# Bluetti B300K Expansion Battery Module 2764.8 Wh LiFePO4 for Power Stations

**URL:** https://aio.lv/en/product--bluetti-b300k2--12737504
**Data updated:** 2026-10-23 04:16 (EEST)
**Category:** Other goods
**Manufacturer:** Bluetti
**Manufacturer code:** B300K2
**EAN:** 6978341874045
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 573.95 €
**Prices and availability valid until:** 2026-11-24 23:59
**Price without VAT (21%):** 1 300.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bluetti-b300k2--12737504

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Thursday | free |
| Courier delivery to door | 03.11.2026 | 53.99 EUR |

## Summary description

Bluetti B300K expansion battery module with 2764.8 Wh capacity and LiFePO4 chemistry. Designed to extend the runtime of compatible power stations. Features 4000+ charge cycles, AI-BMS system, and a 12 W USB-A port.

## Long description

The Bluetti B300K Expansion Battery Module is a modular energy storage solution designed to increase the runtime of compatible Bluetti power stations. Utilizing automotive-grade LiFePO4 battery cells and an integrated AI-BMS system, this unit provides reliable and safe energy storage for home backup, outdoor activities, and off-grid use. With a capacity of 2764.8 Wh, it allows users to significantly extend their power availability during outages or while traveling in a camper.
Advantages
This expansion battery utilizes durable lithium iron phosphate cells that support over 4000 charge cycles while retaining up to 80 percent of their original capacity. The built-in AI-BMS battery management system continuously monitors and regulates charging and discharging for enhanced safety and performance. Additionally, the unit features a 12 W USB-A port, allowing it to function as a standalone power source for small electronic devices such as smartphones or tablets.
Suitable for
Home backup power during extended electrical outages
Energy storage for RVs and campers
Remote work and off-grid living locations
Outdoor events requiring extended power station runtime
When it may not be suitable
This device cannot be charged directly from solar panels or a car cigarette lighter socket, as it must be connected to a compatible power station for charging. Furthermore, weighing approximately 29.5 kg, it is not designed for frequent portability or carrying on the go.
Key specifications
Battery capacity: 2764.8 Wh (51.2 V, 54 Ah)
Battery chemistry: LiFePO4 (lithium iron phosphate)
Cycle life: 4000+ cycles to 80% capacity
USB-A output: 12 W max (5 V / 2.4 A)
Expansion ports: 2 units (max. 58.4 V DC, 90 A)
Maximum charging current: 60 A
Maximum discharge current: 70 A
Operating humidity range: 5–95% RH
Dimensions: 525 × 327 × 209 mm
Weight: ~29.5 kg
How to use
To use the expansion module, connect it to a compatible Bluetti power station using the provided expansion cable. Ensure that the power station is turned off before making the connection. Once securely connected, the power station will recognize the additional battery capacity, increasing your total available energy. To charge the unit, connect it to the compatible power station and charge the entire system through the power station's standard charging inputs.
What to consider before purchase
Verify compatibility with your specific Bluetti power station model
Note that certain models may require an additional specific connection cable
Consider the weight and stationary nature of the device before planning mobile use
Remember that direct charging via solar or car outlets is not supported independently
Usage recommendations
Always verify that the correct expansion cable is used for your specific power station model and ensure the unit is kept within the recommended operating humidity and temperature ranges for optimal lifespan.

## FAQ

### How much does the Bluetti B300K Expansion Battery Module LiFePO4 cost, and is it available for purchase?

The price is 1,573.95 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Thursday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can Bluetti B300K Expansion Battery Module LiFePO4 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Bluetti products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Bluetti service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12737504/70711801_large.webp