooklyn Bridge and then buy it.”
Wm. F. Buckley, Jr.
sailaway21 is offline  
Quote Quick Reply Share with Facebook
post #4 of 14 Old 02-23-2009
Bender of Nails
 
Join Date: Jan 2009
Location: West Coast BC
Posts: 66
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
 
Forget throwing the money at an offshore genny and replace that little alternator with a high-output. WAY more bang for your buck. Your revised budget allows for you to have it installed and then some: probably still enough for that genny if your heart's really set on it....

Get yourself a decent AC charger for when you're on shorepower and you'll be set.

Just my .02

"Verbosity leads to unclear inarticulate things"
~Dan Quayle
Deadeye is offline  
Quote Quick Reply Share with Facebook
post #5 of 14 Old 02-23-2009
Senior Member
 
Join Date: Jul 2008
Location: chesapeake bay
Posts: 1,942
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
 
well the batteries are a good start

as for the genny, i had one, bought it at pep boys for 150. it worked for a while, a good long while, infact it still runs but i think the sea air got to the genny end. the problems are is they are not near as fuel effecent as a honda when it come to gas. it also had much more vibrations than a honda, and was noisier too.

i would look on craigslist for a honda, and you can find em for 700 new if you look ( the 1000I). honestly if you can break the bank and buy some solar. 200 watts will give you about 85 amps a day. just for knowledge 150 watts will give you about 65 amps a day

edit i just read you think you need 100 to 150 amps a day, you need to get some led lights, each 10 watt bulb you replace will give you about 5 amp hours back if you use the light 6 hours a day. also 100 amps a day is a lot. also you need to look at the price for a decent charger, they cost money too, and unless you run what ever genny you get for 10 hours a day a 15 amp one wont cut it. solar saves you from having to buy a big charger

Last edited by scottyt; 02-23-2009 at 11:53 PM.
scottyt is offline  
Quote Quick Reply Share with Facebook
post #6 of 14 Old 02-23-2009
Wandering Aimlessly
 
PBzeer's Avatar
 
Join Date: Nov 2002
Location: Cruising
Posts: 21,091
Thanks: 0
Thanked 92 Times in 89 Posts
Rep Power: 15
     
I'm as miserly as anyone, but I don't have the slightest hesitation about having my Honda generator. It's something where I think you definitely get what you pay for.

John
Ontario 32 - Aria

Free, is the heart, that lives not, in fear.
Full, is the spirit, that thinks not, of falling.
True, is the soul, that hesitates not, to give.
Alive, is the one, that believes, in love.
JCP


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

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PBzeer is offline  
Quote Quick Reply Share with Facebook
post #7 of 14 Old 02-24-2009
Senior Member
 
Join Date: Jul 2008
Location: chesapeake bay
Posts: 1,942
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
 
just a quick look here on craigslist for a honda 2000 I for 550

edit quick google search for used solar panels found this Solar Panels at very low cost, SunElec.com they have a 200 watt "blemished" panel for 600 bucks

if you got the full 85 amps a day based on 6 hours of light then you would be down 15 amps a day at 100 amps useage, so you would have to run a genny every 5 days using 340 amps total battery, or about 150 amps to be at 50 % ( minus never getting a 100 %charge ) discharge and still have about a day to spare

Last edited by scottyt; 02-24-2009 at 12:33 AM.
scottyt is offline  
Quote Quick Reply Share with Facebook
post #8 of 14 Old 02-24-2009
Junior Member
 
Join Date: Jan 2007
Posts: 20
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Look in a used chandlery.... lots of different chargers because there are people out there that have to have the latest. You can pick up a good 250 amp charger for $75- $150. Duo Gen makes a great water/wind generator. A little pricey but if you are under sail it will give you 8 amps at 6 kts, 14 amps at 7 kts and 20 amps at 8 kts if you can go that fast. When you'r in port flip it up out of the water and switch the water propeller to the Wind propeller and you are still generating the power. Stay out of the doldrums!
GeminiDaze is offline  
Quote Quick Reply Share with Facebook
post #9 of 14 Old 02-24-2009
Large Member
 
Join Date: May 2007
Location: Texas
Posts: 1,000
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 9
 
Remember: Chinese = crap. WalMart = crap with waranty.
mdbee is offline  
Quote Quick Reply Share with Facebook
post #10 of 14 Old 02-24-2009
Senior Member
 
Join Date: Aug 2006
Location: wherever
Posts: 5,283
Thanks: 8
Thanked 17 Times in 16 Posts
Rep Power: 11
     
more vibrations and more noise. your choice.
xort is offline  
Quote Quick Reply 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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
portable generator on 30ft sailboat ? Volkhard Gear & Maintenance 28 04-02-2010 11:34 AM
Help costing a generator and lots of generator questions... labatt Gear & Maintenance 10 10-16-2008 01:01 AM
Portable Generator vs Genset dougshipl Gear & Maintenance 109 06-07-2008 12:36 PM
New Portable Generator bushrat Gear & Maintenance 22 04-01-2008 05:20 PM
Generator battery charging..... avazquez Gear & Maintenance 1 09-06-2007 09:19 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome