The first time I found an AC wall outlet under my seat on an airplane, I realized that I could use my MacBook Pro with its wall charger for hours, even if I’d partially discharged the battery before boarding. Later, when I rode a bus with an AC outlet onboard, the freedom to enjoy my laptop for hours made the long trip feel brief. But I’ve had far more trips without AC outlets than with them, and there have been plenty of times when my MacBook could really have used a recharge mid-trip.

That’s why I’m genuinely excited about ChargeTech’s ChargeAll Portable Power Outlet ($150-$200), which primarily exists to give you access to an AC outlet literally anywhere you might be — something that I can’t believe has taken so long to become available. There are two versions, one with 12,000mAh of power, and the other with 18,000mAh of power, either with enough energy to keep your MacBook going for hours on the road. Both units have the overcharge and short circuit protection you’d expect from a surge board — the difference is that you can toss them into a bag or a car…

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