RV.Net Open Roads Forum: Tech Issues: LifePO4 batteries

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > LifePO4 batteries

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 7  
Prev  |  Next
Sponsored By:
theoldwizard1

SE MI

Senior Member

Joined: 09/07/2010

View Profile


Offline
Posted: 10/31/18 06:23pm Link  |  Quote  |  Print  |  Notify Moderator

time2roll wrote:

Full time mostly off-grid... lithium is looking like a good value.

From the "off grid" YouTube channels I watch, NOT ONE use LiFePO4. MASSIVE lead acid battery banks (eight or more GC2 or some othe sized lead-acid) because size and weight are NOT an issue for them. Cost is !

48VDC @ 200Ah+ is a lot of storage capacity. Most off gridders try to not go below 80% SOC.

gmctoyman

Lake Livingston, Texas

Senior Member

Joined: 03/23/2005

View Profile



Posted: 10/31/18 09:16pm Link  |  Quote  |  Print  |  Notify Moderator

Nuff said, even if they are way high on the cost of LA batteries.

Click


Dave W. AKA "Toyman"
KE5GOH - On 146.52
RV's ? What RV's ???
Apache Pop-up
Classic GMC Motorhome
07 Leisure Travel Sprinter
Do Boats Count ?

time2roll

Southern California

Senior Member

Joined: 03/21/2005

View Profile



Good Sam RV Club Member


Posted: 10/31/18 09:42pm Link  |  Quote  |  Print  |  Notify Moderator

theoldwizard1 wrote:

time2roll wrote:

Full time mostly off-grid... lithium is looking like a good value.

From the "off grid" YouTube channels I watch, NOT ONE use LiFePO4. MASSIVE lead acid battery banks (eight or more GC2 or some othe sized lead-acid) because size and weight are NOT an issue for them. Cost is !

48VDC @ 200Ah+ is a lot of storage capacity. Most off gridders try to not go below 80% SOC.
OK and I see plenty on YouTube with drop in batteries, used Tesla batteries, used LEAF batteries, home made BMS, home made heating system, and all kinds of high tech.


2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back up

azrving

Oatman

Senior Member

Joined: 05/17/2013

View Profile



Posted: 10/31/18 10:20pm Link  |  Quote  |  Print  |  Notify Moderator

.

* This post was edited 10/31/18 10:34pm by azrving *

mchero

Henniker, NH

Senior Member

Joined: 11/09/2004

View Profile



Good Sam RV Club Member

Offline
Posted: 11/01/18 03:52am Link  |  Quote  |  Print  |  Notify Moderator

MASSIVE = cost in my books. Especially if we are talking FLA batteries. I have seen some mighty pricey battery banks RUN FLAT in many diesel coaches I worked on in Quartzsite AZ.
Owners wondering why the house batteries are not holding charge like they should. Cost to most is not an issue.


Robert McHenry
Currently, Henniker NH
07 Fleetwood Discovery 39V
1K Solar
2005 Jeep Grand Cherokee
Prior:1993 Pace Arrow 37' Diesel

MEXICOWANDERER

las peñas, michoacan, mexico

Senior Member

Joined: 06/01/2007

View Profile


Offline
Posted: 11/01/18 02:20pm Link  |  Quote  |  Print  |  Notify Moderator

I can see it now department.

Spending five thousand dollars on lithium

Only to have

"Brand new battery technology! No discharge or charge limits. Battery can remain at 0% charged for months with no degradation. No intracell management system needed. Can tolerate charging limit to 16 volts without damage. Costs twice as much as lithium but 100% guaranteed for 20 years. Operates and charges effectively at -40F -40c

mchero

Henniker, NH

Senior Member

Joined: 11/09/2004

View Profile



Good Sam RV Club Member

Offline
Posted: 11/01/18 05:51pm Link  |  Quote  |  Print  |  Notify Moderator

MEXICOWANDERER wrote:

I can see it now department.

Spending five thousand dollars on lithium

Only to have

"Brand new battery technology! No discharge or charge limits. Battery can remain at 0% charged for months with no degradation. No intracell management system needed. Can tolerate charging limit to 16 volts without damage. Costs twice as much as lithium but 100% guaranteed for 20 years. Operates and charges effectively at -40F -40c


Five Thousand Dollars? Where are you getting those numbers? You have got some reading to do.

2 Battle Borne 100Ah 12V GC2 LiFePO4 Deep Cycle Battery at 1,049.00 each and one Xantrex Freedom XC 2000 watt true sine wave inverter/charger at 569.00 equals 2,667.00.
FAR from Five Thousand.

I'd say prices are indeed dropping!

MrWizard

Traveling

Moderator

Joined: 06/27/2004

View Profile



Posted: 11/01/18 06:01pm Link  |  Quote  |  Print  |  Notify Moderator

you missed it..

NOT talking lithium

making speculative advert for battery tech replacing lithium


Radiate The Happy
....

Connected using Verizon and AT&T
1997 F53 Bounder 36s


mchero

Henniker, NH

Senior Member

Joined: 11/09/2004

View Profile



Good Sam RV Club Member

Offline
Posted: 11/01/18 06:22pm Link  |  Quote  |  Print  |  Notify Moderator

MrWizard wrote:

you missed it..

NOT talking lithium

making speculative advert for battery tech replacing lithium


Oh, sorry, I read "Spending five thousand dollars on lithium"



My Xantrex Freedom 458's FLA charge setting will NOT fully charge my Interstate house batteries. BUT the Xantrex Freedom XC has a programmable, configurable 3 stage temperature compensated battery charge algorithm!

A great first step towards a iithium house battery setup!

MEXICOWANDERER

las peñas, michoacan, mexico

Senior Member

Joined: 06/01/2007

View Profile


Offline
Posted: 11/01/18 09:16pm Link  |  Quote  |  Print  |  Notify Moderator

Just about the time arrives for "affordable lithium" and the tree I am feeding grows ten feet, there will arrive new batteries. The chances of having twenty or thirty astonishing superior promising technologies prove fruitless is quite small in my estimation.

500 usable amp hours is not huge. A 1,800 square ft. home would need 50 times that to be basically outfitted. With induction stove and space heating it would have to be 500 times that A 40 ton A/C unit requires how many kWh over 24 hours, you say?

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 7  
Prev  |  Next

Open Roads Forum  >  Tech Issues

 > LifePO4 batteries
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2019 CWI, Inc. © 2019 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS