Home SunLit B215 2150 Wh Extension Storage for Balcony Power Storage BK215

SunLit B215 2150 Wh Extension Storage for Balcony Power Storage BK215

SKU: SL-B215NEW
Type: Brand New
Sale price 999,00 €
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Guarantee & Return Policy

Effective Date: December 10, 2025

At OpenELAB, we are committed to providing accurate product descriptions and high-quality electronics. The following policy outlines your rights and obligations, designed to be fair to both our customers and our business operations globally.

1. Warranty Policy

A. Standard Limited Warranty (Global & US)

For customers in the United States, Asia, and other non-EU regions:

  • Warranty Period: OpenELAB provides a 12-month warranty from the date of delivery.

  • Coverage: This warranty covers defects in material and workmanship under normal use.

  • Resolution: We will repair or replace defective units at no charge.

B. Statutory Rights for EU/UK Customers (EU Compliance)

If you are a consumer residing in the European Union or the UK purchasing from our global site:

  • Statutory Guarantee: You are entitled to a 24-month statutory guarantee for conformity defects present at the time of delivery, in accordance with EU consumer protection laws.

  • Relation: The Standard Limited Warranty (Section 1.A) applies in addition to, and does not replace, your statutory rights.

C. Warranty Exclusions (Applies to ALL Regions)

Warranty coverage is VOID if the damage is caused by:

  1. Misuse: Incorrect installation, reverse polarity, or exceeding voltage limits.

  2. Unauthorized Modification: This explicitly includes soldering, cutting pins, modifying the PCB, or flashing unauthorized/beta firmware that "bricks" the device.

  3. Physical Damage: Drops, moisture/water damage, or electrical surges (lightning).

  4. Normal Wear & Tear: Consumable parts (e.g., batteries), unless defective upon arrival.

Note: For non-warranty repairs (e.g., customer-induced damage), we may offer repair services for a fee. Shipping and diagnostic costs will be borne by the customer.

2. Return & Refund Policy

A. Return Window

  • Standard: You may request a return within 31 days of receiving your order.

B. Refund Conditions & Restocking Fees

To protect against policy abuse, the refund amount is strictly determined by the condition of the returned item.

1. Full Refund (100%)

  • The item is Brand New, Unopened, and Unused.

  • The original packaging is intact and sealed.

  • All accessories are present.

2. Partial Refund (Restocking Fee / Value Depreciation)
If the item is returned in a condition that prevents it from being sold as new, OpenELAB reserves the right to deduct a Restocking Fee (for US/Global) or Compensation for Loss of Value (for EU) from the refund amount.
Deductions apply if:

  • Signs of Use: Visible scratches, mounting marks on screw holes, or fingerprints.

  • Damaged Packaging: Original box is torn, written on, or missing.

  • Technical Modification: The device has been soldered, permanently installed, or flashed with unauthorized firmware.

  • Broken Seals: Anti-static bags or security seals have been opened.

Depending on the severity of the usage/damage, the deduction may range from 15% to 50% of the product price. Items damaged beyond repair due to misuse will not be refunded.

C. Shipping Costs

  • Defective / Wrong Item: OpenELAB covers the return shipping cost.

  • Customer Remorse (Changed Mind / Ordered Wrong Item): The customer is responsible for all return shipping costs to our designated return center (located in the US, Germany, or China, depending on your region). Original shipping fees are non-refundable unless required by local law.

3. Return Process (RMA)

To ensure a smooth return process, please follow these steps:

  1. Authorization: Contact us at info@openelab.io before returning any item. Returns without prior authorization will not be accepted.

  2. RMA Number: We will provide you with a Return Merchandise Authorization (RMA) number and the correct return address.

  3. Packing: Ship the item back in its original packaging with the RMA number clearly marked on the shipping label (not on the product box).

  4. Tracking: We strongly recommend using a trackable shipping method. OpenELAB is not responsible for returns lost in transit.
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SunLit B215 2150 Wh Extension Storage for Balcony Power Storage BK215

SunLit B215 2150 Wh Extension Storage for Balcony Power Storage BK215

Expand the capacity of your SunLit BK215 balcony power plant storage unit with the B215 expansion storage unit

  • Increase the capacity and efficiency of your balcony power plant with SunLit's innovative B215 expansion storage, specifically designed to complement your existing BK215 system. By adding up to three expansion storage units, you can increase your storage capacity to an impressive 8.6 kWh and increase the PV input power up to 4 kW - a milestone for demanding energy consumers.
  • Thanks to the B215's advanced MPPT input, which can handle a PV input power of up to 800W, you can make maximum use of any solar radiation. This allows you to benefit from an efficient and sustainable energy supply, even when the sun is not shining. Experience the freedom to call up generated solar energy at any time and enjoy a continuous energy supply into the night.
  • Installing the B215 expansion cylinder is extremely simple and can be seamlessly integrated into your balcony power plant. This means you can benefit from extended and optimized energy storage without any fuss.
  • Help protect the environment and increase your energy independence with the B215. Our solution is a future-oriented investment that efficiently stores your unused solar system energy and ensures a sustainable future.

