New Custom 48V LiFePO4 Battery Build

Learn how to build your own LiFePO4 battery here: geni.us/DIY-LiFePO4
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Welcome to our channel! We’re excited to get into this with you guys and share some of our journey and knowledge of custom Offgrid Power Solutions.
In this video, we're building a new custom 48V LiFePO4 battery for a customer to install into a boat. We are getting a number of these requests from customers for unique batteries to put into boats and various applications. We love being able to provide these custom offgrid power solutions for people to take their vehicle to the next level.
If you’re building an electrical system and need help, get in touch: geni.us/offgrid-contact
If you're not sure where to start with your Offgrid Power set-up, book a consult call with us: geni.us/offgrid-consult
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#offgridpower #vanlife #solarpower

[@Alexisz998]

Hello, I love the look of that battery ! The only thing holding me back of making a lifepo4 battery DIY was to have to pack it in a wood case, wich doesn't look really good to me. Where did you found that metallic case ?!

[@matthewknight5641]

Great to see a battery like this of usable size. So many people build small batteries

[@offgrid_power]

☺️☺️☺️

[@Ontgecheap777]

A link for the case you used ? Nice build

[@zixiage]

I am a battery supplier, we also can make the battery pack, but your ways is good ❤

[@offgrid_power]

Thanks

[@andriyatamaniv9419]

Where I can buy such a box?

[@shakkarmusic]

Great video! It'd be very useful to post a link to the site where one could get the case. If you would not mind sharing?

[@borabora339]

Hi, thank you for taking time to share with us non experts, your videos are very informative and useful, can i ask please what switch /circuit breaker you used to be able to safely switch off the battery pack ? Kind regards.

[@SJY.Energy]

Great video! We are a battery facture from china. We believe our battery cells can be a great addition to the battery assembly projects showcased on your channel, and we are interested in discussing a potential collaboration with you.

[@offgrid_power]

Sure, you can send us some samples and we'll test them and make videos. You can find out address on our website.

[@larsmojo]

I enjoy your videos - it would be nice to see some thermal images on how the battery pack perform under load. Thinking of the FlirOne or Seek cameras solutions. Weak links would light up - its a nice tool to further improve the quality of the battery pack.

[@offgrid_power]

Thanks for the suggestion! We did some temp tests on another battery recently, which you can see here: kzbin.info/www/bejne/d5DMpJyLqtamjZY But we didn't get round to doing it on this big 48v battery sadly.

[@chrislewis9345]

Do you know if the daly or any bms will communicate with growatt 5000es?

[@electronpower2758]

Good video. It's not about the time but resistance. I think BMS scans and measures the voltage with really low current flowing so the length of the lead doesn't matter. What you think guys. Am I correct?

[@ericklein5097]

I know the JK BMS throws a fit if any of your balance leads have high resistance but I think the threshold is quite high. Its to prevent loose connections. The resistance theory could lend some credibility to high amperage balancers....but 80ma is nothing. Now 5A or 10A...yeah the small wire gauge they use for those (about 18AWG) would create serious voltage drop.

[@igorkvachun3572]

Yes akb LiFePo4. 🔋 ⚡ 💡 👍

[@offgrid_power]

:)

[@naymin2566]

Where did you buy those items from? Please point me to a reliable place.

[@markymarc37]

I like what I see. Problem is you dont explain the BMS connection thoroughly. I have a Daly 48V 250A 16S Smart BMS. I have connected sample leads correctly, I think. They test good with multi meter. So, B- connects to main negative, thats clear. P- connection is less clear. I have 250 amp breaker as well. Do I connect P- with breaker in line to postive on battery?

[@offgrid_power]

The P- goes to your negative bus bar that you connect the negative lines from your chargers & loads. You SHOULD NOT connect the P- to positive on your battery otherwise you create a dead short. Here is a video that we made that covers the battery build in more detail: kzbin.info/www/bejne/Y4vblHqZap6AbJIsi=4wHVPwTeWm-BUS9l

[@jianchen690]

What is the function of the small button on the Bluetooth receiver?

[@restfulplace3273]

Parts list. Please publish a parts list

[@davidkettell6236]

Where did you get the case? Aliexpress ?

[@davidkettell6236]

no answer ,go figure ,this channel s a complete waste of time.

[@lennymiller7336]

If you’re going to have a channel on KZbin it would be nice if you answered the viewers questions.

[@eelbatteryofficial]

I was wondering if you would be interested in testing our EEL battery box？

[@galen__]

I do enjoy watching your videos and have gained knowledge of batteries and BMS topics that other channels haven’t gone into much detail about, or made me pay attention and think; I want to understand this, it’s important to know how this fits into the bigger picture so I make the right choices for my own or others use case.

[@galen__]

With that said. While I understand the very cold weather conditions where you record can be difficult as it is. Please, when editing, mute the audio of coughs and throat clearing whenever possible, especially in the first few minutes. This is something I think would help to keep new viewers watching your videos and subscribe for more 👍

[@LancashireProClean]

@@galen__ see off grid garage for testing of batteries and BMS

[@CadeBrazil]

Why 3 positives and 1 negative? I recommend JK BMS to balance properly the batteries…

[@offgrid_power]

Yep, JK make great BMS!

[@LancashireProClean]

The daly on its own will never balance those cells

[@zxrjimmy1]

2 things I would do different, 1, drill and tap busbars for balance leads, it's away cleaner looking 2, use different bms, not daly

[@justusmuller802]

Why would you ever use Daly?

[@offgrid_power]

This video was a few years ago and the customer specifically asked for a Daly BMS.