$99; https://gosun.co/products/brew
The GoSun Brew is an insulated travel mug that integrates a 12-volt heater and French press. It makes it possible for people to conveniently brew fresh coffee or tea anywhere off-grid, while also having plenty of spare power to charge other electronics at the same time.
Some other amazing features:
The best power to weight ratio of any energy device on the market
Boasts 266-watt hours of capacity
Can charge a laptop 5 times, a smartphone 22 times, or – importantly – brew 8 cups of coffee.
An adjustable DC outlet ranges from 12-24 volts.
Rechargeable battery
Housed and protected in an EVA carry case.