Keep the lights on when everything goes dark
Tell us what needs to stay on when the power goes out. We tell you what size battery you need, and which one to buy.
Example for an apartment
- Internet router10 W
- Fridge45 W
- 2 LED lamps16 W
- Phone10 W
- Station10 W
Per day≈ 1,690 Wh
For 3 days, you need6,000 Wh
Work it out with your own devices
What people ask us
Guides
How we work
- Brand numbers
- Battery size, power and weight come from the brands. If a number is missing, we say so.
- No old prices
- Prices change every day, so we don’t show them. The button takes you to today’s price on Amazon.
- No fake tests
- We don’t test stations ourselves, and we say so. Our method is simple and public.