Hi guys,
i guess most of us do have a lot of batteries left that are not total useless, but they are also to bad to put into a power wall.
I am talking about batteries in the range of 1700-1300 mAh.
The reason we don't use them is because building the pack takes a long time.
Why don't we build the pack so that we can exchange every single cell, without destroying the whole pack?
All we need todo is touse on one sinde the common 18650 holder and on the other side slightly bigger holes so that we can pull the batteries thru. On this side we use for each cell a spring. The springs are on the coverand we do the fuses and the busbar on the backside of the cover.
This way we just need to open our cover and which some or all cells, and fix some broken fuses.
With this design it's worth to burn thru also the not sooo good cells.
So why is nobodey doing it like this? Where is the weakpoint of designing it this way?
i guess most of us do have a lot of batteries left that are not total useless, but they are also to bad to put into a power wall.
I am talking about batteries in the range of 1700-1300 mAh.
The reason we don't use them is because building the pack takes a long time.
Why don't we build the pack so that we can exchange every single cell, without destroying the whole pack?
All we need todo is touse on one sinde the common 18650 holder and on the other side slightly bigger holes so that we can pull the batteries thru. On this side we use for each cell a spring. The springs are on the coverand we do the fuses and the busbar on the backside of the cover.
This way we just need to open our cover and which some or all cells, and fix some broken fuses.
With this design it's worth to burn thru also the not sooo good cells.
So why is nobodey doing it like this? Where is the weakpoint of designing it this way?