From 26. – 27. March 2019 we are at The Solar Show Africa 2019 in Johannesburg, South Africa.

Visit us at booth no. B76 Hall 2 level-2. This email address is being protected from spambots. You need JavaScript enabled to view it.

We are very excited to be part of The Smarter E Europe 2019 in Munich!

From May 15-17th we look forward to meeting you at booth C2.238 in the ees Europe section of the smarter E – Europe’s largest and most-visited exhibition for batteries and energy storage systems.

The German Energy Agency (dena) chose our off-grid India project for one of their best practice projects of innovative smart and sustainable energy technologies made in Germany. We are thankful and looking forward to more projects to come.

For more information about our project with live energy tracker click here



Our LE300 Lithium Extension Battery can be used for many different applications tough it is mainly known for solar home systems and caravans. Today we want to show you the best practice of LE300 installed into a sailing catamaran.

The beautiful sailing catamaran WINDZANG with sail area of 50 m² and length of 9,30 m got an update for its worn-out energy supply system.

read more in our blog



In January 19- 27. we are present at the Boat Düsseldorf.

We are very excited to introduce our LE300 Lithium Extension Battery together with SOLARA at hall 11 stand D24. From Monday till Wednesday, our team will be personally at the fair, meeting interesting business partners and customers.

The boat Düsseldorf is the biggest boat and water sports trade fair in the world and a perfect fit for our LE300 Lithium Extension Battery.

We are looking forward to meeting you at this great event.



We will be at the CMT – The Holiday Exhibition in Stuttgart from 12 - 20 January 2019.
The Holiday Exhibition is the world largest exhibition for caravan, holiday homes and Travel.

Together with HYMER we present the perfect independent power solution for campers and caravans with the HYMER SMART Battery System and BOS LE300 Lithium Extension Battery.

We are looking forward to meeting you at Hall 1, Stand 1C12



The biggest in our product portfolio, 10kWh capacity system, HS10000 was displayed at EES 2018 in Munich which was held together with Intersolar at The Smarter E. There our HS10000 was displayed at our partner Victron’s booth as well, which garnered a lot of attention.

In terms of PV system installation, it is very common to look at batteries, inverters and chargers as separate components, but HS10000 helps you view them as one product. The heart of the 48 V based HS10000 system is the Master Board, developed and engineered by BOS. It controls not only 10kWh of Lithium ion phosphate batteries but also the 5kVA Victron Multiplus inverter and 2 X 70 A Victron MPPT charge controller. The integrated solution helps to cut down the soft costs and reduces your installation time and hassles as everything is pre-wired and pre-configured.

6th of September a group of around 20 people from Central America and the Dominican Republic visited our company. The whole event was organized by the Renewables Academy (RENAC) AG in cooperation with the German-Central America/Caribbean Chamber of Commerce (GTCC). Focusing on the topic “Decentralized Energy Supply with Renewable Energy with a focus on Storage Technology in Germany”, we were happy to present our business model and newest product developments.

HYMER-Smart-Battery-System was awarded with one of the most prestigious award of the German leading automobile magazine AUTO BILD. In the category “best accessory novelty 2018” HYMER-Smart Battery-System won the editorial award of the Golden Auto Bild 2018.The award ceremony was held at the Caravan Salon 2018 in Dusseldorf (-02.09.2018). We congratulate and are thrilled about this special prize.

With the HYMER Smart Battery System you will experience more self-sufficiency, due to state-of-the-art lithium batteries which combines cost effective standard lead acid batteries. Our BOS Lithium Extension Battery LE300 is main component of the system.


We are at the Caravan Salon 2018 in Düsseldorf, the world's largest trade fair for motorhomes and caravans.

Till 02.09.2018 you will find more self-sufficiency for your caravans thanks to the innovative HYMER Smart Battery System. The system consists of our LE300 Lithium Extension Battery modules and will be connected to the existing lead acid battery. Come and visit the HYMER booth in hall 17, we are looking forward to meeting you.

We are excited to present you our fully certified LE300 Lithium Extension Battery. It has the CE marking and with its E24 certificate it is even entitled for automobiles.

With our Lithium Extension Battery you can add capacity and improve the efficiency of any 12 V lead acid battery in an easy and cost-effective way. The intelligent technology allows multiple LE modules to be stacked in parallel to meet your specific system specs. No more worries about too low capacity, energy losses and short product lifetimes.

We cordially invite you to join us at the EES Europe which is part of Smarter E Europe 2018 in Munich, Germany on Jun 20th-22nd.

As one of the most innovative energy startups in Germany, BOS has progressed all the way from smaller size DC systems to the recently launched inverter based HS10000 (10kWh).. One of our highly praised product LE300 Lithium Extension Battery was nominated as finalist for the ees AWARD at Intersolar Europe in 2016. Come and witness our journey across these years as we help people across the globe to minimalize fossil fuel usage for electricity and increase solar usage.  

We are located at booth no C1.140E. We would love to meet you and discuss the business opportunities in near future.

 Sign up for a meeting here.

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