The HotSync cradle handles the recharge and a spare battery might also come in handy.

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So my favorite gadget is the spare battery.

FORBES: Spare Batteries

As for the Z10, Heins says it will have about one day of battery life, but the battery will be removable so you can add a spare one.

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My ancient cell phone's gas gauge is similarly overoptimistic, and as its aging battery holds less charge than ever, the extra-big spare keeps me connected.

FORBES: Spare Batteries

The laser works everywhere, all the time, quickly and on every course, and the battery last a really long time, but I keep a tiny spare in my bag.

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