https://sierramadreresearch.zendesk.com/hc/en-us/articles/4404429785869-How-much-time-do-you-need-to-charge-your-Hot-Pocket-initially-

https://sierramadreresearch.zendesk.com/hc/en-us/articles/4404429785869-How-much-time-do-you-need-to-charge-your-Hot-Pocket-initially-

The Hot Pocket doesn't charge; it only heats. We'd recommend charging the Power Pack instead for first use. If using a standard USB charger, it's best to give it 24hrs of charge.

Note that as long as you have 2 bars of power, you can use your Power Pack or Hot Pocket immediately to try it out and verify everything is working.