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BLUETTI · Expansion battery

BLUETTI B500K (Apex 300 connector)

Current model

BLUETTI B500K (Apex 300 connector): 5,120 Wh expansion battery. Check the required station and connection cable.

Capacity
5,120 Wh
Works with
Apex 300
Sale 1,789 USD · Regular 1,999 USD

Selected configuration: B500K for Apex 300

Exact model / SKU

B500K2-UN-GY-SPFUS-00 · 47893756903643

Check current USD price and availability at BLUETTI. Merchant checkout confirms the selected configuration.

Seller prices, financing, promotions, shipping and returns are set by the merchant. Manufacturer warranties follow the exact product and purchase terms.

Facts reviewed 2026-09-24

Information still to verify
  • A matched manual or download has not yet been verified for this market.
  • The complete box contents for the selected configuration have not yet been verified. Confirm included cables and adapters with the seller.
  • Warranty duration and regional purchase conditions have not yet been verified. Check the manufacturer’s terms for the selected seller and market.

Heeler RV may earn a commission from qualifying purchases through marked seller links. As an Amazon Associate I earn from qualifying purchases.

Full Specs

Specifications apply to the stated market and configuration. Expanded-system figures require the named additional equipment.

Capacity
5,120 Wh single batteryBLUETTI B500K (Apex 300 connector) US exact specification
Overview & limitations
Purpose
A 5,120 Wh BLUETTI expansion battery. Choose the cable configuration for the receiving AC200L/AC300 or Apex system; this battery is not a standalone AC inverter.BLUETTI source ↗ · reviewed 2026-09-24
Battery
Single-battery capacity
5,120 WhBLUETTI source ↗ · reviewed 2026-09-24
Configurations & compatibility
Cable configuration
The receiving station and required battery cable determine compatibility. Expanded-system capacity advertised elsewhere requires additional equipment.BLUETTI source ↗ · reviewed 2026-09-24

Verified compatible accessories