WorldwideDave
Solar Enthusiast
I was looking at a he differences between 100 amp hour and larger 200 amp hour batteries. Will tire one open and it seems that a few things make a battery have more capacity:
The individual cells and
The number of cells.
For example one battery can have 4 cells, each 25 amp hours, for 100 amp hours wired in series, another battery can have larger cells for more amp hours, and I saw one with 8 cells inside hat was a 200 amp hour battery. I think when it’s a 200 amp hour battery it is 4 in series, 2 strings in parallel, keeping it 12.8v but doubling the 100amp hours by 2 is 200 amp hours.
The BMS most likely needs to support that I would think.
Reason I am asking and might be confused is because I want a huge 12v battery at a low cost. Like 400 amp hours for under 600 bucks. I can buy some of the 150 dollar 100amp hour batteries and wire them in parallel for under 600. Wondering of other options out there. Seems the 200 and 280 Ah batteries are abundant but not cheap.
Is doing two 200 ah batteries in parallel better than doing four 100 ah batteries in parallel?
Thanks. Just learning.
The individual cells and
The number of cells.
For example one battery can have 4 cells, each 25 amp hours, for 100 amp hours wired in series, another battery can have larger cells for more amp hours, and I saw one with 8 cells inside hat was a 200 amp hour battery. I think when it’s a 200 amp hour battery it is 4 in series, 2 strings in parallel, keeping it 12.8v but doubling the 100amp hours by 2 is 200 amp hours.
The BMS most likely needs to support that I would think.
Reason I am asking and might be confused is because I want a huge 12v battery at a low cost. Like 400 amp hours for under 600 bucks. I can buy some of the 150 dollar 100amp hour batteries and wire them in parallel for under 600. Wondering of other options out there. Seems the 200 and 280 Ah batteries are abundant but not cheap.
Is doing two 200 ah batteries in parallel better than doing four 100 ah batteries in parallel?
Thanks. Just learning.