Amazon is offering the Jackery Explorer 100 31,000mAh Power Bank for $99.99 after you clip the $30 off coupon on the product page.
This is the largest capacity power bank we've seen that's TSA carry-on eligible. It also uses superior LiFePO4 battery cells, can charge up to 3 devices simultaneously, and boasts up to 100W charging output via USB Type-C.At first glance the Jackery Explorer 100 looks like one of those large power stations you might use as a backup battery for your home.
But actually, this thing is pretty small, small enough to fit on the palm of your hand. It measures only 5"x3.4"x3.4" and weighs about 2 pounds.
This is a 99Whr power bank, which means it just barely squeezes its way under TSA's sub-100Whr requirement. With a 31,000mAh total capacity, this is definitely the largest TSA carry-on eligible power bank we've posted on IGN.Unlike most smaller power banks which use lithium-ion cells, the Jackery Explorer 100 uses LiFePO4 cells.
They're usually more expensive and also a bit heavier, but in exchange you get inherently safer battery chemistry and a much longer lifespan, both in terms of number of cycles and calendar aging.The Jackery Explorer 100 has three outputs: two USB Type-C with PPS and Power Delivery up to 100W total, and a USB Type-A with 28W of charging for a total of 128W.