←back to thread

Glubux's Powerwall (2016)

(secondlifestorage.com)
386 points bentobean | 1 comments | | HN request time: 0.199s | source
Show context
ianferrel ◴[] 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.

replies(6): >>43549197 #>>43549208 #>>43550703 #>>43551134 #>>43551753 #>>43562271 #
supportengineer ◴[] No.43549197[source]
There HAS to be a way to automate this process and make it work at scale.
replies(11): >>43549383 #>>43549397 #>>43549447 #>>43549497 #>>43549521 #>>43549609 #>>43549625 #>>43549952 #>>43550129 #>>43550429 #>>43551649 #
Workaccount2 ◴[] No.43549521[source]
There is a lot of liability in sticking your name on a hodge podge of random used lithium cells.
replies(1): >>43550600 #
dheera ◴[] 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.

replies(5): >>43550743 #>>43550749 #>>43550835 #>>43550856 #>>43554679 #
1. ianburrell ◴[] No.43550835[source]
Currently, that is LiFePO4. It is cheaper than LiPo packs used in electronics, half the energy density, twice as many charge cycles, and doesn't burst into flame. The lithium is flammable but requires external ignition.

Larger batteries, including some electric cars, have switched.