SAVE $90.01: The Jackery Explorer 300 portable power station is on sale at Amazon for $188.99, down from the standard price of $279 listed at Jackery. That's a 32% discount that matches the record low at Amazon. $188.99 at Amazon $279 Save $90.01 We're about one month away from Memorial Day weekend, which serves as the unofficial launch of summer. With just a few weeks left in the school year, we'll then be focused on summer camping trips , hikes, and days spent at the beach. If you tend to deal with a dead phone battery on these summer adventures, there's a great solution and as a bonus, it's on sale today. As of April 22, the Jackery Explorer 300 portable power station is on sale at Amazon for $188.99, marked down from the normal price of $279 listed at Jackery . That's a 32% discount that takes $90.01 off the price. It matches the record low price at Amazon.…