"For roughly the price of Apple's most meme worthy add on, you can buy a brick that quietly solves the most common charging headaches. No extra cables to pack, no hunting for outlets in crowded airports, no arguing over the one free plug at a conference. Just a single charger that covers most of the devices you actually carry. The polishing cloth may be softer. The value proposition is not."
"You get a Lightning cable and a USB C cable permanently attached to the bank itself, plus a separate USB C port and USB A port on the side. So you can charge an iPhone, an Android phone, and something like a tablet or a laptop all at once without carrying a single extra cord. The 30 watt output means you can actually fast charge modern phones or keep a thin laptop limping along during a long meeting."
"The 20,000 mAh capacity is enough to fully charge a MacBook Air once with a bit left over, or get about three to four full phone charges depending on your device. Real world usable capacity will be closer to 13,000 or 14,000 mAh after conversion losses, but that is normal for every power bank on the market. You are still looking at multiple days of phone backup or one solid laptop rescue."
The TESSAN 20,000 mAh power bank includes built-in Lightning and USB C cables plus a side USB C port and a USB A port, enabling simultaneous charging of multiple devices without extra cords. The 30 watt USB C output supports fast charging for modern phones and can keep thin laptops limping through long meetings; TESSAN reports an iPhone 15 Pro can reach 53 percent in 30 minutes. Nominal capacity provides roughly three to four phone charges or a single MacBook Air charge, with real-world usable capacity closer to 13,000–14,000 mAh after conversion losses. The unit fits under most airline carry limits and delivers multi-day phone backup.
Read at Yanko Design - Modern Industrial Design News
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