Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 12-11-2007, 06:23   #1
Senior Cruiser
 
JusDreaming's Avatar

Cruisers Forum Supporter

Join Date: Jul 2004
Location: Stuart, FL & Bahamas Cruising
Boat: Lagoon 37
Posts: 880
Images: 13
generator charging circuit

I need advice on how to build a charging circuit on our generator. I had a bridge retifier on it to convert ac to dc but the voltage is to high for charging, (battery blew it's caps off this morning)!!!!!!!!! It is on it's own battery for a back up if I drain the house/start batteries, I have the gen. to run the charger and get everything going again.
One thought was to run a trickle charger into it anytime the generator is running. But it charging itself seems to be a better choice I think
__________________

__________________
Denny and Diane
Lagoon 37
http://www.svjusdreaming.bravehost.com/
http://www.sailblogs.com/member/svjusdreaming/
"The only way to get a good crew is to marry one." -Eric Hiscock
JusDreaming is offline   Reply With Quote
Old 12-11-2007, 07:10   #2
Registered User
 
Sunspot Baby's Avatar

Join Date: May 2003
Location: New Bern, NC
Boat: Prout Manta 38' Catamaran - Sunspot Baby
Posts: 1,521
Images: 14
Denny, I assume you are referring to the dedicated start battery for the genset. If so, I have mine isolated from all other batteries so that if everything else goes dead, I still have a fresh start battery on the genset and can get everything charged up again. I have that dedicated start battery on an eco charger to keep it topped up when other batteries are charging whether with engines, genset, or shore power. It has worked very well for my.

George
__________________

__________________
She took my address and my name
Put my credit to shame
Sunspot Baby, sure had a real good time
Bob Seger
Sunspot Baby is offline   Reply With Quote
Old 12-11-2007, 07:19   #3
Senior Cruiser
 
JusDreaming's Avatar

Cruisers Forum Supporter

Join Date: Jul 2004
Location: Stuart, FL & Bahamas Cruising
Boat: Lagoon 37
Posts: 880
Images: 13
George can you explain eco charger! Is it basiccally the same as a trickle charger?
__________________
Denny and Diane
Lagoon 37
http://www.svjusdreaming.bravehost.com/
http://www.sailblogs.com/member/svjusdreaming/
"The only way to get a good crew is to marry one." -Eric Hiscock
JusDreaming is offline   Reply With Quote
Old 12-11-2007, 07:48   #4
Senior Cruiser

Cruisers Forum Supporter

Join Date: Jul 2006
Location: Chesapeake Region and Maine
Boat: 42' Bob Perry sloop
Posts: 4,038
Images: 4
Denny,

No, it's not a trickle charger.

An EchoCharge is a specialized device (currently built by Xantrex) which is used to keep a starting battery topped off. It works by sensing a charge on the house batteries. Whenever the voltage goes above about 12.8VDC, it bleeds off some of the charging current from the house batteries (up to 15A maximum) and uses that to charge the starting battery. It will not overcharge the battery and can be left online all the time. I've had one installed for several years and love it.

Here's a brief description: EchoCharge

They cost about $100, and are well worth it.

By the way, they work with ANY charging source: generator, shore-powered battery charger, engine alternator, solar panels, wind generator, etc. All they care about is sensing a charge on the house batteries. When the house battery voltage drops below about 12.8, they disconnect until the next time a charging voltage is put on the house batteries.

Bill
__________________
btrayfors is offline   Reply With Quote
Old 12-11-2007, 08:09   #5
Registered User

Join Date: Jan 2007
Posts: 497
Images: 1
I have an Echo-charger and it works great, problem is that it is non-adjustable for battery types. I am charging an AGM starting battery and a flooded lead acid battery bank, the profiles are close but not exact. Plus I think it just relies on internal battery resistance to reduce the charge rate, it is billed as a charge follower by Xantrex. So far I haven't killed anything and all the batteries test fine.

I believe that Balmar's Digital Duo charge does the same function but it is more advanced, you can set the battery type you are charging and get a specific charge profile. But as with more advanced, it is more $$ too.
__________________
jdoe71 is offline   Reply With Quote
Reply

Tags
generator

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Generator battery charging question? avazquez Electrical: Batteries, Generators & Solar 4 10-09-2007 07:47
Circuit Breakers DP 30A New EngNate Classifieds Archive 3 29-07-2007 08:06
parallel a circuit breaker skyking2 Electrical: Batteries, Generators & Solar 13 03-11-2006 23:00
Electrical Panels/ Circuit Breakers CaptainK Marine Electronics 12 14-05-2006 21:29
charging relay for generator battery jerry f Electrical: Batteries, Generators & Solar 2 06-07-2005 05:05



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 18:46.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.