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MakeitPowerwall
#1
Hello friends,
Iam new here.
I like the forum that is why I joined.
I am working on a powerwall project called MakeitPowerwall. Presently, there are 1040 pieces of lithium batteries with average capacity of 1,500mAh
Presently total power is 5.772 kwh
My projection is 2240 pieces of lithium batteries with average capacity of 1500mAh and total power will be 12.432kwh.
Details will be shown soon.
jdeadman likes this post
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#2
Welcome! Feel free to add a few pictures to show what you're working on Smile
Fully-Tested 2001-2200mAh Cells, $1.35 each!
^ Use coupon code "powerwalls" on checkout for a 10% discount!
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#3
Thanks  Smile
I will post some of the pictures.
Let me post the available ones now.
Korishan likes this post
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#4
Pretty good overall. Just a tip: work on your solder joints a bit more before soldering the production cells. You have a lot of cold solder balls on the tops of those cells. If that's the iron you're using, I would recommend getting an 80W or 100W iron with a larger tip. That will help out a lot in soldering quickly and cleanly
Proceed with caution. Knowledge is Power! Literally! Cool 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
Certified 18650 Cell Reclamation Technician

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#5
(10-16-2018, 12:31 AM)Korishan Wrote: Pretty good overall. Just a tip: work on your solder joints a bit more before soldering the production cells. You have a lot of cold solder balls on the tops of those cells. If that's the iron you're using, I would recommend getting an 80W or 100W iron with a larger tip. That will help out a lot in soldering quickly and cleanly

Agreed. It also pays to use good quality solder. Some solder is terrible. I had some once that wouldn't even stick to the tip on my iron!
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#6
(10-16-2018, 01:07 AM)Geek Wrote:
(10-16-2018, 12:31 AM)Korishan Wrote: Pretty good overall. Just a tip: work on your solder joints a bit more before soldering the production cells. You have a lot of cold solder balls on the tops of those cells. If that's the iron you're using, I would recommend getting an 80W or 100W iron with a larger tip. That will help out a lot in soldering quickly and cleanly

Agreed. It also pays to use good quality solder. Some solder is terrible. I had some once that wouldn't even stick to the tip on my iron!

Ok thanks
I will try and change my iron to a bigger one like 100w i think that will do it better.
At the same time I will look into the solder issue. I will find a better typy to work with the 100w iron.

Ok thanks 
I will try and change my iron to a bigger one like 100w i think that will do it better.
At the same time I will look into the solder issue. I will find a better typy to work with the 100w iron.

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#7
Hello all,
I want to know the best bms that can handle large current and affordable.
I have heard of Batrium bms and it's very popular here. Is there any alternative to it.
Thanks.
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#8
Rec bms is an equivalent option...
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#9
Rec bms?
Tell me more info about it.
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#10
Have a look here: http://www.rec-bms.com/
Running off solar, DIY & electronics fan :-)
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