How does the Sofar Solar BTS modular battery system work?

The Sofar BTS system is modular with 5.12 kWh modules each. You can combine from 1 to 4 modules per BDU unit to get from 5.12 to 20.48 kWh. Each module adds 4.75 kWh of usable energy, allowing capacity adaptation to your evolving needs.

What is the operating voltage of the Sofar BTS battery?

The Sofar BTS battery operates at 400V nominal with a voltage range of 350 to 435V at full charge. This high voltage reduces losses and optimizes system efficiency, particularly suitable for important commercial and residential installations.

Which inverters is the Sofar BTS battery compatible with?

The Sofar BTS battery is perfectly compatible with SOFAR ESI inverters for optimal integration. It communicates via CAN-BUS and is also compatible with other inverters supporting this protocol. A detailed compatibility list is available according to chosen configuration.

Can multiple Sofar BTS systems be connected together?

Yes, you can connect up to 2 BTS systems in parallel to reach a maximum capacity of 40 kWh. Each system can contain up to 4 modules of 5.12 kWh, offering exceptional flexibility for large capacity installations.

What is the charge/discharge power of the Sofar BTS battery?

Power varies according to number of modules: 2.5 kW for 1 module, 5 kW for 2 modules, 7.5 kW for 3 modules, and 10 kW for 4 modules. Nominal current ranges from 6A to 24A depending on configuration, with BDU unit supporting up to 35A.

Is the Sofar BTS battery installation complex?

No, the Sofar BTS system is designed plug-and-play with quick-connect cables for simplified installation. Modules stack easily and the BDU unit automatically manages up to 4 batteries individually. Floor installation doesn't require complex wall mounting.

What are the operating conditions for this high voltage battery?

The Sofar BTS battery operates from -10°C to +50°C with IP65 protection rating resistant to weather. It supports humidity from 5 to 95% and can operate up to 4000m altitude. Natural cooling eliminates noise nuisances.

How to monitor and manage the Sofar BTS battery system?

The BDU unit individually monitors each module with LED indicators for charge status. It precisely manages each cell's data (voltage, temperature) and balances charge/discharge to extend lifespan. CAN communication enables complete integration with your system.

Does the AGM Ultracell 12V 18Ah battery require special declaration or authorization?

No, this 12V 18Ah AGM battery requires no administrative declaration. Its intermediate capacity and sealed AGM technology make it perfectly suited for residential and commercial solar installations without particular regulatory constraints in France or Belgium.

Does this battery improve my photovoltaic energy autonomy?

Absolutely. This 18Ah AGM battery efficiently stores energy produced by your solar panels to power your 12V equipment for several hours without sunlight. It provides ideal autonomy for lighting, ventilation, alarm systems and photovoltaic monitoring equipment.

Which photovoltaic systems is the AGM Ultracell battery compatible with?

This 12V 18Ah battery is compatible with all 12V solar systems, including PWM and MPPT regulators, 12V inverters, solar pumping systems and monitoring installations. It accepts standard charging voltages (13.5V-13.8V) and supports charging current up to 5.4A.

Can multiple AGM Ultracell 18Ah batteries be installed in parallel?

Yes, these AGM batteries can be connected in parallel to multiply storage capacity. With their low internal resistance (16mΩ) and homogeneous technology, they are perfectly suited for parallel configurations for larger photovoltaic systems.

Is the AGM Ultracell 18Ah battery suitable for off-grid installations?

Perfectly. This AGM battery is ideal for off-grid sites thanks to its sealed, maintenance-free and shock-resistant technology. Its low self-discharge (1-3% per month), 5-year lifespan and 500-1200 cycles make it an excellent choice for cabins, RVs or off-grid installations.

What solar panel power is needed to charge this battery?

For a 12V 18Ah battery, a 50 to 100W solar panel is optimal depending on usage. With a 75W panel, you get a full charge in one sunny day. This combination is perfect for autonomously powering LED lighting, ventilation, pumps or surveillance systems.

