BLUETTI KIT Apex 300 (AC380)&B500K2, 3840 W 7.88 kWh Power station

BLUETTI Apex 300 + B500K Expansion Battery Bundle

Overview

The BLUETTI Apex 300 power pack combined with the B500K expansion battery offers a scalable, high-performance energy solution for home backup, off-grid power, and RV applications. With a base capacity of 2,764.8Wh, expandable to 58kWh, and a combined continuous output of up to 11.52kW, this bundle ensures reliable power wherever and whenever you need it.

Key Benefits

• Expandable Capacity – Combine the Apex 300 with B500K for easy storage expansion
• High Output Power – Continuous output up to 3,840W (Apex 300), expandable to 11.52kW when used in parallel
• Fast UPS Backup – 20ms switching for uninterrupted operation
• Hot-Swappable Batteries – Simple plug-and-play operation
• Compact and High Density Design – Industry-leading power-to-size ratio

Smart Energy Ecosystem

Home Backup Off-Grid Power RV Solution • 1–7 days backup (Hub A1 + B500K/B300K)
• Smart load optimization (S1 Plug)
• SolarX 4K efficiency • Solar input 4–19.2kW
• Expandable storage with B500K modules
• Mobile cart system • Complete DC solution (Hub D1)
• Dual charging (Charger 1 + Solar)
• Expandable battery for adventures

Power Performance

• Base Capacity: 2,764.8Wh (Apex 300)
• Extended Capacity: 7,884.8Wh with one B500K
• Continuous Output: 3,840W (Apex 300)
• Peak Power: 7,680W

Key Features

• Partial Home Backup – Keeps essential appliances running during power outages
• Whole-Home Upgrade – Expand capacity in minutes with B500K
• RV Integration – Powers AC appliances like air conditioners and ovens
• SolarX 4K Charging – Supports 4–19.2kW solar input
• Scalable Storage – Connect multiple B500Ks for longer autonomy

Technical Specifications

Battery (Apex 300) 2,764.8Wh LiFePO4 (51.2V/54Ah) Battery (B500K) 5,120Wh LiFePO4 (58.4V, 90A Max) Weight Apex 300: 38kg | B500K: 45kg Dimensions Apex 300: 525×327×320mm | B500K: 520×327×308.5mm AC Output 3,840W Max • 3×230V AC • 1×50A P050A AC Input 2,300W standard • 3,840W Max (with Hub A1) DC Input 2×XT60PM-M (1,200W/port) Charging AC+DC: 3,840W Max • 80% in 45 min (15–25°C) Operating Temperature Charging: 0°C–40°C | Discharging: -20°C–40°C Enclosure Rating (B500K) IP20

Package Contents

Apex 300

• Apex 300 Power Station
• AC Charging Cable (180 cm)
• Car Charger Cable (73.5 cm)
• Ground Screw (M5×10)
• Documentation

B500K Expansion Battery

• B500K Expansion Battery ×1
• CA90 Cable ×1
• User Manual ×1

FAQ

Can multiple B500K batteries be connected?
Yes, multiple B500K units can be connected to achieve a capacity of approximately 100kWh.

Is the B500K compatible with other BLUETTI stations?
No, this kit is exclusive to Apex 300.

Does it support pass-through charging?
Yes, when connected to Apex 300, it supports simultaneous charging and discharging.