solar trickle chargers - 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? 
  #1  
Old 03-17-2011
Kiltmadoc's Avatar
Senior Member
 
Join Date: Nov 2009
Location: Danvers, ma
Posts: 279
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 5
Kiltmadoc is on a distinguished road
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.
Reply With Quote Share with Facebook
  #2  
Old 03-17-2011
MacGyverRI's Avatar
Senior Member
 
Join Date: Nov 2007
Location: East Providence, R.I.
Posts: 360
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 7
MacGyverRI is on a distinguished road
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.
Reply With Quote Share with Facebook
  #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: 7
scottyt is on a distinguished road
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.
Reply With Quote Share with Facebook
Reply


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
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


All times are GMT -4. The time now is 05:04 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.