Wanderlodge Owners Group  
BuyByeBlueBird.com
Donate

Go Back   Wanderlodge Owners Group > Mechanic's Corner > 'Bird Projects & Modifications

'Bird Projects & Modifications Share with us that latest project or modification that you have done to your 'Bird right here.

Site Search:
Reply
 
Thread Tools
  #11  
Old 05-21-2018
MRPutz's Avatar
MRPutz MRPutz is offline
Burnin Up in Az. :-)
 
Join Date: Apr 2008
Location: Mesa
Posts: 4,070
Default

Quote:
Originally Posted by 79Ranger View Post
So.....I have ordered 4 Matrix 440 amp/hr L16 AGM units. I will happily draw them down to 80% DOD.

Given the total number of cycles I will put them through over 7 to 10 years will come nowhere close to what they are rated for.
A little flaw in your logic. AGMs are lead acid batteries. Instead of lead plates and acid it's a glass mat and acid. Bottom line is the technology is the same and if you take them down more than 50% you will not see 7-10 years.
__________________
Michael & Tami Putz
78FC35SB Wanderlodge - "Putz'n Around"
'90 GL1500 Goldwing | '67 VW Rail | '82 CJ5 Jeep
eMail=Mike.Putz@cox.net | Web=http://mikeputz.com/
Solar = https://www.solarpenny.com/SearchResults.asp?Cat=257

FMCA #236459, Good Sam #17270530, Vintage Birds #1509

Last edited by MRPutz; 05-21-2018 at 07:29 PM.
Reply With Quote
  #12  
Old 05-21-2018
79Ranger 79Ranger is offline
Redneck quadder
 
Join Date: Oct 2014
Location: Westlock
Posts: 256
Default

Quote:
Originally Posted by irmagoo View Post
I installed 6 rolls 550-l16 last year - could have got by with 4 but wife and I both are not to good at power conservation... I can say we dry camped a lot over the past 12 months and even with aquahot running all nite no problems always had power in the morning I would run genny a couple hours in the morning and all was well..
good luck with your projects
mike
Good to hear and thanks

Quote:
Originally Posted by rtpn60 View Post
A little flow in your logic. AGMs are lead acid batteries. Instead of lead plates and acid it's a glass mat and acid. Bottom line is the technology is the same and if you take them down more than 50% you will not see 7-10 years.
You don't say about composition. Given how many years I have been doing off grid etc. I will stand by this.

Funny, my last set of Lifelines lasted just under 8 years at about 70% ish.

You might perhaps wish to have a look at the graphs and charts companies like Rolls supply.

In any case, thanks for the input.
__________________
Duncan
Alberta
1988 XXV 40WB
Reply With Quote
  #13  
Old 05-21-2018
MRPutz's Avatar
MRPutz MRPutz is offline
Burnin Up in Az. :-)
 
Join Date: Apr 2008
Location: Mesa
Posts: 4,070
Default

Quote:
Originally Posted by 79Ranger View Post
Good to hear and thanks



You don't say about composition. Given how many years I have been doing off grid etc. I will stand by this.

Funny, my last set of Lifelines lasted just under 8 years at about 70% ish.

You might perhaps wish to have a look at the graphs and charts companies like Rolls supply.

In any case, thanks for the input.
Those are one of the best batteries out there. But you will get longer life keeping them above 50% DOD. Here's their own statement from page 30 of their Rolls Batter Manual PDF:

With traditional off-grid Renewable Energy systems, DOD is set to operate
between 20% and 50% to maximize the life of the batteries. Battery-based
systems are designed to allow a maximum 50% DOD as this offers a balance
between capacity vs. cycle life
, also taking into consideration the cost
of replacement.

For grid-connected backup systems, Installers will typically design battery
banks to operate to a greater DOD percentage to lower initial installation costs.

Cycling with grid-connected systems is significantly less frequent than with
off-grid, where this may occur daily, a lower DOD is acceptable as long as the customer understands that the overall cycle life is affected
__________________
Michael & Tami Putz
78FC35SB Wanderlodge - "Putz'n Around"
'90 GL1500 Goldwing | '67 VW Rail | '82 CJ5 Jeep
eMail=Mike.Putz@cox.net | Web=http://mikeputz.com/
Solar = https://www.solarpenny.com/SearchResults.asp?Cat=257

FMCA #236459, Good Sam #17270530, Vintage Birds #1509
Reply With Quote
  #14  
Old 05-21-2018
79Ranger 79Ranger is offline
Redneck quadder
 
Join Date: Oct 2014
Location: Westlock
Posts: 256
Default

I agree 100% with that Mike.

