Nickel is an essential component for the cathodes of many secondary battery designs, including Li-ion, as seen in the table below. Nickel is an essential component for the cathodes of many secondary battery designs. Do you need nickel to make … Continue reading →

Current MacBook airs use a 35 Watt power supply, whereas MacBook Pros use a 60 W power supply. Does MacBook Pro and Air use the same charger? Yes you can use your MacBook Pro’s adapter with your MacBook Air but … Continue reading →

Anyone purchasing a new 16-inch Macbook Pro will get a 140W USB-C charger plus the 2-meter USB-C to MagSafe 3 cable. Does the new MacBook come with MagSafe? Apple’s ‘in the box’ section of the new MacBook’s website confirms that … Continue reading →

The Apple USB-C Charge Cable is longer (2m) and also supports charging, but data-transfer speed is limited to 480Mbps (USB 2.0) and it doesn’t support video. The Apple Thunderbolt 3 (USB-C) cable has Thunderbolt logo on the sleeve of each … Continue reading →

How much does Arri Alexa cost? The ARRI ALEXA LF body only starts at $98,200 USD, going up as soon as you want to start adding things like capture drives and memory cards. For the more compact ALEXA Mini LF, … Continue reading →

Alexa does not actively record and store all your conversations, but it’s always listening for “Alexa,” the wake word. Can you spy on someone with Alexa? You cannot use Alexa to spy on someone. The only theoretical way is by … Continue reading →

24mm x 36mm. A full-frame camera has a sensor the size of a 35mm film camera (24mm x 36mm). How many inches is a full-frame sensor? “Full-frame 35mm” sensor (36 x 24 mm) is a standard for comparison, with a … Continue reading →

There are IMAX format movies which uses aspect ratio of 16:9 or 19:10 which are different compared to normal copy of the movie, since it covers the whole screen of your TV. You can get IMAX version of movies either … Continue reading →

The Varta AA have a consistent performance, slightly better capacity than the Duracell ProCell I had been using (U.S. made), and there have been no duds in a brand new box as I encountered with China-made ProCell and Energizer Industrial. … Continue reading →

The group sizes are standardized by the Battery Council International, who provide each battery’s dimensions in both inches and millimeters. The group numbers are generally two digits and may be followed by a letter. 24F, for instance, is a common … Continue reading →

QuantumScape projects as one of those mega-winners. But it won’t be alone, and in fact, it won’t be the biggest winner. Rather, that title is reserved for a tiny, completely unheard-of solid state battery maker whose stock is trading for … Continue reading →

Comparing lithium-ion batteries vs lithium polymer batteries, Lithium-ion batteries tend to last longer than most of the other battery types. They can last for about two to three years or maybe even more, or about 300-500 charge cycles. Which battery … Continue reading →

63.9lbs. Reliable and Durable Renogy Deep Cycle AGM Battery 12 Volt 100Ah Renogy 12V 100AH Deep Cycle Hybrid Gel Battery Storage Temperature 5°F~104°F / -15°C~40°C -4℉~140℉ Connection Method Parallel+Series Parallel+Series Weight 63.9lbs 63.9lbs Dimension 13.1 x 6.9 x 8.6 inch … Continue reading →

Current prices of rare earths Commodity Specification Price in USD Neodymium metal 99% min EXW China 63878-64604 Neodymium metal 99% min FOB China 64.0-65.0 Neodymium oxides 99.5% min EXW China 48054-48780 Neodymium oxides 99.5% min FOB China 48500-49500 What is … Continue reading →

The graphene aluminum-ion battery cells from the Brisbane-based Graphene Manufacturing Group (GMG) are claimed to charge up to 60 times faster than the best lithium-ion cells and hold three time the energy of the best aluminum-based cells. What battery technology … Continue reading →