Free 7 Day Trial RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > RV SYSTEMS AND TECHNOLOGIES FORUMS > Going Green
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 12-01-2021, 09:55 AM   #57
Senior Member
 
Isaac-1's Avatar
 
Join Date: Jun 2016
Location: SW Louisiana
Posts: 6,958
I am familiar with the JBD BMS, my 200 AH Rebel batteries have the 100A version of it with the Bluetooth module. I can understand the roll your own approach, though I opted to buy pre-built drop in batteries, mainly for 2 reasons, I have enough projects that keep getting put on the back burner, and I feel they have a cleaner more professional appearance. My pair of batteries, which total 420AH came to just under $1,500 delivered, but they do have a 5 year warranty, and ReBel battery is based in Lake Jackson, TX so if it comes down to it, I can drive over there in about 4 hours and beat on their door if there is a warranty issue. Something that is harder to do when buying bare cells from a vendor in China.


Ike


p.s. be aware some versions of the JBD app has mistakes like showing the wrong units on certain line items, ie showing amps when reading in tenths of amps, ...
__________________
2002 Safari Trek 2830 on P32 Chassis with 8.1L w/ 400 watts solar 420Ah LiFePo4
2017 Jeep Cherokee Overland & 2007 Toyota Yaris TOADs with Even Brake,
Demco Commander tow bar and Blue Ox / Roadmaster base plates
Isaac-1 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 12-01-2021, 10:13 AM   #58
Senior Member
 
Damon Owners Club
Join Date: Apr 2020
Posts: 2,707
Blog Entries: 3
Quote:
Originally Posted by CJBROWN View Post
Which one did you get Harry?




Yeah, leaning this way. If it's not battleborn then SOK, right???

Would be pretty easy to setup a low-temp on the SCC, but not so much for the converter/charger or DC to DC on startup.

Did you guys update your converter/charger? My IOTA IQ4 was state of the art when it was installed.
Mine were Shunbin, but they apparently not available, at least at this time.
__________________
2006 Damon Daybreak 3276 35'with 5 Star Tuner. 3 200 Amp Lithium batteries and 2000 watt PSW inverter/charger. 2013 Elantra on a Master Tow dolly.
Retired USAF
HarryStone is offline   Reply With Quote
Old 12-01-2021, 10:19 AM   #59
Senior Member
 
RoadTrip2084's Avatar
 
Monaco Owners Club
RV Trip Wizard
Join Date: Sep 2021
Location: Airdrie, AB
Posts: 123
Quote:
Originally Posted by Isaac-1 View Post
I am familiar with the JBD BMS, my 200 AH Rebel batteries have the 100A version of it with the Bluetooth module. I can understand the roll your own approach, though I opted to buy pre-built drop in batteries, mainly for 2 reasons, I have enough projects that keep getting put on the back burner, and I feel they have a cleaner more professional appearance. My pair of batteries, which total 420AH came to just under $1,500 delivered, but they do have a 5 year warranty, and ReBel battery is based in Lake Jackson, TX so if it comes down to it, I can drive over there in about 4 hours and beat on their door if there is a warranty issue. Something that is harder to do when buying bare cells from a vendor in China.


Ike


p.s. be aware some versions of the JBD app has mistakes like showing the wrong units on certain line items, ie showing amps when reading in tenths of amps, ...
Yeah, at that price unless I needed something special that wasn't readily available it quickly becomes diminishing returns for the DIY approach. I predict in another year or so feature-complete and price-competitive off-the-shelf 12v batteries will be so plentiful the DIY approach won't make much sense other than as a fun project.