    

Expand your energy potential now with the SunLit B215 expansion cylinder - your solid choice for an advanced, efficient and environmentally conscious energy solution.

    

Product details:

  • Suitable for SunLit, Deye and APsystems inverters: The SunLit B215 in conjunction with the BK215 balcony power station storage unit is only compatible with SunLit, Deye and APsystems inverters. After placing your order, please let us know which inverter you are using to ensure that you receive the correct version of the storage system. If you do not have one of these inverters, please contact us for a special offer.
  • Storage capacity: 2150 Wh per expansion module
  • Expansion: Optional addition of up to three B215 modules
  • Installation: Uncomplicated connection via earthing contact plug
  • PV input power: Expandable up to 4 kWp, total storage capacity up to 8.6 kWh
  • Price advantage: Benefit from the 0% tax rate according to JStG 2022
  • Power: Up to 800 watts output with bypass function
  • Applicability: Indoor and outdoor use thanks to IP65 protection class and BMS with parking heater
  • Monitoring: Real-time data and optimization of the feed-in via Sunlit Solar App
  • Connections: Four MC 4 outputs and two MMPT inputs for the connection of micro inverters
  • Weight: Approx. 32.5 kg for easy installation and mobility

  

Increase your energy efficiency and get the SunLit B215 expansion storage system for a sustainable and energy-independent home.

  

Was ist Refurbished beim B215? 

Der SunLit Balkonkraftwerkspeicher B215 in der "Refurbished"-Version bietet Ihnen eine hochwertige und preiswerte Alternative zu einem brandneuen Gerät. Dieses aufgearbeitete Produkt wurde bereits einmal verkauft und aus verschiedenen Gründen zurückgegeben – beispielsweise aufgrund von Fehlbestellungen oder spezifischen Kompatibilitätsbedürfnissen. Nach der Rücksendung wurde der B215 sorgfältig geprüft und instand gesetzt, um die gleiche Funktionalität wie ein neues Gerät zu gewährleisten.

    

Was bedeutet "Refurbished"?

Wenn wir ein Produkt als "Refurbished" kennzeichnen, bedeutet dies, dass es bereits in Gebrauch war, aber durch unsere Fachtechniker gründlich überprüft und wieder in einen Zustand versetzt wurde, der den Neugeräten entspricht. Es funktioniert zu 100% einwandfrei, es kann jedoch sein, dass leichte Gebrauchsspuren sichtbar sind. Diese Spuren sind rein kosmetischer Natur und beeinflussen die technische Leistung des Speichers nicht.

     

Ihre Vorteile auf einen Blick

  • Qualitätsgesichert: Jeder B215 wird nach strengen Standards getestet, um sicherzustellen, dass er voll funktionsfähig ist.
  • Preiswert: Refurbished Produkte sind preislich günstiger als neue Modelle und bieten somit eine kosteneffektive Lösung.
  • Umweltfreundlich: Durch den Kauf eines aufgearbeiteten Gerätes tragen Sie dazu bei, die Umweltbelastung zu verringern, da weniger Ressourcen für die Herstellung eines neuen Produkts benötigt werden.

1. General Shipping Information

  • We provide premium shipping methods with a tracking number for each order.
  • Shipping addresses must be entered in English without special symbols to help the courier company recognize your address in the system. We will ship strictly according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
  • Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
  • We can ship all in-stock orders within 1 business day after your order has been confirmed.
  • All items are inspected before dispatch and are carefully hand-packed.
  • With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.

🚀 Need Faster Shipping?

If you require expedited shipping (Express), please contact our customer support team at info@openelab.io for a customized quote tailored to your location.

2. Shipping Rates & Options

Our shipping rates are calculated based on the order value and destination. Please refer to the tables below for details.

2.1 Germany (Domestic)

Shipping Method Order Value Cost Est. Delivery
Deutsche Post €0 - €50.00 €4.95 2-4 Business Days
Deutsche Post Over €50.00 Free 2-4 Business Days
DHL Paket
(Faster Delivery)		 €0 - €50.00 €6.95 1-3 Business Days
DHL Paket
(Faster Delivery)		 €50.00 - €100.00 €2.00 1-3 Business Days
DHL Paket
(Faster Delivery)		 Over €100.00 Free 1-3 Business Days

2.2 European Union (EU)*

*Including:

