I bought this one, works perfectly and is more durable than the crappy included charger.

https://www.amazon.com/gp/aw/d/B073CQCGM2

This one works great. Have been using for over 2 years with my mighty. IBERLS 12V 3A 36W DC Power Supply Adapter for CCTV Camera, LED Strip Light ect Household Electronics, 5.5x2.1 DC Plug, Compatible with 2A, with 4 Connector (LED Connection, 4.0x1.7, 3.5x1.35, 5.5x2.5) https://smile.amazon.com/dp/B073CQCGM2/ref=cm_sw_r_cp_api_glt_fabc_5HXJRPVND630211WN15K?_encoding=UTF8&psc=1