Anker’s portable backup battery is an even better investment now that it’s nearly half off

Anker’s 521 PowerHouse can power up to six devices.

Winter storms across the country are bringing heavy snow, rain, and — in some cases, as this Californian who briefly lost power a few days ago can attest — outages. If you want to prepare, Anker’s 521 PowerHouse can help keep your essential devices running and it’s on sale for $129.99 ($120 off) at Amazon. That is about $2 shy of its all-time low price and the best price we’ve seen since Black Friday.

Anker 521 PowerHouse

Where...