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OUKITEL B2000 Battery Power Station
OUKITEL B2000 2048Wh Expansion Battery
OUKITEL B2000 Home Battery
OUKITEL BP2000+B2000 Portable Battery Generators
OUKITEL BP2000+2*B2000 Home Battery Backup

OUKITEL B2000 Expansion Battery | 2048Wh

Sale price€1.099,00 Regular price €1.399,00 - €300
Tax included. Shipping calculated at checkout.
  • Fast (7-10 days), delivery from Germany

  • Combine With BP2000 To Use
  • 2,048Wh LiFePO4 battery for over 3,500 life cycles
  • Expansion battery for BP2000
  • Standalone portable power station
  • A 100W USB-C, a 12W USB-A, a DC 12V/10A cigarette lighter port, a DC 48V/15A port
  • Note:  The adapter need to be purchased separately.

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oukitel power station oukitel solar generator

Versatile Power Outputs

More than just an expansion battery, the B2000 can power your smartphones, laptops, fans, and so on with specific output ports.

Expandable Battery Capacity

As the expandable battery to BP2000, B2000 has a capacity of 2,048Wh with 3,500+ cycles battery. Connect up to 7 x B2000 with BP2000, you'll get 16,384Wh, enough to get you through a severe power outage.

Perfect Off-Grid Life Companion

B2000 is portable and safe to use, it can serve as a backup power supply for your home, camping trips, RV life, and so on. Just put it in your home or trunk, and all you need to do is enjoy the good times.

B2000 Expansion Battery




2048Wh (51.2V, 40Ah)

Battery Type

LiFePO4(Lithium Iron Phosphate)

Life Cycles

3,500+ Cycles to 80% Original Capacity

Management System

MPPT Controller, BMS, etc

Inverter Type

Pure Sine Wave

USB-C Port

1* PD100W

USB-A Port

1x12W (5V/2.4A) USB-A

12V DC Outlet

1 x 12V/10A (Car Outlet)

AC Input


Solar Input

Max.200W(MPPT), 12-48V/10A, 1*XT60 Port

Car Input

12V/8A, 24V/10A

Net Weight


Dimensions (LxWxH)

18.7x11.65x9.51in (47.4x29.5x24.15cm)

Operating Temperature


Storage Temperature





1+2 Years(Subscribed)

What’s in the box?

1.Oukitel B2000 Expansion Battery        2.Parallel Connection        3.Solar Charging Cable        4.Car Charging Cable        5.User Manual

User Manual

OUKITEL B2000-EU Expansion Battery | 2048Wh User Manual

Download Now >



When you connect the B2000 with BP2000, the B2000's DC socket can not be used.

Up to 7 x B2000 for 16384Wh huge capacity.

Certainly, B2000 has a 100W USB-C, a USB-A, and a 12V car socket, support for phones, laptops, car refrigerators, etc.



Yes, you can. The solar array must meet:
1. MC4 connectors
2. Total open circuit voltage(Voc) falls in the range of 12-48V/MAX.10A

No, B2000 just could be charged with one method due to there is only one inlet on the battery module.

Please turn off the product and place it in a dry environment. Do not place this product near water. And we recommend using the product every three months (run out the remain power first and recharge it to the percentage you want, such as 50%).

Customer Reviews

Based on 5 reviews
Good product

Fast shipping, excellent product quality.

Rolf Teske
SUPER - Macht einen wertigen und robusten Eindruck bei schneller problemloser Lieferung+++++

Nachdem anfänglich 2 Basisstationen BP 2000 geliefert und dies nicht sofort bemerkt wurde, konnte nach Kontaktaufnahme das "Versehen" geheilt werden, indem nach Zusendung eines Rücksendeetiketts der Rücktransport und eine gleichzeitige Zusendung der Erweiterungbatterie P2000 erfolgte !
D A N K E.
Super-fest und sicher (doppelt in fester Kartonage und Leistenschutz) verpackt, kamen 2 dicke/fette/schwere Pakete und ein kl. Päckchen ( zusätzliches extra Ladegerät) an, die Postfrau mußte unterstützt werden, insgesamt ca. 50 kg!!!
Nach Akklimation, Verbindung untereinander (alle notwendigen Stecker, Kabel und Verbinder dabei) und einschalten sofort startklar und erkennen untereinander wraren noch ca. 40% Ladung abzulesen. Gebrauchsanleitung und Schnellstartkarte waren dabei (mehrsprachig, auch in deutsch). Werden dann an mein Balkonsolarkraftwerk angeschlossen und in mein Hausnetz eingebunden. Ein 2. Zusatzakku wurde nachbestellt und ist auch schon da, alles versandkostenfrei! So das ich jetzt gut 6Kwh Speicherkapazität habe und überschüssigen Solarstrom abspeichern kann.

U N K L A R und schlecht kommuniziert ist die Garantie- und Gewährleistungszeit, welche mit 1, 2 oder 3(Website) Jahren nicht eindeutig für den Endverbraucher dargestellt wird!
Eine Hilfestellung oder nachträglich eindeutige Zusage wäre da seeehr hilfreich, um auch dahingehend auf der sicheren Seite zu sein, denn allein die Angabe von ca. 3000 Ladezyklen ist da etwas sehr mager!!!
Ansonsten kann ich die Fa. OUKITEL in Preis, Leistung und Qualität nur weiter empfehlen....

Renato Maggiore
batteria di espansione OUKITEL B2000

Ho acquistato la batteria di espansione per avere come progettato un sistema più capiente per utilizzarlo senza scaricare eccessivamente le batterie ogni volta.
Anche in questo caso come nel primo ordine la spedizione è stata rapida e l'imballaggio molto curato.
Il contenuto è completo dei cavi necessari e la facilità di utilizzo è ottima.

very good concept, only two addons needed

I like the idea of the BS2000 and B2000 expansion for establixhing a home battery system. If the BS2000 could be a little more silent and would have a communication interface (e.g. for Homeassistant and other), the whole system could be perfect. A little firmware upgrade and an external interface couldsolve this, so i look further on the forthcoming development.

Cristian Sandulescu
perfect expansion system 5*+!

I have bp2000 main unit, i expended with 3xb2000 (for the moment). It is a very smuth system, it is like one, i works perfectly, i m happy that i will be able to expand more. It balances itself with the % off battery, very efficient and simple!

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