However this is specific for my own personal application. As I mentioned I might see 20 nights per year out.

So out of those 20 nights, there will be anything from zero to 80% DOD.

So lets's say we get rained out and sit around the campfire for 2 days and I don't want to hear the genny....that might see them get down that far.

Using the Rolls numbers, on the 460 battery, an 80% DOD will allow for about 700 cycles...so even if I took them down to that number for half the time I am out, that (assuming 8 years) would result in 80 cycles.

I'm fine with that.

Also, so you know....I have been an electrician 30 years and was doing solar back in the BP/Shell solar days so I have had a good amount of experience in seeing what works and what doesn't.
__________________
Duncan
Alberta
1988 XXV 40WB
Reply With Quote
  #15  
Old 05-21-2018
MRPutz's Avatar
MRPutz MRPutz is offline
Burnin Up in Az. :-)
 
Join Date: Apr 2008
Location: Mesa
Posts: 4,070
Default

:-)
__________________
Michael & Tami Putz
78FC35SB Wanderlodge - "Putz'n Around"
'90 GL1500 Goldwing | '67 VW Rail | '82 CJ5 Jeep
eMail=Mike.Putz@cox.net | Web=http://mikeputz.com/
Solar = https://www.solarpenny.com/SearchResults.asp?Cat=257

FMCA #236459, Good Sam #17270530, Vintage Birds #1509
Reply With Quote
  #16  
Old 05-21-2018
79Ranger 79Ranger is offline
Redneck quadder
 
Join Date: Oct 2014
Location: Westlock
Posts: 256
Default

Cheers!
__________________
Duncan
Alberta
1988 XXV 40WB
Reply With Quote
  #17  
Old 06-10-2018
79Ranger 79Ranger is offline
Redneck quadder
 
Join Date: Oct 2014
Location: Westlock
Posts: 256
Default

Removed the battery tray today. Will be using some 3x3 or 4x4 1/4 angle to mount the new batteries.


























Blue Sea bus bars





__________________
Duncan
Alberta
1988 XXV 40WB
Reply With Quote
  #18  
Old 06-23-2018
79Ranger 79Ranger is offline
Redneck quadder
 
Join Date: Oct 2014
Location: Westlock
Posts: 256
Default

Did a bit more work today, instead of trying to make cables/lugs between the switch etc. I opted for a piece of copper bus bar.


I will use some liquid tin to slow down oxidation and self vulcanizing rubber tape to insulate the exposed portions.


Will mount everything to a 10 gauge (1/8'') plate, the felt pen marks are the size of the plate, which got a bit larger as I layed things out.





























__________________
Duncan
Alberta
1988 XXV 40WB
Reply With Quote
  #19  
Old 06-23-2018
MRPutz's Avatar
MRPutz MRPutz is offline
Burnin Up in Az. :-)
 
Join Date: Apr 2008
Location: Mesa
Posts: 4,070
Default

Very nice Duncan!
__________________
Michael & Tami Putz
78FC35SB Wanderlodge - "Putz'n Around"
'90 GL1500 Goldwing | '67 VW Rail | '82 CJ5 Jeep
eMail=Mike.Putz@cox.net | Web=http://mikeputz.com/
Solar = https://www.solarpenny.com/SearchResults.asp?Cat=257

FMCA #236459, Good Sam #17270530, Vintage Birds #1509
Reply With Quote
  #20  
Old 06-23-2018
79Ranger 79Ranger is offline
Redneck quadder
 
Join Date: Oct 2014
Location: Westlock
Posts: 256
Default

Thanks Mike!

Been number crunching the voltage drop vs cable size. Looking at trying to relocate the inverter without seeing any location really viable.

Pricing some 500 mcm cable as I really don't want to screw around with parallel runs.
__________________
Duncan
Alberta
1988 XXV 40WB
Reply With Quote
Reply

Bookmarks

Thread Tools

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Solar Penny - High Voltage Solar Systems MRPutz RV Products Review 96 02-24-2019 01:24 PM
24 volt solar panel for 12 volt battery bank 1derer Electrical 4 05-28-2014 10:47 AM
House battery upgrade Turbokitty 'Bird Projects & Modifications 21 11-04-2011 12:36 PM
Solar/Battery bank/toad trailer Trawlercap 'Bird Projects & Modifications 4 02-28-2011 02:55 AM
Coach Upgrade Continues - Solar Panels JerryKessler 'Bird Projects & Modifications 53 04-23-2010 01:13 PM

Web Search:

All times are GMT -4. The time now is 05:09 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.