What Are You Doing Right Now

MattSpeller

@gjacobse said in What Are You Doing Right Now:

@MattSpeller said in What Are You Doing Right Now:

Sipping coffee and trying to decide how to create a battery pack with 40+ 18650 cells.

Will you be using a BMS or just direct packing them>

BMS of some flavor

My biggest issue at the moment is how to package them. I have crummy old cells and I'd like to have a setup where I can hot swap them in and out when (not if) they fail. The below looks fairly skookum but also looks like a crap ton of soldering and fiddling. Still the best option I've seen. After that I need to figure out how to package the pack physically.

http://www.recumbents.com/wisil/e-bent/18650/Img_1421.jpg

wirestyle22

@stacksofplates said in What Are You Doing Right Now:

@wirestyle22 said in What Are You Doing Right Now:

@scottalanmiller said in What Are You Doing Right Now:

@wirestyle22 /home is required, definitely. But it would not be its own filesystem 90% of the time. Why did it get it's own in the first place is the real question. How did you get into this situation?

I was under the impression that centos-root, centos-home, centos-swap were always there upon installation.

sda1 (boot) is the first partition with sda2 (centos-root, centos-swap, centos-home) being the second.

If the disk is large enough it defaults to its own home directory. I do like having the home directory separate, along with /var. With the home directory on its own you can snapshot the root partition and not have a lot of personal data (that changes a lot) taking up Delta in the snapshot.

I have home as a separate on my laptop but that's because it's on its oen physical disk. I can reinstall and other than apps, I'm back to where I was before.

It's +50GB right? then root defaults everything else into centos-home. I believe this is what JB was talking about with my plex installation.

stacksofplates

@scottalanmiller said in What Are You Doing Right Now:

@stacksofplates said in What Are You Doing Right Now:

@wirestyle22 said in What Are You Doing Right Now:

@scottalanmiller said in What Are You Doing Right Now:

@wirestyle22 /home is required, definitely. But it would not be its own filesystem 90% of the time. Why did it get it's own in the first place is the real question. How did you get into this situation?

I was under the impression that centos-root, centos-home, centos-swap were always there upon installation.

sda1 (boot) is the first partition with sda2 (centos-root, centos-swap, centos-home) being the second.

If the disk is large enough it defaults to its own home directory. I do like having the home directory separate, along with /var. With the home directory on its own you can snapshot the root partition and not have a lot of personal data.

I have home as a separate on my laptop but that's because it's on its oen physical disk. I can reinstall and other than apps, I'm back to where I was before.

I generally either keep home on the same filesystem because it normally holds nothing but keys and maybe some scripts. Or if it is going to have any amount of data on it, automount it over NFS.

I should have made a distinction. For a laptop or personal desktop that's what I do. For servers I don't, but SCAP does have that as a recommendation. So at work I have been doing it also.

stacksofplates

@wirestyle22 said in What Are You Doing Right Now:

@stacksofplates said in What Are You Doing Right Now:

@wirestyle22 said in What Are You Doing Right Now:

@scottalanmiller said in What Are You Doing Right Now:

@wirestyle22 /home is required, definitely. But it would not be its own filesystem 90% of the time. Why did it get it's own in the first place is the real question. How did you get into this situation?

I was under the impression that centos-root, centos-home, centos-swap were always there upon installation.

sda1 (boot) is the first partition with sda2 (centos-root, centos-swap, centos-home) being the second.

If the disk is large enough it defaults to its own home directory. I do like having the home directory separate, along with /var. With the home directory on its own you can snapshot the root partition and not have a lot of personal data (that changes a lot) taking up Delta in the snapshot.

I have home as a separate on my laptop but that's because it's on its oen physical disk. I can reinstall and other than apps, I'm back to where I was before.

It's +50GB right? then root defaults everything else into centos-home. I believe this is what DB was talking about with my plex installation.

That sounds right. I think root is always 50 and then home gets the rest (excluding boot and such).

stacksofplates

Blah. Home sick today.

scottalanmiller

@stacksofplates said in What Are You Doing Right Now:

Blah. Home sick today.

That sucks. Just a cold?

gjacobse

@MattSpeller said in What Are You Doing Right Now:

@gjacobse said in What Are You Doing Right Now:

@MattSpeller said in What Are You Doing Right Now:

Sipping coffee and trying to decide how to create a battery pack with 40+ 18650 cells.

Will you be using a BMS or just direct packing them>

BMS of some flavor

My biggest issue at the moment is how to package them. I have crummy old cells and I'd like to have a setup where I can hot swap them in and out when (not if) they fail. The below looks fairly skookum but also looks like a crap ton of soldering and fiddling. Still the best option I've seen. After that I need to figure out how to package the pack physically.

http://www.recumbents.com/wisil/e-bent/18650/Img_1421.jpg

You could try these maybe. etch out a PCB and then solder on...

http://www.keyelco.com/product.cfm/Thru-Hole-Mount/1049P/product_id/13960

stacksofplates

@scottalanmiller said in What Are You Doing Right Now:

@stacksofplates said in What Are You Doing Right Now:

Blah. Home sick today.

That sucks. Just a cold?

Sadly no. Whatever this 24 hour bug going around is. My whole body aches.

MattSpeller

@gjacobse Same problem as the ones in the picture - if you want to get any real current out of them (high amps) you need to reinforce those little pins. Good call though.

gjacobse

@MattSpeller said in What Are You Doing Right Now:

@gjacobse Same problem as the ones in the picture - if you want to get any real current out of them (high amps) you need to reinforce those little pins. Good call though.

http://www.keyelco.com/product.cfm/Surface-Mount/1048P/product_id/13959

wirestyle22

@MattSpeller Well, skookum is my new favorite word. Thanks Geritol

MattSpeller

@gjacobse said in What Are You Doing Right Now:

@MattSpeller said in What Are You Doing Right Now:

@gjacobse Same problem as the ones in the picture - if you want to get any real current out of them (high amps) you need to reinforce those little pins. Good call though.

http://www.keyelco.com/product.cfm/Surface-Mount/1048P/product_id/13959

Those... might actually do it.

MattSpeller

@wirestyle22 said in What Are You Doing Right Now:

@MattSpeller Well, skookum is my new favorite word. Thanks Geritol

Get yerself some additional proper Canadian slang here. Oh and awesome videos.

https://www.youtube.com/user/arduinoversusevil

RojoLoco

@MattSpeller said in What Are You Doing Right Now:

@wirestyle22 said in What Are You Doing Right Now:

@MattSpeller Well, skookum is my new favorite word. Thanks Geritol

Get yerself some additional proper Canadian slang here. Oh and awesome videos.

https://www.youtube.com/user/arduinoversusevil

I get most of my Canadianisms from "Dicker'd up with Pug". Friggin' rights, bud!

MattSpeller

@gjacobse said in What Are You Doing Right Now:

@MattSpeller said in What Are You Doing Right Now:

@gjacobse Same problem as the ones in the picture - if you want to get any real current out of them (high amps) you need to reinforce those little pins. Good call though.

http://www.keyelco.com/product.cfm/Surface-Mount/1048P/product_id/13959

https://cdn.meme.am/cache/instances/folder500/18794500.jpg

http://www.digikey.ca/products/en?keywords=36-1048P-ND