Our favorite slim MagSafe power bank is down to a new low price

Carrying around charging cables, adapters or even a bulky power bank defeats the purpose of traveling light. But now there are plenty of options for those who want a power bank as svelte as their phone — even those who are investing in an iPhone Air. One of Anker’s latest fits the bill: the Anker Nano 5K MagGo Slim power bank.

Now, both Anker and Amazon are running sales on it, dropping the price from $55 to $46. The 16 percent discount a new low for the power bank and available in the black and white…