Reply
 
Thread Tools Search this Thread Display Modes
 
Old 12-10-2017, 01:05 PM   #21
Guru
 
psneeld's Avatar
 
City: AICW
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 19,818
Quote:
Originally Posted by ranger42c View Post
Does it take anything special to use two chargers on the same battery bank simultaneously?

I disconnected the ProTech 1240P from our starboard bank when I installed the 2000 PSW inverter/charger for that bank. Partly 'cause I'm not sure the older ProTech is smart enough to deal with one 300Ah bank and a 440Ah bank at the same time with the inverter/charger also on the 440Ah bank...

-Chris
My 2 seem to love each other.

They do just charge the same house bank through the same 12V buss.

The charger usually goes to standby first, then minutes later, the inverter charger.

Even my solar regulator starts signalling the bank is maybe not full but close when the chargers start going into standby.

When the chargers are used independently, the bank voltage takes awhile to pass 14V. with noth on, it usually passes 14V in minutes. Thats with 20 to 25 percent depletion.
__________________
Advertisement

psneeld is online now   Reply With Quote
Old 12-10-2017, 01:08 PM   #22
Guru
 
psneeld's Avatar
 
City: AICW
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 19,818
Quote:
Originally Posted by john61ct View Post
OK sorry, my memory's not good that way.

May be helpful to others who do care though, best to just say "go to float" rather than imply the bank's actually full.
Again, theory and terminology over practical.

I apologize for trying to convey that, but correct in that they arent full, like a working battery bank on a liveaboard ever is....
__________________

psneeld is online now   Reply With Quote
Old 12-10-2017, 01:24 PM   #23
Guru
 
ranger42c's Avatar
 
City: Maryland
Country: USA
Vessel Model: 42' Sportfish
Join Date: Aug 2013
Posts: 4,562
Quote:
Originally Posted by psneeld View Post
My 2 seem to love each other.

They do just charge the same house bank through the same 12V buss.

The charger usually goes to standby first, then minutes later, the inverter charger.

Just hook 'em both up to the battery bank, done deal? No extra charge controllers, etc., necessary?

Our original charger (if I reconnected at one of the charger terminals) would be connected via a wire that goes thru the main battery switch. The 70A inverter/charger is connected directly to the bank (fused, etc.).

All I'd have to do is reconnect that positive lead (that I previously disconnected) at the charger terminal?

If so, the older 40A charger would then be servicing both banks again, and it's not huge for that purpose... but I'm thinking ahead to when I might replace that one with a new 1260P...

The two banks are both AGMs, but with different manufacturer-recommended charging profiles... I guess that'd be an issue for me to ponder on...

Still, seems useful to know the possibilities. Always good for me to have something to ruminate on...

-Chris
__________________
South River, Chesapeake Bay
ranger42c is offline   Reply With Quote
Old 12-10-2017, 01:37 PM   #24
Scraping Paint
 
City: CT
Country: US
Join Date: Mar 2017
Posts: 963
Yes multiple charge sources on one bank are not an issue at all.

Nice if they have similar charge profiles, but NP if they don't.
john61ct is offline   Reply With Quote
Old 12-10-2017, 04:45 PM   #25
Guru
 
BruceK's Avatar
 
Join Date: Oct 2011
Posts: 9,889
The old one is a ferro resonant? Reliable but outdated.
Rule of thumb is(?was) charging amps should be at least 10% of bank size, I don`t think you mentioned bank size. If the selected charger is 20A, I suspect it gets split between the 2 banks, ie it`s not 20A per bank, though I think if bank A is full a smart charger might direct everything to a not yet full bank B. I doubt 20A is enough for most boats.
__________________
BruceK
Island Gypsy 36 Europa "Doriana"
Sydney Australia
BruceK is offline   Reply With Quote
Old 12-13-2017, 05:50 PM   #26
Guru
 
Airstream345's Avatar
 
City: Seattle, WA USA
Country: United States
Vessel Name: FORTITUDE
Vessel Model: Bluewater 40 Pilothouse
Join Date: Jul 2017
Posts: 592
Amazon had the best price and delivered today. I know what my plans are this weekend!
Attached Thumbnails
Click image for larger version

Name:	ChargerUnboxed.jpg
Views:	37
Size:	88.4 KB
ID:	71216  
Airstream345 is online now   Reply With Quote
Old 12-13-2017, 06:03 PM   #27
Scraping Paint
 
