Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 30-04-2017, 23:28   #1
Registered User
 
daletournier's Avatar

Join Date: Jan 2012
Location: Seychelles
Boat: Catalina 470
Posts: 3,758
Carbon foam agm's

Anyone using these? or know anything about them? Thoughts?
__________________

daletournier is offline   Reply With Quote
Old 01-05-2017, 07:56   #2
Registered User

Join Date: Jan 2017
Posts: 12,146
Re: Carbon foam agm's

If you mean Firefly Oasis, yes great product, google for Nigel Calder and Maine Sail's test results, confirming 80% cycling and easy capacity recovery from PSOC abuse.

Not very deep & wide user experience yet, some still skeptical of longevity.

Maybe pricey at $500 per 100AH, and only available in G31, but many consider a way to get some LFP benefits while sticking to familiar lead.

NA distribution well supported through ​Bruce Schwab's Ocean Planet, IMO buy from authorized resellers only.
__________________

john61ct is online now   Reply With Quote
Old 04-05-2017, 01:06   #3
Registered User

Join Date: Feb 2012
Location: Ballard, WA
Boat: Hunter 326
Posts: 12
Re: Carbon foam agm's

PacificNW Boater has been running them on their liveaboard for close to two years now. I can't find the blog of their most recent update (they still love them), but this review video they made a year ago does a good job describing their experience.

http://www.pacificnwboater.com/chann...n-foam-battery
MrSteve007 is offline   Reply With Quote
Old 04-05-2017, 08:55   #4
Senior Cruiser

Cruisers Forum Supporter

Join Date: Mar 2014
Location: Anacortes
Boat: previous - Whitby 42 new - Goldenwave 44
Posts: 1,786
Re: Carbon foam agm's

Do a google search, under the forum search, for Firefly Oasis and you'll find lots of comments, mostly all favorable. They weren't right for me in my circumstances but they look very good for others.
exMaggieDrum is offline   Reply With Quote
Old 04-05-2017, 13:11   #5
Registered User
 
admiralslater's Avatar

Join Date: Sep 2014
Location: Toronto summer rest somewhere else
Boat: Outremer 45/pdq36
Posts: 1,071
Re: Carbon foam agm's

We put five on our Outremer and just finished our second season with them. So far they are working well . we run an isotherm fridge , keel cooled deep freeze and an engle in the cockpit for Drinks . We seem to use about 100 amps per day(is this the correct way to state usage) with 600 watts of solar this just about balances . On a couple of occasions I used 200 amps and could not recover by the next cycle . I use the amp counter on my link 10 to get a rough idea of were I am . I have not yet done the discharge recharge cycle . Happy so far .
I had some minor seepage from a couple of caps and they sent replacements very quickly
admiralslater is offline   Reply With Quote
Old 04-05-2017, 13:19   #6
Registered User
 
epiic's Avatar

Join Date: Mar 2016
Location: Ottawa, Canada
Boat: Jeanneau 409
Posts: 246
Re: Carbon foam agm's

I have 7 of the Firefly Oasis batteries and absolutely love them!

They are very fast to recharge.
Attached Thumbnails
Click image for larger version

Name:	battery-wired.jpg
Views:	312
Size:	402.4 KB
ID:	147079   Click image for larger version

Name:	inverter-solar copy.jpg
Views:	268
Size:	353.4 KB
ID:	147080  

__________________
2015 Jeanneau Sun Odyssey 409 - 3 Cabin / 2 Head, Shoal Keel, Furling Main, Performance Genoa 135% with Tracks, Folding Prop, Bow Thruster, Air Conditioning, B&G Zeus2 Chartplotter, B&G Autopilot, B&G 4G Radar, B&G ForwardScan Sonar.
epiic is offline   Reply With Quote
Old 04-05-2017, 13:52   #7
Registered User
 
admiralslater's Avatar

Join Date: Sep 2014
Location: Toronto summer rest somewhere else
Boat: Outremer 45/pdq36
Posts: 1,071
Re: Carbon foam agm's

Quote:
Originally Posted by epiic View Post
I have 7 of the Firefly Oasis batteries and absolutely love them!

They are very fast to recharge.
beautiful set up
admiralslater is offline   Reply With Quote
Old 04-05-2017, 15:38   #8
Registered User

Join Date: Oct 2009
Location: Out cruising/ St. Augustine
Boat: Bruckmann 50
Posts: 721
Re: Carbon foam agm's

I have 7 as well and love them. Not having to worry about how far you discharge or how long they stay low and then being able to take the entire output of my 200 amp alternator makes it very convenient. The thing I am still working on is adding more charging from the generator but I am sold until LiPo packages come a little more accessible.

Jim
jkleins is offline   Reply With Quote
Old 04-05-2017, 16:31   #9
Registered User
 
daletournier's Avatar

Join Date: Jan 2012
Location: Seychelles
Boat: Catalina 470
Posts: 3,758
Re: Carbon foam agm's

This is all very encouraging. I like the idea due to ease of not needing to do anything special with charging system.
daletournier is offline   Reply With Quote
Old 04-05-2017, 19:02   #10
Registered User
 
epiic's Avatar

Join Date: Mar 2016
Location: Ottawa, Canada
Boat: Jeanneau 409
Posts: 246
Re: Carbon foam agm's

Quote:
Originally Posted by daletournier View Post
This is all very encouraging. I like the idea due to ease of not needing to do anything special with charging system.
I was going to go Lithium but when I learned what a PITA it was to switch over, I decided to go carbon foam.

