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Glubux's Powerwall (2016)

(secondlifestorage.com)
386 points bentobean | 1 comments | 01 Apr 25 15:49 UTC | HN request time: 0.238s | source
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ianferrel ◴[01 Apr 25 17:00 UTC] No.43549073[source]▶
>the solution came with rearranging and adjusting the cells to ensure the packs worked more efficiently.

>Glubux even began disassembling entire laptop batteries, removing individual cells and organizing them into custom racks. This task, which likely required a great deal of manual labor and technical knowledge, was key to making the system work effectively and sustainably.

This kind of thing is cool as a passion project, but it really just highlights how efficient the modern supply chain is. If you have the skills of a professional electrician, you too can spend hundreds of hours building a home battery system you could just buy for $20k, but is less reliable.

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supportengineer ◴[01 Apr 25 17:10 UTC] No.43549197[source]▶
There HAS to be a way to automate this process and make it work at scale.
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Workaccount2 ◴[01 Apr 25 17:38 UTC] No.43549521[source]▶
There is a lot of liability in sticking your name on a hodge podge of random used lithium cells.
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dheera ◴[01 Apr 25 19:38 UTC] No.43550600[source]▶
I feel like for home battery backup there needs to be some kind of lower energy density solution that has zero fire risk.

Weight is not a factor for home energy storage, there is no need for lithium cells.

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tinbucket ◴[01 Apr 25 19:58 UTC] No.43550743[source]▶
Weight is not a factor for home energy storage, there is no need for lithium cells.

That depends on your living situation. I live in a third-floor apartment, so weight is very definitely a factor.

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1. dheera ◴[01 Apr 25 21:06 UTC] No.43551341[source]▶
The apartment building can have unified power backup in its foundation/basement.

If you reduce the energy density by a factor of 10, the weight for power backup needs will still be far lighter than the concrete.