Do Server Rack Batteries need space between them?

RTL44 · Dec 19, 2022

I will be receiving eight 48V 100A server rack batteries in the next week. I am trying to decide between buying or making my own rack. Do the batteries need space between them for ventilation/dispersion of heat, or will they be good to mount directly adjacent to each other?

Thanks in advance.

Checkthisout · Dec 19, 2022

RTL44 said:
I will be receiving eight 48V 100A server rack batteries in the next week. I am trying to decide between buying or making my own rack. Do the batteries need space between them for ventilation/dispersion of heat, or will they be good to mount directly adjacent to each other?

Thanks in advance.

Good question. I always see them with spacers.

Following

Edit: Thought you meant individual cells.

RTL44 · Dec 19, 2022

Checkthisout said:
Good question. I always see them with spacers.

Following

Edit: Thought you meant individual cells.

I probably should have been more clear. I have rarely seen a setup with the batteries stacked without space. I just want to be sure I get the right size rack for my needs.

timselectric · Dec 20, 2022

Generally an inch between is enough.
If you are pushing them hard enough to make much heat, you don't have enough battery.

JCSchwarb · Dec 20, 2022

I agree with Tim, my racks don’t put out much heat, it is the inverters that need a bit of space.

Koldsimer · Dec 20, 2022

I remember someone who sells them recommending that they can be stacked on top of each other up to three high. More than that and you need a rack. I think it comes down to weight, not ventilation or heat, being the primary concern.

JCSchwarb · Dec 20, 2022

I placed my two racks symmetrically in the space between panels, supply (left), load (right) to reduce the wiring size. All of my main rack 4/0 wiring from server to combiner box (hidden to right of load panel) are the same size.

Benzimidazolone · Jan 17, 2023

RTL44 said:
I will be receiving eight 48V 100A server rack batteries in the next week. I am trying to decide between buying or making my own rack. Do the batteries need space between them for ventilation/dispersion of heat, or will they be good to mount directly adjacent to each other?

Thanks in advance.

I asked that specific question to Current Connected about SOK server rack batteries. Their website states the following

The batteries may be stacked without a rack up to 3 units high. Further stacking poses a crush hazard to the battery on the bottom. When stacking without a rack, it is essential that the batteries be secured in such a fashion that they do not slide off of each other.

Calsun · Jan 17, 2023

If they are lithium batteries I would want a fire alarm and automatic fire extinguisher in place and a way to vent the gases to the outside of the building.

JCSchwarb · Jan 17, 2023

Calsun said:
If they are lithium batteries I would want a fire alarm and automatic fire extinguisher in place and a way to vent the gases to the outside of the building.

Lithium what? Lifepo4 or lithium ion have no outgassing, they are 100% sealed. LFP’s are very safe and when installed properly pose an infinitesimally low fire risk.

Jack Rabbit Off Grid · Jan 17, 2023

JCSchwarb said:
Lithium what? Lifepo4 or lithium ion have no outgassing, they are 100% sealed. LFP’s are very safe and when installed properly pose an infinitesimally low fire risk.

I don’t think they are 100% sealed but sealed enough To mount anyway but upside down. I remember Will mentioning vents on the tops of the cells by the QR code. But massive off gassing like a lead acid no.

Do Server Rack Batteries need space between them?

RTL44

New Member

Checkthisout

Solar Wizard

RTL44

New Member

Attachments

timselectric

If I can do it, you can do it.

JCSchwarb

Solar Enthusiast

Koldsimer

Solar Addict

JCSchwarb

Solar Enthusiast

Attachments

Benzimidazolone

New Member

Calsun

New Member

JCSchwarb

Solar Enthusiast

Jack Rabbit Off Grid

Solar Enthusiast

Similar threads