Åland Islands, Andorra, Austria, Belgium, Bosnia & Herzegovina, Bulgaria, Croatia, Czechia, Denmark, Estonia, Faroe Islands, Finland, France, Gibraltar, Greece, Guernsey, Hungary, Ireland, Isle of Man, Italy, Jersey, Latvia, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Svalbard & Jan Mayen, Sweden.*
Shipping Method Order Value Cost Est. Delivery
Deutsche Post €0 - €100.00 €7.95 5-9 Business Days
Deutsche Post Over €100.00 Free 5-9 Business Days
DHL Paket
(Faster Delivery)		 €0 - €100.00 €15.95 3-7 Business Days
DHL Paket
(Faster Delivery)		 €100.00 - €250.00 €7.95 3-7 Business Days
DHL Paket
(Faster Delivery)		 Over €250.00 Free 3-7 Business Days

2.3 United States

Region Shipping Method Order Value Cost Est. Delivery
Continental U.S.
(50 States)		 USPS Ground Advantage €0 - €45.00 €5.95 3-7 Business Days
USPS Ground Advantage Over €45.00 Free 3-7 Business Days
USPS Priority Mail €0 - €45.00 €16.95 1-4 Business Days
USPS Priority Mail Over €45.00 €14.95 1-4 Business Days
Non-Continental U.S.
(AK, HI, PR, etc.)		 USPS Ground Advantage €0 - €60.00 €6.95 5-9 Business Days
USPS Ground Advantage Over €60.00 Free 5-9 Business Days

* The regions in the Non-Continental U.S. include: Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and all U.S. Armed Forces addresses. The shipping and delivery to these areas are subject to the Non-Continental U.S. shipping rules.

2.4 International (Outside EU)

For specific international destinations, including Switzerland, United Kingdom, and Norway.

Order Amount Shipping Cost
€0 - €300.00 €19.95
Over €300.00 Free

Important Notice:

  • Inventory Status: Please check the inventory status on the product page. Our system displays real-time stock for our Munich and Long Beach warehouses. If an item is out of stock in these locations, it will be marked as "Pre-order". You can still place an order for these items.
  • Pre-order Fulfillment: For "Pre-order" items, we arrange the most efficient logistics solution to ensure you receive your goods as quickly as possible. Your package may be shipped directly from our Shenzhen warehouse. Alternatively, as part of our standard restocking process, we may transport the goods to our Munich or Long Beach warehouse first (typically taking 5-10 business days) before dispatching them to you.
  • Split Shipments: If your order contains both in-stock and Pre-order items, we will prioritize shipping the in-stock items from the local warehouse immediately. The remaining Pre-order items will be sent to you in a separate shipment once they are ready.

3. International Warehouse

Our products are stored in our Munich, Long Beach, and Shenzhen warehouses to provide more flexible logistics solutions tailored to different regions and customer needs. On each product's description page, we indicate the specific warehouse location to help you better plan your purchase and delivery schedule.

3.1 German Warehouse

For products stored in our warehouse in Munich, we use either Deutsche Post or DHL for shipping, depending on the size of the package. Logistics within Germany are very efficient, with an estimated delivery time of 2-4 business days, ensuring you receive your order quickly and conveniently. For Western EU countries, the estimated delivery time is 4-6 business days. For Eastern EU countries, the estimated delivery time is 6-8 business days.

3.2 US Warehouse

For products stored in our warehouse in Long Beach, we use either USPS or UPS for shipping, depending on the size of the package. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days, ensuring you receive your order quickly and conveniently.

3.3 Chinese Warehouse

For Pre-order items or orders fulfilled directly from our Shenzhen warehouse, we utilize YunExpress for reliable international shipping. Given the complexities of international shipping, the estimated delivery time for these packages is around 10 business days, though this may vary slightly due to customs processes or other uncontrollable factors. Otherwise, products will be restocked to our Munich or US warehouses before final delivery, as detailed in the "Important Notice" above.

4. Customs and Taxes

4.1 How are customs handled by OpenELAB for import or export?

For EU Member States: Whether shipped from Germany or China, we cover all import duties and taxes (DDP), ensuring that you receive your package without any additional costs or hassle with customs.

Important Exception for Non-EU Countries (e.g., Switzerland, Norway):
For countries outside of the European Union, such as Switzerland and Norway, you may be subject to import duties, taxes, and/or customs fees charged upon delivery. These fees vary from country to country and are the sole responsibility of the recipient.

⚠️ Refusal of Delivery: If you refuse to pay these fees upon delivery and the package is returned to us, the refund amount will be calculated after deducting the original shipping costs, return shipping costs, and any applicable customs or storage fees.

4.2 How is VAT charged when the Customer places an order from OpenELAB?

In accordance with the newest VAT e-commerce rules in the EU, OpenELAB shall have the right to charge the amount of VAT at checkout. The standard rate of actual VAT applied is subject to the destination country's regulations. No additional VAT will be charged upon delivery for these orders.