hey guys what's up now that the decision-making process is all finished
and I need to start working on getting all of my cells put into packs so I
started thinking I got several different projects I have my power wall and I want
to do an upgrade of my portable power pack my big one and I was wanting to
build some smaller power packs but I'm kind of torn I got too many projects so
I decided that for now because I'm still processing cells for my power wall I'm
gonna let that be I do have cells completed where I can
actually go in and I'm gonna do an upgrade to my portable power pack and
that's what we're gonna get started on started on probably going to be at 2
maybe 3 part series because there's just a lot of work to do so we're just gonna
do it right now so stay tuned
all right so the first part of this is I needed to strip out all of the wiring
and my inverter and get things prepped so I'm going to pull out these three
cell banks these three separate batteries that I've built out of 18 650
cells and we're gonna I'm gonna take those and I'm gonna upgrade them to this
so not exactly like this but what I want to do is actually have three of these in
here and you're looking well that didn't change a whole lot well it
did because these are a lot more cells in comparison to what was in there
each of these banks so I'm gonna have three cell blocks like this instead of
just three like this it's actually twice the cells if you look here if you were
to stack these there's actually two of these in each one of these bricks so
basically I'm doubling the capacity I have more cells now so I can do that
plus I did some checking and my inverter fits all my electronics fit just above
this so there's plenty of room I will need to get some longer straps because I
strap these in so my straps need to be longer but that's not a problem
I can get strapping pretty cheap and from there I just got to work out how
I'm going to wire the whole thing up but we'll get to that in a little bit I'm
going to go ahead and start processing these cells this was just an example
pack and to do that I'm going to be using this stuff here so if I have two
of these so I got one kit here one here and then I'm going to use these other
cells along with this to create my third cell packs all of the three cell packs
that will go back into the case and we will have double the capacity so that
should put me right around for about four kilowatts of power so it's quite a
bit and the reason I'm also doing this you remember in my my question and
answer my question videos I was talking about should I put my
sells all in these packs together you know where we do do them in parallel and
serial so this is going to create I had them at 12 volts these were running
three of these you get 12 volts but I decided to add another to go to 16 one
of the reasons is is because 12 volts was the top into this and I don't want
to drive my cells all the way to the top so I'm going to do this in a 16 volt and
I'll run it up to about 14 volts turns out that my inverter can handle 15
little over 15 15 point 5 volts so this will not have a problem and I will not
overcharge these so they're going to go up to about the the the 15 volt mark 15
5 I think is where I'm going to drive into and then the other thing is is the
devices that hang out the front you know like the USB port and the power ports
these can actually handle up to 24 volts and so this isn't going to be a problem
for this to be able to handle out of the power pack so I'm actually hoping this
will work better I'm thinking it will because of the fact
that it's just so much more efficient to run higher voltage than it is to run
right at you know max volt is 12 volts and I didn't really like that so going
with 4 cell packs in each one of these bricks the other reason I'm doing it
this way as well and I'll happen in groups of 3 is so that at any point in
time I can actually remove one of these and the kit stays running I can you know
my power pack I can still use it it's still a usable device and I can replace
them so if I need to take one of these out for maintenance
I'm not down I have less amperage but I still have a capacity but I still have
the voltage that I need to do what I need and then like I said I can do
maintenance pull them in and out so anyways let's start tearing these down
because the first thing I need to do is I need to start tearing these apart so
that I can put them in large packs like this all right I'm gonna start tearing
apart these cells now Jesus cell blocks so I set this aside we'll just start
just getting first of all I'm going to unsolder
all of my connections off my bus bars I will be reusing my bus bars
well not the bus bars themselves but these in pieces so I can use them on my
new my new cell packs so now I'm gonna go ahead and start disassembling these
I'm gonna put it in time-lapse see you not to sit and watch me the whole time
but it'll go quite a bit faster so here we go start and tear it apart
now I've gotten down to I've got to sell packs that have been the busbar has been
removed I got one more to go so once I get that done then I will continue
shooting on the next step of how I will actually be kind of rehiring these cells
so that I can use them for the new cell packs and kind of intermingle them we'll
have to do some balancing in that so let me finish this cell on this cell pack up
and then we'll start the next step of disassembling these and organizing the
cells all right so now I've gotten my cell packs all pour part and
reintegrated they're actually now in numerical order starting here at cell
one the first cell I ever prospect back in process back in November of 2016
and then they just go in numeric order out these are 500s and four hundred and
three hundreds and so there are sets of hundred and allows me to identify them I
keep my IDs in order so that I can actually use my spreadsheet to track
each cell so I know the volume so this one here this specific cell here is 26
36 milliamp hours and when I run that back into the using the spreadsheet and
I go through reap rat Packer I'll be able to determine how many or what cells
go in each pack so I'm going to need twelve twelve bricks of this size here
in which I'll build these four sections into three separate batteries to give me
three separate batteries of 24 volts or 16 volts and that's about where we're at
is I just had to tear these apart and then get the cells all in numeric order
I got all my pieces and parts here and I have my old strips that disassembled
some pieces of that later alright guys so I finished that piece of it I'm gonna
go to on the cell Packer stuff where I'll
build out the spreadsheets I'll show you some bits and pieces of that in the next
video this one here is getting a little bit
long so I need to do some work on it it's not complete so we're gonna go
ahead and I'll build out the spreadsheet so I'll build out the packs off twelve
packs that will be very consistent and then we'll actually know which cells go
into each pack and then in the next video will actually start assembling
those packs so that they can be used please subscribe below and I also
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