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We develop, produce and sell energy storage and innovative solutions for solar power self-consumption

Our company building was awarded with a Diploma at the 31st Swiss Solar Price in Geneva!

Laudatio, more about the building in this news article

100% Solar power from your own system
Power even in the event of a blackout
Electricity cost from 0.1 USD/kWh
Storage capacity can be expanded at any time

We rely on our own products, 24 hours a day, 365 days a year.
Visit us: We are happy to show you and explain our solutions in day-to-day operation. In addition to the products shown below, there is much more to discover.
Benefit from more than 10 years of experience with large lithium batteries, our consulting pays off!


BÄCHI POWER services and products

Consulting, delivery and installation from a single source. Developed, manufactured, tested in Switzerland

With the POWER BOX and one or more hybrid inverters, systems with a grid connection (single-family house, apartment, commercial establishments) but also without (high-performance stand-alone systems for alpine huts, etc.) can be quickly installed.

Redundant systems with several boxes can also be easily implemented.

Storage capacities of 10-100 kWh and outputs of 2-30kW are our specialty, but we can also do smaller and bigger.

For photovoltaic and electrical installation, we work together with local partners and take over the project management. If you wish, you only have one contact person.


Provides electricity when you need it: POWER BOX

50V LFP battery with BMS for integrated or external full hybrid inverters
Up to 24 kWh per BOX
Can be expanded at will
The BOX fits anywhere with just 40x50x130cm

Capacity optimally adapted to your needs at an unbeatable price:
300 CHF per kWh!

Basic device including BMS, PowerBalancer, control unit, durable 3mm Aluminum:
single cabinet 7000 CHF, dual cabinet 12000 CHF
Installation and commissioning including inverter 2000 CHF

On request, we can also give your electric car battery a second life!

Powers your building even in case grid is down: HYBRID INVERTER

Adapted to your needs

e.g. 12kW 3-phase, with feed-in and options such as generator connection, smart load management, car charging etc

We recommend Studer Innotec next3 (CH) and Deye SUN (CN).

from 2000 CHF

Hybrid inverter
Mobile Power

Electricity everywhere: MOBILE POWER

25.6 oder 12.8V Lithium Ironphosphate 5800 Wh

Mobile operation of induction stove, coffee machine, charging of EVs like car (30-40km) and E-Bike. Also suitable as module for traction battery

Supercompact: 33x47x20cm, Robust 3mm Aluminumhousing, 43kg, incl Battery Management and Monitor

3500 CHF

Options: 2000W inverter (+500CHF), 350W AC charger (+150CHF), 600W AC charger (+300CHF), 200W Mobile Folding solar panels (+350 CHF), Type 2 EV charger (+350 CHF)

Carries you further: RANGE BOOSTER

Spare battery and power bank for E-Bike

Can be used with any e-bike, voltage 28-60VDC, 150Wh. Can recharge the e-bike both during breaks and while driving. The RANGE BOOSTER can even power the e-bike all by itself. Easy to attach to the frame with Velcro.

300 CHF
Range Booster
Custom Battery


We source, develop and build your dream battery solution with BMS, balancer, inverter, display, etc

We would be happy to consult you, please contact us

We are experienced with mobile solutions for trailers, scooters, agricultural vehicles and RVs from 1 to 20kWh.

from 2000 CHF


Contact us for an offer tailored to your needs. We look forward to get to know you!

Tel: +41 79 299 14 88


Nordstrasse 2, CH-9469 Haag

Car: Motorway A13, Exit Haag, Main road direction Wildhaus
Public transport: Train to Buchs SG, Bus 300 Direction Altst├Ątten


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