For instance, some of them come with built-in flashlights. Which can be an invaluable thing to have if you need one when camping and forgot to bring one proper. At least one model on sale also offers a wireless charging pad so you can charge devices that support wireless charging. Like your smartphones, earbuds and more. Speaking of wireless charging, one model that offers it is the EcoFlow River Mini, which is on sale during Prime Day for just $244.30. This is down from its normal price of $399 which is a pretty big price cut. The unit offers 210 Wh of power plus it comes with a ton of ports. Including three USB-A ports, one USB-C port, two AC outlets, and one car output. Or you could go for the EcoFlow River 288Wh Power Station which on sale for $199. This model offers 288Wh of power instead of 210Wh like the River Mini. It does not however have the wireless charging pad. But it does come with three AC outlets instead of two, as well as a USB-C port, three DC ports, a car output, and flashlight. And if you really want to kick things up a notch, check out the EF EcoFlow Delta. Which is on sale for $1,399 down from $1,799. This model comes with a whopping 1,612Wh of power. So you can charge your devices longer, or simply charge more devices at once. It has 4 USB ports (two USB-A fast charge and two USB-A), two USB-C ports, six AC outlets, one car output, and two DC ports. EcoFlow Portable Power Stations