Electric backpacking and camping stove plugged into USB-C battery on tree stump

Find the right battery to fuel your next adventure!


Quick Start

Backcountry cooking has never been easier! Simply plug EcoSimmer into a compatible 100 W USB-C battery and get cooking in minutes!

EcoSimmer requires:

Lightning bolt and power icon

100 W Power Source

When choosing which battery is right for you and for EcoSimmer, keep the following in mind:


EcoSimmer requires 100 W of continuous power delivery (PD) from USB-C. Look for batteries with explicit 100 W capable USB-C ports and watch out for batteries that may step down PD as energy is consumed.

Cooking requires a lot of energy, and so larger batteries tend to be best. Select a battery (or two) based on how much you plan on cooking with EcoSimmer (see below for detail on calculations).

Batteries aren’t all made the same. You get what you pay for. Consider alternate uses for your battery in the backcountry: charging your phone, kindle, camera, etc., as well as how accurately do you want to know the amount of energy remaining?


Anker 737 Power Bank

Weight (oz): 22.2
Spec Size (in): 6.1x 2.2 x 1.9
Energy Capacity (Wh): 86.4
Display Type: Display Screen

AOHI 30000 mAh PD

Calc Weight (oz): 18.7
Spec Size (in): 6.0 x 3.5 x 1.0
Energy Capacity (Wh): 100.0
Display Type: 4 LEDs


See Our Battery Blog

Check out our guide on recommended batteries for EcoSimmer. We keep this up-to-date with the batteries we test and find to be compatible with EcoSimmer!

Electric camping stove and battery next to traditional gas camping stove and pot


EcoSimmer eliminates the need for fire, flame, and
fossil fuel from the backcountry.


A fully charged 100 Wh battery can bring roughly 32 fl. oz. of water to a boil, or 64 fl. oz. of water to coffee temperature with EcoSimmer.

Efficiently using your battery can lead to extra charge for your electronics or for an extra cup of hot coffee. Our best tips and tricks to do this are to:

1) Try coffee temp if your water is already purified and don’t require a boil, try heating to a lower temperature.

2) Keep the lid on to reduce heat waste and to ensure all heat goes towards warming up your food or drinks.

3) Use only as much water needed, no more water will heat linearly, so removing half the water will halve the heating time and energy drain on your battery.

4) Start with warmer water try starting with warmer water to reduce the temperature differential to coffee temp or to boiling temp.

Temperature References:
212ᵒF (100ᵒC) Boiling Temp
158ᵒF (70ᵒC) Coffee Temp
68ᵒF (20ᵒC) Room Temp
32ᵒF (0ᵒC) Freezing

EcoSimmer utilizes 100 W of power to cook and always cooks at the same rate. Because of this, cook times scale linearly (meaning doubling the amount of water being heated will double the cooking time, and so on).

As well, shave minutes off your cooking time by brining water to a coffee temp or to a simmer, not all the way to a boil. 

Yes! If you have access to a power outlet, you can use this to power EcoSimmer. Simply use a converter or power brick which can output
100 W of USB-C power to EcoSimmer.

Yes! However, EcoSimmer requires a continuous supply of 100 W to work and solar is often too intermittent to support this. Solar however can be used to recharge batteries for a 100% fully renewable backcountry cooking solution!