Where can I see shipping options?

Available shipping options, charges and estimated delivery terms are shown during checkout.

Where can I find the return policy?

See the store Returns and Refunds page for the terms that apply to your order.

How can I track my order?

Use the Track Order page with your order number or tracking number to see real-time status updates.

How much does BLUETTI B500K EXPANSION Battery | 5120WH cost?

BLUETTI B500K EXPANSION Battery | 5120WH costs $4499.00 NZD at outvolt.

Where can I buy BLUETTI B500K EXPANSION Battery | 5120WH?

BLUETTI B500K EXPANSION Battery | 5120WH is listed directly at outvolt: https://outervolt.com/products/prod-mp4v88e1zwfw/. Delivery options and charges are shown during checkout.

Is BLUETTI B500K EXPANSION Battery | 5120WH in stock?

BLUETTI B500K EXPANSION Battery | 5120WH is currently shown as in stock at outvolt. Availability is confirmed when the order is processed.

outvolt

Method	Delivery Time	Cost
Shipping	Shown during checkout	Calculated at checkout
Returns	See store policy	Terms vary by store

Why Choose BLUETTI B500K?

Extend Your Backup Time

From outage protection to camping trips and off-grid working, the B500K keeps you powered for longer — more freedom and peace of mind.

Home Backup

Camping

Up to 100 kWh Massive Expansion

Increase your energy storage as needed, from 5.12 kWh to over 100 kWh*. The B500K battery is compatible with various BLUETTI power stations for easy, cost-effective upgrades. *Note：Achieved with 3*Apex 300 + 18*B500K units

Adapt to All Your Needs

The B500K either expands your BLUETTI power stations or serves as a high-capacity power bank with ecosystem components, delivering 700 W DC output for your devices. Note: P090D to P150D cable is required for connecting with AC500 and sold separately.

Home & Off-Grid: Harvest up to 4,000 W solar with SolarX 4K.

Mobile Charging: Charge from your car and solar at 1,000 W with the Alternator Charger.

DC Power Supply: Connect to Hub D1 for 700 W Max DC power.

Made It Safe, Reliable, and Long-lasting

The B500K adopts advanced LiFePO₄ batteries for over a decade of safe use. Its third-gen wireless internal design and efficient cooling fan ensure stable performance, even in challenging conditions.

Fixed or Movable Setup

Secure the B500K to the wall or rack of your home or RV using its mounting holes, or attach it to the Foldable Trolley 2* for a mobile power supply. *Note： Fordable Trolley 2 sold separately.