This forum actually enlarged my horizon, and i found there are so many solar geeks here. Thanks to Will Prowse, you really do a great job.
i come from China, and has been working in Li-ion industry for more than 10 years, here i found many friends are looking for Li-ion battery to DIY the...
@Fish Freak and all,
it took me some time to do home work on the BMS of 12V/24V and what has been used in the current most recommended battery. And i finally know where i should go. for those BMS you suggest and used mostly in this forum, are from China in fact. and the pros and cons are coming...
you know, he has been there more than 8 years. and really contribute much to SAE standards by also taking CATL up to the equivalent level, veteran in EV automobile area.
You could also offer smaller prebuilt packs with a built in BMS.
i think i will first provide something in this way, since my battery requires laser welding. within these days i will go to my factory and discuss with my team. it won't be difficult.
i will make 12V100Ah and 12V280Ah first, what...
@Fish Freak Hi, Guys, just released, in factory mode. suppose i still make it as i promised it will be ready at mid of June.
anyone interested in, pls drop me the message, and more details will share with you :).
Cheers
@Fish Freak, that is the reason i post a thread here :), now the bottleneck is not the product itself, and in my review there should not be customer defined in large or small, anyone who interested your products should be taken in a fair way. the only thing bothers me is the logistic issue...
@Gazoo ya, Bluetooth could be an add-on option, i will add it in, probably, in ver. 2.0 :)
hooked in series is fine, the tricky part is in parallel mode due to non-balancing issue which should be controlled by BMS.
the BMS used in this forum mostly is should be called as protecting board, it...
Yes, I will make the complete solution, preorder may come very quickly, will you be interested in :)?
The best in class battery with the reliable BMS, And an affordable price. no kidding :)
0.5 P you can simply understand it at 0.5 C (140A for this case).
For grid-scale ESS the life-span of LFP battery normally is at least 4000 cycles at 100% DoD. for CATL battery, a long-life span LFP battery will run more than 10k cycles and lasting 15 years. That's why the US company named...
HI, Guys, just update here,
I just use laser welding to do the bundling (6 pcs in series 19.2V as required from one of my customer, showing here as a demo), as you can see, this is 100Ah CATL LFP battery, i leave major positive and negative ports for handy connecting.
i also leave a Nickel...
Hi, everyone, i just come up with this forums and very excited to see many of solar geeks here.
i just post a thread, pls check. wish i can bring you some more useful info and products.
Cheers
https://diysolarforum.com/threads/does-anyone-need-premium-li-ion-battery-to-diy-your-solar-system.7396/
i repost my thread here again, if anything improper, pls let me know.
https://diysolarforum.com/threads/does-anyone-need-premium-li-ion-battery-to-diy-their-solar-system.7396/
Why don't you try some premium battery from China, pls check my post:
https://diysolarforum.com/threads/does-anyone-need-premium-li-ion-battery-to-diy-their-solar-system.7396/
And for datasheet of CATL LFP 280Ah, pls check:
https://www.notion.so/CATL_280Ah_Cell-383e8dcebec34a41bc50765828c2de3d
@Gazoo just put my stuff up there, and what BMS are you suggesting? i do not know much about it for small system as mostly using here, since i developed mine own and use it in Large ESS system, which would be costly.
your suggestion may enlighten me to find you much better BMS for this...
thanks for the info. i just do a quick calculation, getting 12 V battery by using LFP cell with capacity of 280Ah, you will get 4*3.2 V*280 Ah=3584 Wh, approx. 3.5 kWh. By taking the spec. from the data sheet, for each cell the weight is 5.34 kg. in this case 4 cells are used in series, and then...
@Gazoo Thanks bro. Ya, i was a bit at sea when seeing so many here would like build their own packs, reflecting the spirit of DIY in one way or the other. But i have to say, be very careful as Li-ion battery is not like a AA, AAA or Lead-acid battery. Lithium is the most active element of metal...
200 A, for battery it is quite ok. but i am wondering what kind of protecting board (BMS) have been used to allow 200 A? any idea here what is used by other ones. pls let me know and i need to double check.
@Fish Freak @Gazoo @JoeHam @NEWYORKHILLBILLY Hi Bros, what an intensive discussion have been raised. I made some wrap-up in order to move forward correctly.
1. a stud welding on top of positive and negative port: let me check if i can come up with better idea to give more option for DIYer. but...
i put my partial spec here for reference, the final one would be slightly different. i am coming up with the final product.
Really busy recently :)
Cheers
@JoeHam Just push them to contact with you :)
My bad, as i was a bit overwhelmed recently and take it for granted that my team will contact you after i give them the info.
Cheers
If you are looking for 48V system, you may take a glance at Power Lite Series powered by CATL LFP 100 Ah battery. With TUV certificate by complying IEC 62619 and IEC-EMC 61000 standards. May i know what inverter you are using, and see if Power Lite has compatible test with it or not. The...