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Store electricity with POWER BOX

Visit us Sa 4. May 2024 on Green Day 2024 St Gallen in Haag: public transport is free!

Our company building was awarded 31. Swiss Solar Prize in Geneva with a Diploma

Laudatio, more about the building in this News article

Maximizes your PV self-consumption
Electricity cost from 0.1 EUR/kWh
Capacity can be expanded any time
Provides electricity in case of an outage

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 storage battery systems, our consulting pays off!

I guarantee for qualiy of our products and services
Dr. Daniel Bächi

Dr. Daniel Bächi, Founder and Owner BÄCHI POWER

Example Project

1) Analysis electricity consumption
2) Calculation Battery and PV size
3) RFQ electricians and PV installers
4) Preparation PV and electrical distribution board
5) Delivery and installation battery and inverter

BÄCHI POWER services and products

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

POWER BOX and Hybrid inverters allow to quickly realize both grid connected installations in residential and commercial buildings and redundant multibox off grid systems.

Capacities from 20 kWh and power up to 300 kW are our specialty but we can also both smaller or bigger

For PV and electrical installations we cooperate with local partners and if you wish we provide project management so you have a single point of contact.


Our POWER BOX stores and delivers electricity

Reliable and durable storage thanks to unique design for compatible hybrid inverters
Single BOX up to 24 kWh
Floor space 40x50 cm
Height 130 cm

Cells: Sodium Ion, Lithium Iron Phosphate (LFP) or Second Life

Base unit with BMS, PowerBalancer, display from 3900 CHF
Cells from 190 CHF pro kWh

e.g. 24kWh LFP incl installation, setup and delivery for 9900 CHF


Powers your building with your own electricty, even in a blackout

e.g. Studer Innotec (CH), Deye (CN) und GROWATT (CN)

12kW 3-phase, with surplus feedback to grid ad Generator interface, Smart load management, Car Charging etc

from 3900 CHF

Special for small PV: 5kW single phase, can charge a car

from 1490 CHF



Mobile operation of induction stove, coffee machine, "Electric reserve canister" for charging stranded EVs. Also suitable as module for traction battery.

Size 35x50x20cm, rugged 3mm aluminum housing, incl Battery Management and Monitor

12/25 V up to 6000 Wh

from 1900 CHF

Accessories: 2000W inverter, 300/600W AC charger, 200W Mobile PV, Type 2 car charger


Ultracompact Type 2 car charger, charges with 1.4-11 kW and 1-3 Phase. Thanks to integrated WLAN it can communicate with load managers and every PC, Smartphone etc.

The intelligent charger can automatically adjust charge power to actual PV production and building battery state of charge.

from 250 CHF

Accessories: Transport bag, external antenna for weak WLAN signal, wallmount, travel plug adapter D/F/UK/etc



Local management and monitoring system incl webserver for inverters without cloud connection and load management for multi car charging installations

from 1900 CHF

Software and measurement hardware for AC current 0-100A 4 channels and voltage 0-270V 3 channels, integrated UPS with 2h run time


Reserve battery and powerbank 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. Simple attachment to any frame .

300 CHF
E-Bike Range Booster


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

We are happy to consult you with our extensive experiene with mobile solutions on the ground, on water and in the air.


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 Altstätten


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