Specifications are maintained on Pack4Back GearDB (community edits and revision history). Values may differ from the manufacturer or your unit—verify before buying.
Best UseCamping
Charge Time (hrs)Wall: 10 hrs.; USB: 10 hrs.; solar: 12-14 hours
External ChargeCar / USB / Wall
Battery IncludedYes
Battery TypeLithium Ion
Solar-PoweredYes
Solar Cell Output Capacity50 watts
Battery Capacity (Wh)505 watt hours
Power Output to DeviceYeti 500X: USB-A: 5V, up to 2.4A (12W max regulated) x 2; USB-C: 5V-12V, up to 3A (18W max regulated); USB-C PD: 5-20V, 3A (60W max regulated); Boulder 50: 8mm: 14-22V 3.5A (50W)
Material(s)Yeti 500X: aluminum/APS plastic; Boulder 50: aluminum/monocrystalline
DimensionsYeti 500X: 11.25 x 7.5 x 5.8 in.; Boulder 50: 26.75 x 21.75 x 1.75 in.
Weight25 lbs. 4.8 oz.