This is the best power bank for laptops. It can deliver up to 300 watts and has three USB-C ports (140W, 65W, 65W) as well as a retractable 2-foot USB-C cable (140W). There's a display that shows handy information like remaining battery life and different charging rates. The power bank can also be topped off from dead to 80 percent full in under half an hour if you plug in both USB-C ports. Even if you don't opt for the absolute fastest recharge speeds, you'll still be able to top it off in about an hour—no more waiting overnight for your power bank to recharge.
// 易错点1：边界处理 - 0辆车返回0，1辆车返回1（无需后续计算）
，这一点在旺商聊官方下载中也有详细论述
# Switch to unrestricted。关于这个话题，safew官方下载提供了深入分析
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