The only downfall in my opinion is the voltage dips more when something like a microwave is being powered. Obviously Lithium would handle heavy loads much easier but when the higher loads stop, the voltage recovers pretty quick.
__________________
2015 Jeanneau Sun Odyssey 409 - 3 Cabin / 2 Head, Shoal Keel, Furling Main, Performance Genoa 135% with Tracks, Folding Prop, Bow Thruster, Air Conditioning, B&G Zeus2 Chartplotter, B&G Autopilot, B&G 4G Radar, B&G ForwardScan Sonar.
epiic is offline   Reply With Quote
Old 04-05-2017, 19:06   #11
Registered User

Join Date: Jan 2017
Posts: 12,146
Re: Carbon foam agm's

Quote:
Originally Posted by admiralslater View Post
We seem to use about 100 amps per day(is this the correct way to state usage?)
Thanks for that report.

Amps is the rate of flow, real-time snapshot, constantly varies, like gallons-per-minute.

Amp-hours (AH) is the measure of static quantity or capacity.

I would check with Bruce, but personally would do the recovery-charges procedure on a regular basis (monthly to quarterly) whenever PSOC may be a problem.

I would only refrain if I were consistently hitting 100% say 80-90% of the time.

May be less required where only drawing down <25% as you are.
john61ct is online now   Reply With Quote
Old 04-05-2017, 20:18   #12
Registered User
 
admiralslater's Avatar

Join Date: Sep 2014
Location: Toronto summer rest somewhere else
Boat: Outremer 45/pdq36
Posts: 1,071
Re: Carbon foam agm's

Quote:
Originally Posted by john61ct View Post
Thanks for that report.

Amps is the rate of flow, real-time snapshot, constantly varies, like gallons-per-minute.

Amp-hours (AH) is the measure of static quantity or capacity.

I would check with Bruce, but personally would do the recovery-charges procedure on a regular basis (monthly to quarterly) whenever PSOC may be a problem.

I would only refrain if I were consistently hitting 100% say 80-90% of the time.

May be less required where only drawing down <25% as you are.
I had a two eek period of not getting above 85%charged due to snotty weather in Dominica but most of the time i got higher than 95 %.
admiralslater is offline   Reply With Quote
Old 04-05-2017, 21:23   #13
Registered User

Join Date: Jan 2017
Posts: 12,146
Re: Carbon foam agm's

Yah, doncha hate that snotty weather?

8-)
john61ct is online now   Reply With Quote
Old 04-05-2017, 22:06   #14
Registered User
 
admiralslater's Avatar

Join Date: Sep 2014
Location: Toronto summer rest somewhere else
Boat: Outremer 45/pdq36
Posts: 1,071
Re: Carbon foam agm's

Quote:
Originally Posted by john61ct View Post
Yah, doncha hate that snotty weather?

8-)
Not high jacking the thread but the weather is following me. 2 to 3 inches of rain by tomorrow night ground is saturated and Lake Ontario is 18 higher than normal and due to go an other half foot. Launch is Sunday with flurries forcast
admiralslater is offline   Reply With Quote
Old 05-05-2017, 07:38   #15
Senior Cruiser

Cruisers Forum Supporter

Join Date: Mar 2014
Location: Anacortes
Boat: previous - Whitby 42 new - Goldenwave 44
Posts: 1,786
Re: Carbon foam agm's

epiic - totally beautiful installation!!

The issue with carbon foam agm, from what I have read not by experience, is that they still need to be taken up to full charge (99+%) on a frequent basis otherwise they will gradually lose capacity just like a regular agm will. For the short term you wouldn't notice. So if you are only replacing the same amp-hours you take out every day you are not fully charging them that last 10%, and the last 10% takes more charge time at the same rate than the previous 20% (or so), just like regular agm's. If your solar can provide the oomph to do this once a week you are good. But take this with a grain of salt as I said.
__________________

exMaggieDrum is offline   Reply With Quote
Reply

Tags
agm

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Firefly Oasis Carbon Foam AGM Batteries epiic Electrical: Batteries, Generators & Solar 94 25-12-2018 10:23
LiFePo or Carbon Foam AGM missourisailor Electrical: Batteries, Generators & Solar 65 17-12-2015 17:11
Firefly Carbon Foam AGM batteries? hellosailor Electrical: Batteries, Generators & Solar 1 29-08-2015 17:09
To Foam or Not To Foam OldRover Construction, Maintenance & Refit 17 05-04-2012 00:57
Foam or no Foam? Drexel Engineer Construction, Maintenance & Refit 8 25-05-2007 18:15

Advertise Here


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:12.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×

ShowCase vBulletin Plugins by Drive Thru Online, Inc.