A high‑capacity outdoor‑focused power bank, the RPP‑321 packs a 50 000 mAh lithium‑polymer battery (185 Wh, 3.7 V), providing an effective rated output capacity of around 31 500 mAh @ 5 V/2 A . Built for on‑the‑go power, it includes a bright LED flashlight and an LED digital display to show remaining battery levels .