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23 July 2026
[Scalable Capacity Expansion] – 5120Wh per pack with 4,000+ cycles to 80% capacity. Expand up to 6 B500K per Apex 300. 3 Apex 300 with 18 B500Ks achieve an incredible 100kWh capacity. [Widely Compatible] – B500K works with past and future BLUETTI portable power station including AC200L AC200MAX AC300 AC500 and Apex 300. This listing includes the CA90 cable (compatible only with Apex 300). [Next-Gen Design Architecture 2.0] – The B500K expansion battery bulit with a cable-free internal layout, wireless internal structure lowers failure risks and saves space, resulting in a more compact, easy-to-move product. [Usage Ecosystem] – Beyond capacity expansion, the B500K works with BLUETTI accessories for versatile charging and discharging: SolarX 4K (4000W), Alternator Charger (560-1000W), Hub D1.
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23 July 2026
[3600Wh High Capacity. [3600Wh high capacity. 6000W Output]– It has a capacity of 3600Wh and provides 4 AC output, 3000W(Surge 6000W), 4 USB-A output and 2 100W fast USB-C output. Supports more than 99% of appliances such as air conditioners, heaters and coffee machines. ].
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23 July 2026
[All-Scenario Power] – Apex 300 (2764.8Wh, 3840W) keeps homes lit, RVs rolling & off-grid sites running. Parallel 2-3 units (5.5-8.3kWh), expand to 58kWh with B300K. [Direct Plug & Play] – Apex 300’s 6 AC outputs directly power RV ovens and ACs indoors. No shore hookup needed—7680W surge handles heavy loads effortlessly. [Dual-Voltage Power] – Apex 300 delivers 120V/240V simultaneous output, powering refrigerators, AC units, and EV chargers at once. [Unstoppable Power] – BLUETTI’s 2nd-gen LiFePO4 battery delivers 6,000+ cycles (80% capacity), 17-year lifespan. CNAS-certified, 33 extreme tests ensure reliability in any weather.
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23 July 2026
[Energy Independence] – Apex 300 power station, B500K expansion battery (7.8kWh, 3840W, 7680W surge) delivers off-grid power for essentials, lights, and devices. Ideal for cabins, camping, and backup. [Direct Plug & Play] – Run AC appliances instantly! Apex 300’s 6 AC outputs directly power RV ovens and ACs indoors. No shore hookup needed—7680W surge handles heavy loads effortlessly. [Multi-Charging Options] – Apex 300 supports solar (2400W built-in, 6400W expanded), AC (80% in 45min), and generator (95% compatible) charging for flexible, rapid power restoration. [Unstoppable Power] – BLUETTI’s 2nd-gen LiFePO4 battery delivers 6,000+ cycles (80% capacity), 17-year lifespan. CNAS-certified, 33 extreme tests ensure reliability in any weather.
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23 July 2026
With a maximum input power of 601-700W and a battery capacity of 5120Wh, this expansion battery is compatible with various Bluetti models such as AC200L, AC300, and Apex300. The smart module technology and MPPT charging mode ensure efficient power usage and charging.
