Attracting less attention on Wisteria Lane was Tesla’s Powerwall 2, a major upgrade of its home battery for electricity storage. When the original Powerwall was released last year, I was skeptical. Mostly, it was just too pricey for the amount of power it provided, especially in the U.S. where electricity is cheap and most people can sell their excess solar power back to the grid. Version 2 is a much different product. It packs more than twice the capacity—14 kilowatt hours versus 6.4 kilowatt hours—for a cheaper price after installation. It includes a built-in Tesla-brand inverter and comes with a ten year, infinite-cycle warranty.
No One Saw Tesla’s Solar Roof Coming - Bloomberg
Devices with Quick Charge 4 technology can get up to 5 hours of battery life on a 5-minute charge, says Qualcomm.
Qualcomm can charge your phone faster than you can read this story - CNET
Researchers at the University of Buffalo (Buffalo, NY) have developed a glow-in-the-dark dye that has potential for redox flow batteries for energy storage in the home. In experiments, a battery using a fluorescent dye called BODIPY - boron-dipyrromethene - operated efficiently and with longevity, running well after 100 cycles.
Fluorescent dye holds promise for large-scale rechargeable batteries | Electronics EETimes