Sofar lithium battery: Modularity, optimum autonomy

Sofar Solar Lithium Battery 5 to 20 kWh BTS + BDU

€2,021.97

Tax included

Reference: SOFAR BTS-5K-BDU

EAN13: 0768563820205

Optimize your energy autonomy with the Sofar Solar Lithium Battery.

Designed for easy installation and maximum flexibility, the Sofar Solar battery adapts to your specific needs. With advanced LiFePO4 technology and an intelligent battery management system, it provides a reliable and durable energy storage solution.

Why choose Sofar Solar?

Modularity: Adjust your system's capacity to your consumption by adding 5.12 kWh modules.
Simplified installation: Plug-and-play design for quick commissioning.
Longevity: LiFePO4 technology offering exceptional lifespan and a high number of charge cycles.
Performance: Maximize your self-consumption and reduce your dependence on the grid.
Safety: Integrated battery management system for optimal protection.

Advantages of energy storage:

Energy independence: Use your own solar energy, even without sunlight.
Savings: Lower your electricity bills by optimizing your consumption.
Enhance your solar installation: Increase the efficiency of your photovoltaic system.

With the Sofar Solar Lithium Battery, invest in a clean, high-performance, and durable energy solution for your home.

Please note: maximum 4 battery modules per BDU + Base unit

To check the stock of the lithium battery BTS 5 K, click on this link. For the stock of the BDU, click on this link

Nombre de batteries BTS: 1 battery BTS + 1 BDU

Sofar Solar Lithium Battery...

€2,021.97

Sofar Solar BTS Lithium Battery: Modular and Scalable Solar Energy Storage

Discover the latest in residential energy storage with SOFARSOLAR's intelligent battery system, offering flexible capacity from 5 to 40 kWh to meet all your energy needs. Comprising 4 LiFePO4 battery modules and a battery distribution unit, this revolutionary system lets you easily expand capacity thanks to its modular, stackable design.

Installation becomes child's play with quick-connect cables, guaranteeing fast, user-friendly set-up. And with the ability to connect up to two systems in parallel, you benefit from a maximum energy storage capacity of 40 kWh, ensuring uninterrupted power for your home.

What's more, the BTS series is perfectly compatible with SOFAR ESI inverters, ensuring seamless integration and optimum system efficiency. Don't miss the opportunity to adopt state-of-the-art energy storage technology for a smart, eco-responsible home.

Immerse yourself in the world of absolute control with Sofar's BTS 5K-BDU system. Imagine connecting and monitoring each module of your battery system with unparalleled efficiency, managing up to four batteries individually.

With its cutting-edge technology, this unit gives you the ability to precisely manage and monitor each cell's data, from voltage to temperature. By meticulously balancing cell charge and discharge, it significantly extends the life of your battery. What's more, with the flexibility of connecting multiple batteries in parallel, you can easily expand capacity to suit your specific needs, guaranteeing continuous use without compromise.

Integrating this element into your batteries will not only enhance their autonomy, but also ensure smooth, long-lasting operation. With Sofar's BTS 5K-BDU, you're in the driver's seat, ready to tame energy for a home that's smarter and more eco-responsible than ever.

Important notice for our customers in Belgium:

As part of our commitment to regulatory compliance and environmental responsibility in Belgium, we would like to inform our customers that the purchase of a Sofar Solar BTS 5K battery is subject to a mandatory environmental contribution. An amount of €144.50 excluding VAT must be added for each battery purchased, as a direct contribution to Bebat, the organisation in charge of managing batteries and accumulators in Belgium. This measure complies with current Belgian environmental legislation. For more information, click here

Here is the reference list and the corresponding fee!

When purchasing lithium batteries, please add the following product Sofar Solar BTS 5K Lithium Battery environmental fee corresponding to the number of batteries you order. Otherwise, we will recalculate and invoice the amount after the purchase.

