HYBRID STORAGE SYSTEMS. Our innovative hybrid storage solutions combine superb lithium system performance with low lead acid system costs.


BOS HS25 / HS50 / HS100. SMART ENERGY.

INNOVATIVE HYBRID STORAGE SYSTEMS IN THREE SIZES RANGING FROM 250Wh TO 1800Wh CAPACITY WITH 180W POWER


BOS HYBRID SYSTEMS STORE ENERGY IN LITHIUM AND LEAD ACID BATTERIES AND MANAGE THE STATE OF CHARGE OF BOTH THE LITHIUM AND THE LEAD ACID BATTERY IN AN INTELLIGENT WAY.


THE HYBRID BATTERY IS THE CENTRAL UNIT OF A SOLAR HOME SYSTEM

 


 

1 HYBRID BATTERY SYSTEM
The BOS hybrid system is the central unit in the solar home system. It comes with integrated lithium (LiFePO4) batteries. The hybrid system contains a combined, fully featured charge controller for lithium and lead acid batteries that manages the state of charge of both batteries in an intelligent way.

2 SMART LOAD MANAGEMENT
An excess energy output is only switched on, if excess power is available. This helps to run fans, chargers or other high power devices only if there is enough energy. It automatically keeps enough energy for devices that need to be available 24/7. All hybrid systems come with an integrated USB port.

3 LEAD ACID BATTERY
BOS hybrid systems work with AGM, gel and standard lead acid batteries. Already existing batteries can be used as well. The state of charge of the lead acid battery is controlled in an intelligent way and includes all relevant protection and performance features.

4 EASY TO INSTALL
Lithium battery and hybrid charge controller are one unit. A lead acid battery, the solar generator and different loads are simply connected to the BOS hybrid systems using standard wire connectors. There is no need to configure any lithium battery parameters by the customer.


LITHIUM PERFORMANCE AT LEAD ACID COSTS

In pure lead acid systems, batteries often fail within 1 to 3 years, as batteries get damaged by continuous operation at low states of charge. Pure lithium systems perform way better and show longer lifetimes, but are very expensive. Initial investment costs for hybrid systems are close to the costs of pure lead acid systems and approx. 50% lower than pure lithium systems. As costs per stored kWh are around 60% lower in hybrid systems than in lead acid systems, the hybrid system becomes the most cost effective option already in the first 3 years.


HS25 / HS50 / HS100 SYSTEMS ARE AVAILABLE IN TWO HOUSING VERSIONS.

DUST & WATERPROOF IP65 INDUSTRIAL HOUSING

PC160088 frei 2.1

 

 


LITHIUM FOR CYCLING, LEAD ACID FOR BASIC LOAD

BOS hybrid systems combine the advantages of both battery technologies. During the day the lead acid battery is charged with higher priority, resulting in long hours at full state of charge. Surplus energy is stored in the lithium battery, which is used for small cycles and operated in its perfect operation mode by taking advantage of its DOD >90% and its high cycle life. The lead acid battery is only used to power loads once the lithium battery is flat, offering additional power and high backup capacities, whilst staying in a high state of charge at most times.


LONGER BATTERY LIFETIME

The lead acid battery is not strained by deep charging cycles, as the lithium battery is used for running daily cycles. During its long hours at full state of charge the lead acid battery is floated. Compared to pure lead acid systems both effects positively impact the lead acid battery lifetime. By preventing harmful sulphation the lifetime can be increased to more than 10 years. This lowers energy storage costs significantly and has a positive impact on the environment. The lithium battery offers enough charging cycles for more than 10 years of daily use.


EASY UPGRADE OF LEAD ACID SYSTEMS

In existing lead acid systems the battery capacity can be increased by adding lithium (whilst it is technically not recommended to mix old and new lead acid batteries). As BOS hybrid systems feature state of the art lead acid charging, all different kinds of lead acid systems can be upgraded. In existing off-grid systems, the old charge controller simply needs to be replaced by the BOS hybrid system. This improves system performance and decreases power costs immediately. The electrical installation can stay the same, hence efforts and additional costs are minimized.


HS25 / HS50 / HS100 SYSTEMS KEY TECHNICAL SPECIFICATIONS

Tabelle Technical Specification 2 2

made in germany logo 2 2


 SMART SYSTEM SIZING EXAMPLES

Weltkarte Irradiation 2


INSTALLATION VIDEO MANUALS