City: CT
Country: US
Join Date: Mar 2017
Posts: 963
Bay-marine? Alan's a good guy if you have Q's.
john61ct is offline   Reply With Quote
Old 12-13-2017, 09:17 PM   #28
Guru
 
kchace's Avatar
 
City: Brookline, NH
Country: USA
Vessel Name: Blue Heaven
Vessel Model: Albin 43 classic double cabin, twin 135 Lehmans
Join Date: Sep 2013
Posts: 1,566
Quote:
Originally Posted by Airstream345 View Post
Amazon had the best price and delivered today. I know what my plans are this weekend!
Very nice unit
kchace is offline   Reply With Quote
Old 12-14-2017, 06:20 AM   #29
Guru
 
psneeld's Avatar
 
City: AICW
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 19,818
One of the best I have seen for just the amount of info ights and meters built right into its face.

Plus the price point is right especially with those features. Just hope its longevity matches the real old time ferro resonant style...

On my boat it replaced a less but not much less expensive "modern" unit that had ZERO indicators whether working or not except what the main panel voltage meter showed. POS!!!!
psneeld is online now   Reply With Quote
Old 12-14-2017, 11:26 AM   #30
Guru
 
Heron's Avatar
 
City: Cypress Landing Marina (NC)
Country: USA
Vessel Name: Heron (2)
Vessel Model: '88 Cape Dory 28 Flybridge #115
Join Date: Nov 2014
Posts: 1,300
Quote:
Originally Posted by Airstream345 View Post
Amazon had the best price and delivered today. I know what my plans are this weekend!
Good Choice....Mine's been flawless
__________________
Steve
Heron is offline   Reply With Quote
Old 12-14-2017, 11:40 AM   #31
Guru
 
Airstream345's Avatar
 
City: Seattle, WA USA
Country: United States
Vessel Name: FORTITUDE
Vessel Model: Bluewater 40 Pilothouse
Join Date: Jul 2017
Posts: 592
I'm very happy with the pricing given the features...under $500 for the unit with the Helm Remote
Airstream345 is online now   Reply With Quote
Old 12-14-2017, 03:09 PM   #32
Guru
 
JDCAVE's Avatar
 
City: Lions Bay, BC
Country: Canada
Vessel Name: Phoenix Hunter
Vessel Model: Kadey Krogen 42 (1985)
Join Date: Apr 2011
Posts: 2,220
Quote:
Originally Posted by john61ct View Post
OK sorry, my memory's not good that way.

May be helpful to others who do care though, best to just say "go to float" rather than imply the bank's actually full.

John: my review on the literature supports what you have noted WRT length of time required at float charge. That said itís pretty tough for many of us to meet those requirements when at anchor, event with solar panels.

Jim
JDCAVE is offline   Reply With Quote
Old 12-14-2017, 03:31 PM   #33
Scraping Paint
 
City: CT
Country: US
Join Date: Mar 2017
Posts: 963
Actually it's Absorb hold time, float only after 100% Full.

A genny run in the morning helps.
john61ct is offline   Reply With Quote
Old 12-14-2017, 04:08 PM   #34
Guru
 
psneeld's Avatar
 
City: AICW
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 19,818
And is not needed once the sun comes up and solar kicks in....if lucky enough that solatr is on the same schedule as you are.

Especially if the batteries got a decent recharge at night while at the same time reheating water, watching tv,, cooking dinner, etc like many cruisers versus lab rats do.
psneeld is online now   Reply With Quote
Old 12-15-2017, 09:08 PM   #35
Guru
 
Airstream345's Avatar
 
City: Seattle, WA USA
Country: United States
Vessel Name: FORTITUDE
Vessel Model: Bluewater 40 Pilothouse
Join Date: Jul 2017
Posts: 592
That was easy. Click image for larger version

Name:	IMG_0420.jpg
Views:	35
Size:	104.2 KB
ID:	71259Click image for larger version

Name:	IMG_0421.jpg
Views:	41
Size:	45.9 KB
ID:	71260
__________________
FORTITUDE
Blog: mvfortitude.com
Instagram: @mvfortitude
Facebook: Bluewater 40 Owners Group
Airstream345 is online now   Reply With Quote
Old 12-16-2017, 08:39 AM   #36
Guru
 
kchace's Avatar
 
City: Brookline, NH
Country: USA
Vessel Name: Blue Heaven
Vessel Model: Albin 43 classic double cabin, twin 135 Lehmans
Join Date: Sep 2013
Posts: 1,566
Yup. Great charger.

__________________

kchace is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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





All times are GMT -5. The time now is 04:18 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012
×