This has GPS built-in so that you can find it if you lose it.
Brad's Deals Editor David,
This GoPlug 110V Smart Power Bank drops from $299 to $169 with free shipping at B&H Photo. This was the best price we found by $130. This 27,000mAh batter pack can provide up to 100W of continuous power (150W of peak power). You can use it to recharge mobile devices as large as a laptop, or power standard 110V outlet devices using a built-in 3-prong wall outlet. Sales tax is charged in most states.