solar trickle chargers - SailNet Community
 
LinkBack Thread Tools
post #1 of 3 Old 03-17-2011 Thread Starter
Senior Member
 
Kiltmadoc's Avatar
 
Join Date: Nov 2009
Location: Danvers, ma
Posts: 279
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 6
 
solar trickle chargers

Any suggestions from anyone? I saw one at west marine the other day that was about $25 and had alligator clips to attach to the battery terminals. We have a boat that is largely for weekend day trips and gets left on the mooring on weekends, so we just need a top-off during the week.
Kiltmadoc is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 3 Old 03-17-2011
Senior Member
 
MacGyverRI's Avatar
 
Join Date: Nov 2007
Location: East Providence, R.I.
Posts: 360
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 8
 
Those small units don't do much, usually 1/4-1/2 amp at best.

You need at least a 15-20 watt panel (1.1-1.5 amps) per avg. size (Group 27/31) battery for it to be somewhat effective.

You also need a Blocking Diode (some panels come with that) so it doesn't discharge at night.

I have the Harbor Freight 45 watt kit and it's marginal w/ a 4D battery. I really need another kit to be very effective along w/ my 125 watt Wind Turbine.

Ken, East Prov., R.I. Bootlegger, PY26 Paceship

If you like my posts, or they were helpful, please click the "scales" icon on top right to add Rep points.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
MacGyverRI is offline  
Quote Quick Reply Share with Facebook
post #3 of 3 Old 03-17-2011
Senior Member
 
Join Date: Jul 2008
Location: chesapeake bay
Posts: 1,942
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
 
its simple if just keeping charged you need about 10 watts per 100 amps of battery. if you need to charge the battery after use you need about 25 to 25 watts per 100 amps, which will charge the battery over a week.

if you go over the 10 watts per 100 amps you need a charge controller.
scottyt 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
Sunforce trickle charger fordo Gear & Maintenance 1 05-24-2010 05:54 AM
Trickle charger brak Gear & Maintenance 30 10-18-2008 12:02 PM
Solar battery chargers Izzy1414 Gear & Maintenance 11 04-07-2008 12:59 AM
Solar Trickle Chargers bmelchionda Gear & Maintenance 2 12-10-2006 02:02 PM
solar power trickle charge bmcald Gear & Maintenance 14 02-20-2003 04:09 PM

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