When Infoage took the large donation from Verizon 12 years ago, one of the items was an unused central office backup battery in a 4 foot square wood crate. On the top of the crate was a glass jug with many gallons of sulfuric acid to flood the cell. The weight of the thing nearly tipped the forklift. On Mon, Nov 4, 2024, 3:28 PM Neil Cherry via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
On 11/4/24 15:07, Dave McGuire via vcf-midatlantic wrote:
Uhh...theres a 48V battery bank, usually in a battery room, sometimes
containing hundreds of batteries, as what amounts to a UPS. Not exactly the same thing. ;) There is so much energy stored in those rooms that there are rules for tool tethering, etc. Every so often you'll see an area of a wall or rack that has a thin metal plating on it, the remains of a wrench that got dropped and was immediately vaporized.
A 5ESS, even a small installation, is a many-hundreds-of-amps
proposition.
I don't think he's every seen a CO 2V battery. ;-)
I couldn't find photos that looked like the units had in the labs. They were huge, kind of scared me.
-- Linux Home Automation Neil Cherry kd2zrq@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies KD2ZRQ