Features

Modèle	BTS E5-DS5	BTS E10-DS5	BTS E15-DS5	BTS E20-DS5
Type de batterie	LFP
Unité de distribution de la batterie	BTS 5K-BDU
Nombre d'unités de distribution de la batterie	1
Module de batterie	BTS 5K
Nombre de modules de batterie	1	2	3	4
Énergie totale de la batterie	5,12 kWh	10,24 kWh	15,36 kWh	20,48 kWh
Énergie utilisable	4,75 kWh	9,5 kWh	14,25 kWh	19,00 kWh
Capacité nominale	100 Ah	200 Ah	300 Ah	400 Ah
Puissance nominale	2,5 kW	5 kW	7,5 kW	10 kW
Tension nominale	400 V
Plage de tension à pleine charge	350 – 435 V
Courant de charge/décharge nominal	6 A	12 A	18 A	24 A
Degré de protection	IP 65
Plage de température ambiante	- 10°C - 50°C
Plage d'humidité relative admissible	5 – 95 %
Max. Altitude de fonctionnement	4000 m
Poids	59 kg	110 kg	161 kg	212 kg
Dimensions (L x H x P)	708 x 170 x 680 mm	708 x 170 x 1100 mm	708 x 170 x 1520 mm	708 x 170 x 900 mm + 708 x 170 x 1100 mm
Installation	Support au sol
Refroidissement	Naturel
Affichage	Indicateurs LED
Communication	CAN
Onduleurs compatibles	Veuillez vous référer à la liste de configuration du BTS E5~20-DS5.
Module de batterie
Modèle	BTS 5K
Énergie du module de batterie	5,12 kWh
Tension nominale	400 V
Puissance nominale	2500 W
Dimension (L x H x P)	708 x 170 x 420 mm
Poids	50 kg
Unité de distribution de la batterie
Modèle	BTS 5K-BDU
Max. Unité de charge / décharge	35 A
Dimension (L x H x P)	708 x 170 x 200 mm
Poids	7,5 kg
Standard
Certificats	UN38.3, IEC62619, IEC62040-1, SAA, etc.

Comparative table of price per useful kWh over battery life at a glance!

Comparatif des batteries

There are several storage technologies: Gel or AGM batteries, lithium batteries, OPzS and OPsV. It's not easy to choose the right technology for your needs. Each technology has its own characteristics (size, power, cost, number of cycles and service life, etc.). With this table, you can quickly compare the price per useful kWh over the lifetime of the batteries.

C10 = 10-hour charge/discharge test.
C24 = examination of a charge or discharge in 24 hours.

Click here to see our comparison table.

Reference SOFAR BTS-5K-BDU

Data sheet

Voltage: 400 V
Technology: LFP (LiFePO4)
Width: 708 mm
Height: 680 mm
Thickness: 170 mm
Rated capacity: 100 Ah
Weight: 50 kg
Communication: CAN
Max. quantity in a series: 4 pieces
Recommended charge/discharge current: 6A

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Sofar Solar Lithium Battery 5 to 20 kWh BTS + BDU

Sofar Solar Lithium Battery...

Confirm quotation creation

Sofar Solar BTS Lithium Battery: Modular and Scalable Solar Energy Storage

Important notice for our customers in Belgium:

When purchasing lithium batteries, please add the following product Sofar Solar BTS 5K Lithium Battery environmental fee corresponding to the number of batteries you order. Otherwise, we will recalculate and invoice the amount after the purchase.

Features

Comparative table of price per useful kWh over battery life at a glance!

Data sheet

Specific References

Download

Sofar batt. BTS-5K Fiche Tech-FR

Sofar batt. BTS-5K Datasheet-EN

Sofar batt. BTS-5K Ficha Tecn-ES

Sofar batt. BTS-5K Manual-EN

Sofar batt. BTS-5K Manuel-FR

Sofar batt. BTS-5K Manual-NL

Sofar batt. BTS-5K Manual-ES

Sofar batt. BTS-5K datablad-EN

Sofar batt. BTS-5K datenblatt-DE

Sofar Warranty Extension Price

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