Battery connection

[wingnut771]

Top Tip:

BALANCE all the batteries first, connect all in parallel and leave them to balance for a day.

 

[wingnut771]

I hope that is Lead acid and not LiFePO4's?

Cause 99% of the 100 AH LiFePO4 BMS cant do 2 x 3/Serial x Parallel

The Hubble s-100 can.

 

[AlphaJohn]

The Hubble s-100 can.

Hubble can do 2s x 2p or 4s x 2p last time I checked?

 

[wingnut771]

Hubble can do 2s x 2p or 4s x 2p last time I checked?

You're just limited to 100A.

 

[AlphaJohn]

View attachment 1176908
You're just limited to 100A.

TY, Must have mixed em up with Mercer ones.

 

[TheChamp]

View attachment 1176908
You're just limited to 100A.

What does this mean in regards to 12 and 24V parallel banks? I am slightly confused because they are only talking about 48V parallel configuration.

 

[RonSwanson]

The Hubble s-100 can.

Dude who is The Hubble Ambassador here? You're gonna get @The_Troubler confused if you are going to carry on like this.

 

[wingnut771]

What does this mean in regards to 12 and 24V parallel banks? I am slightly confused because they are only talking about 48V parallel configuration.

I would say still 100A.
12V = 1200W
24V = 2400W
48V = 4800W

 

[TheChamp]

I would say still 100A.
12V = 1200W
24V = 2400W
48V = 4800W
View attachment 1177056

I mean the connection, does it allow you 16 in parallel for 12V as well as 16 in 2*8 for 24V?

 

[wingnut771]

I mean the connection, does it allow you 16 in parallel for 12V as well as 16 in 2*8 for 24V?

It's not clear, but I would work on that logic.

 

[RonSwanson]

I would say still 100A.
12V = 1200W
24V = 2400W
48V = 4800W
View attachment 1177056

The S-100 is a 1C 100Ah lithium battery designed to be a drop in replacement for existing Lead Acid or Gel batteries.
The S-100 has a integrated BMS inside the battery container, which also contain the prismatic lithium cells.
The S-100 can be connected up to 4 times in series maximum. You can configure the batteries in 12V, 24V, 36V or 48V in series.


It is important to note that there are two versions of this battery:
• The older Hubble S-100 (with serial # prefixes starting with DS) can be configured in series or parallel, but not both simultaneously. This means that one or more older Hubble S100s can be configured:
o Series: 1, 2, 3 or 4 batteries; OR
o Parallel: Up to 15 batteries only in 12V configuration.
• The newer Hubble S-100 batteries (with serial # prefixes starting with HL) can be configured up to 4 batteries in series with 4 batteries in parallel.
o This means that a bank of 16 batteries can be configured at 48V, with a maximum discharge and charge rate of 400A and 200A respectively

Edit : Though I see yours is from the official Hubble datasheet, so it may be more correct.

 

[wingnut771]

Edit : Though I see yours is from the official Hubble datasheet, so it may be more correct.

Maybe they just mean series is 100A, then you can still parallel. So 16 x 12V can do 1600A. I would like to see those cables.

 

[RonSwanson]

Maybe they just mean series is 100A, then you can still parallel. So 16 x 12V can do 1600A. I would like to see those cables.

That would be interesting, that's probably why they state "4 in series maximum".

 

[Anton654]

Great stuff, thanks everyone.

 

[Pineapple Smurf]

I hope that is Lead acid and not LiFePO4's?

Cause 99% of the 100 AH LiFePO4 BMS cant do 2 x 3/Serial x Parallel

Good point, I just assumed he was using lead acids coz fancy people love dropping the lithium word in their posts when they have lekker batteries.
ex. Hi, how would I go about connecting 6 100ah 12v LITHIUM batteries to a 3kva 24v inverter, is it possible?

 

[Pineapple Smurf]

Hubble can do 2s x 2p or 4s x 2p last time I checked?

Yeah check with the Manufacturer as not all lithiums are the same, some can do more or less in parallel and in series.

 

[wingnut771]

That would be interesting, that's probably why they state "4 in series maximum".

Yeah, I don't get that series maximum. Surely the BMS only cares about the cells inside one unit, so you could add 8 to make 96V surely or does the BMS detect the final string voltage?

I would guess it goes something like this?

48V
4S1P=100A (4.8kW)
4S2P=200A (9.6kW)
4S3P=300A (14.4kW)
4S4P=400A (19.2kW)

24V
2S1P=100A (2.4kW)
2S2P=200A (4.8kW)
2S3P=300A (7.2kW)
2S4P=400A (9.6kW)