This battery tech is amazing and only getting drastically less expensive every year.
RoadTrip2084 is offline   Reply With Quote
Old 12-01-2021, 02:43 PM   #60
Senior Member
 
Marine359's Avatar
 
Join Date: May 2021
Location: Asheville, NC
Posts: 540
Quote:
Originally Posted by Isaac-1 View Post
What each person has to decide is where do they choose to strike the balance between cost, build quality, warranty and support. Do you mind buying from a fly by night, no name brand with no contact information in the US for warranty claims, if they even have a warranty. How about the small shop, one man show selling customized batteries, do you prefer a bigger company like Renogy who has been active in the US selling solar panels and other solar accessories for about a decade, or maybe you prefer a dedicated LiFePo4 premium brand with premium level of support and very long warranty like Battleborn, that is somewhere between a one man shop, and a big company.
Buying a battery assembled in the US with a customer service department you can actually talk to on the phone, and a warranty that you’ll have no problem redeeming is comforting to me on something that costs as much as a LiFePo4. There are a few US companies that sell batteries at 30-50% less than Battleborn. I’d never buy a Chinese LiFePo4 online from a company that doesn’t have a customer service phone number. Just me being overly cautious I guess. I’m pleased as punch with my year-ago LiFePo4 purchase from Bigbattery. It’s got a BMS every bit as good as BB, and some features I use regularly that BB doesn’t even offer.
__________________
Jim. 2021 Canyon Denali 4x4 3.6L, Husky C-Line
2021b Micro Mini 2108DS, 170AH LiFePo4, Xantrex XC2000, 110w Solar Suitcase, Champion 2500w df
Marine359 is online now   Reply With Quote
Old 12-01-2021, 04:27 PM   #61
Senior Member
 
Isaac-1's Avatar
 
Join Date: Jun 2016
Location: SW Louisiana
Posts: 6,958
That is part of why I bought mine from ReBel Batteries which sells made in China batteries assembled to their custom specs. If it comes down to it on warranty issues, I can drive to location and beat on the door as they are based in Lake Jackson, TX about a 4 hour drive from my house.
__________________
2002 Safari Trek 2830 on P32 Chassis with 8.1L w/ 400 watts solar 420Ah LiFePo4
2017 Jeep Cherokee Overland & 2007 Toyota Yaris TOADs with Even Brake,
Demco Commander tow bar and Blue Ox / Roadmaster base plates
Isaac-1 is offline   Reply With Quote
Old 12-07-2021, 01:13 PM   #62
Senior Member
 
CJBROWN's Avatar
 
Workhorse Chassis Owner
Join Date: Jul 2006
Location: Orange County CA
Posts: 975
Quote:
Originally Posted by RoadTrip2084 View Post
Good points. For RV usage cold temp charging cutoff seems like a really good idea.

For reference, I'm in the process of building my own 280Ah RV battery. I'm using 4 x "Grade A" EVE LiFePO4 cells with a JBD Smart BMS (200A).

The BMS has Bluetooth + app and is highly configurable, features multiple temperature probes, and even has output to run heater pads automatically if temps drop below the configurable threshold (charge current is used to heat the pads instead of charge the battery until the "warm enough to charge" temp is met on all sensors).

The whole thing will fit inside a standard plastic Group 24 battery box, and is costing me a little under $700.

Of course, it's up to me to assemble, configure, and operate it safely/effectively. If any component fails, it is warrantied but collecting on that warranty is likely a complex and difficult proposition. Not for everyone.
I finally went this route as well. I couldn't find the level of quality assurances warranty and features I wanted for what I wanted to spend.
Will Prowe's DIY solar forum is a wealth of information and help. And they have vendors they've vetted and endorse, so I ordered four of the Eve 230Ah cells from a US warehouse, and a Overkill Solar bms, and I'll build up my own pack. I'll get all the whistles and bells for about 40% less than Battleborn. Plus this way I'll be able to troubleshoot it myself. Great when you can be your own warranty service.

BTW fellas, PowerMax has a new converter/charger unit just out, specifically designed for lifepo4, in 55A and 100A capacities. It's a 2-stage optional with user-set-able voltage levels for charge and float. Just what the doctor ordered for lithium packs. I got mine yesterday, to replace my IOTA with IQ4. It was a fantastic charger for FLA, just not so much for lithium.

