Bests & Worsts Reviews from Amazon

This portable charger sounded promising. I have multiple portable chargers ranging from 5000mah to 20000mah. This 36800mah charger was meant to replace my older aging portable chargers. TLDR: it is nowhere near its advertised power capacity. On average this pack powers my usb led patio lights about the same as my 7 year old 20000mah portable charger from a well known brand. Folks, you get what you pay for. I estimate this portable charger to be between 15000mah and 20000mah based on my experience.