With 600W of solar I'm going to see if the combination of that and shorepower/genset with the new charger will keep us in the green, sans updating charging for alternator. Seems Victron Orion is the way to go for this, they're just kind of spendy. No, you can't just connect your lithium pack to your isolator, you're likely to burn up your alternator.

I'm also switching my generator lead over to the chassis battery - it has it's own solar maintainer so it's always full. Worst case you can jump house to chassis.
Isolator/booster is going bye-bye.

Linky: https://powermaxconverters.com/produ...ithium-series/

Friends don't let friends buy Renogy. You ever try to call them for help????

PowerMax PM3-55LKL lithium 2-stage. Yes, the image has the old label/part number.

__________________
Chris & Sherry Brown -
2005 Itasca Sunrise 31W - W20 and 8.1
2021 Chevy Spark Toad
CJBROWN is offline   Reply With Quote
Old 01-03-2022, 07:51 PM   #63
Junior Member
 
Join Date: Jan 2021
Posts: 16
Build your own

I found the easiest and biggest bang for your buck is to build your own packs out of Lifepo4 cells. Then you have insight on how it works and can replace or repair your own batteries at a component level and not rely on a manufacturer in China to warranty your product. Although the raw cells are extremely reliable, I have built over a dozen packs and never saw one fail.



Pre-Built packs cut corners and you don't know what's inside. If you build yourself, you know exactly what you are getting and can size it exactly to your needs.



Here is a video that mentions this stuff.

augie1955 is offline   Reply With Quote
Old 01-04-2022, 09:56 AM   #64
Senior Member
 
CJBROWN's Avatar
 
Workhorse Chassis Owner
Join Date: Jul 2006
Location: Orange County CA
Posts: 975
Quote:
Originally Posted by augie1955 View Post
I found the easiest and biggest bang for your buck is to build your own packs out of Lifepo4 cells. Then you have insight on how it works and can replace or repair your own batteries at a component level and not rely on a manufacturer in China to warranty your product. Although the raw cells are extremely reliable, I have built over a dozen packs and never saw one fail.



Pre-Built packs cut corners and you don't know what's inside. If you build yourself, you know exactly what you are getting and can size it exactly to your needs.



Here is a video that mentions this stuff.


Yeah, that's Will Prowse, he's gained quite the notoriety on all things solar energy. He started a very nice forum with a bunch of really talented members, and lots of noobies wanting to learn. His video series gets millions of views, and he does a ton of product reviews. Very reliable source of information on all things solar and lifepo energy storage.

I found the same thing buying verses building - shopped and researched till I dropped - finally decided to build my own battery pack. The cells arrived yesterday, 4 each of Eve LF230A 3.2V cells to make up in series. Verses my two GC2's I get twice the capacity and half the weight and size with lifepo4. The other big advantage is level voltage output throughout the discharge - no voltage sag like you get with FLA. And no self-discharge, so they don't go dead just sitting.

I did update all of my charge sources - a dc to dc charger from Victron for the alternator, updated the charge profile on my solar controllers, and replaced the 120 to 12V converter/charger as mentioned upthread.

I'll have about a grand in the update, maybe a bit more, but about half of what I initially thought it might cost based on off-the-shelf (OTS) LiFePo4 battery packs (like battleborn).

I would post some pics but this stupid forum still blocks photobucket images.
__________________
Chris & Sherry Brown -
2005 Itasca Sunrise 31W - W20 and 8.1
2021 Chevy Spark Toad
CJBROWN is offline   Reply With Quote
Old 01-04-2022, 10:33 AM   #65
Member
 
Join Date: Jun 2021
Location: Lanesboro, Minnesota, between Fountain and Whalan
Posts: 38
Quote:
Originally Posted by CJBROWN View Post
I would post some pics but this stupid forum still blocks photobucket images.
Are you using the paid version or the free version? My free pictures wouldn't work on forums, that's why it's free, but for personal use only and limited picture size.

Enjoy,

Perry
__________________
Escape 5.0, 2018, F150, 3.5 EB, 6.5' box, crew cab
2 e-ICE trikes in summer, 2 e-Tern Vektron's in winter
465 watts on roof, 100 watt portable, 260 AH Soneil SiO2 batteries
Perryb67 is offline   Reply With Quote
Old 01-04-2022, 10:49 AM   #66
Senior Member
 
CJBROWN's Avatar
 
Workhorse Chassis Owner
Join Date: Jul 2006
Location: Orange County CA
Posts: 975
Quote:
Originally Posted by Perryb67 View Post
Are you using the paid version or the free version? My free pictures wouldn't work on forums, that's why it's free, but for personal use only and limited picture size.

Enjoy,

Perry
I've had a paid account for many years, from before they ended the free program and dumped everybody. Old news. This forum just never caught up.
__________________
Chris & Sherry Brown -
2005 Itasca Sunrise 31W - W20 and 8.1
2021 Chevy Spark Toad
CJBROWN is offline   Reply With Quote
Old 01-04-2022, 01:43 PM   #67
Senior Member
 
Isaac-1's Avatar
 
Join Date: Jun 2016
Location: SW Louisiana
Posts: 6,958
The reason forums block photobucket images is so the archive of message threads don't become useless in a year or two with hundreds of missing images.
__________________
2002 Safari Trek 2830 on P32 Chassis with 8.1L w/ 400 watts solar 420Ah LiFePo4
2017 Jeep Cherokee Overland & 2007 Toyota Yaris TOADs with Even Brake,
Demco Commander tow bar and Blue Ox / Roadmaster base plates
Isaac-1 is offline   Reply With Quote
Old 01-04-2022, 02:10 PM   #68
Senior Member
 
CJBROWN's Avatar
 
Workhorse Chassis Owner
Join Date: Jul 2006
Location: Orange County CA
Posts: 975
Quote:
Originally Posted by Isaac-1 View Post
The reason forums block photobucket images is so the archive of message threads don't become useless in a year or two with hundreds of missing images.
Which is completely false. None of my images have ever been missing. The policy is bogus.
CJBROWN is offline   Reply With Quote
Old 01-04-2022, 03:33 PM   #69
Senior Member
 
Isaac-1's Avatar
 
Join Date: Jun 2016
Location: SW Louisiana
Posts: 6,958
Yours may not, but that is not true for the majority of older threads on most boards where allow photo bucket
__________________
2002 Safari Trek 2830 on P32 Chassis with 8.1L w/ 400 watts solar 420Ah LiFePo4
2017 Jeep Cherokee Overland & 2007 Toyota Yaris TOADs with Even Brake,
Demco Commander tow bar and Blue Ox / Roadmaster base plates
Isaac-1 is offline   Reply With Quote
Old 01-07-2022, 07:45 PM   #70
Senior Member
 
tap4154's Avatar
 
Join Date: Apr 2019
Posts: 1,290
Quote:
Originally Posted by CJBROWN View Post
Which is completely false. None of my images have ever been missing. The policy is bogus.
I stopped using Photobucket years ago when they tried to extort us after allowing us free accounts for so many years. In fact I still get incessant emails from them trying to extort me into paying them or they're going to delete my account, but I don't care because I have all the pictures on other drives anyway.

This forum is great, because you can just directly upload your pictures from your phone or computer. Then next time Photobucket decides to extort its users again, the pictures won't disappear.
tap4154 is offline   Reply With Quote
Reply

Tags
battery, lithium



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Batteries to lithium or not to lithium sciblades RV Systems & Appliances 18 03-21-2021 11:40 PM
Battleborn Battery question TGiboney Electric RVs and EV Charging 1 03-03-2021 10:47 PM
RV Lithium Lite & Lithium Super Upgrade Systems - Mike Mas Idleup iRV2.com General Discussion 10 02-20-2021 05:26 PM
Dog Trying To Get Stranger To Throw A Stick Wayne M Just Conversation 3 06-10-2011 09:12 AM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 01:32 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.