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BLUETTI B300K Expansion Battery
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BLUETTI B300K Expansion Battery | 2,764.8Wh

in Bluetti

$2,879.66 NZD (Including GST)

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Description

BLUETTI B300K Expansion Battery | 2,764.8Wh

Massive Power. Endless Possibilities. One Battery to Rule Your Backup.

When the grid goes quiet, the BLUETTI B300K keeps your world running. Packing a colossal 2,764.8Wh LiFePOâ‚„ battery, this expansion powerhouse is built to supercharge the runtime of your compatible BLUETTI power station whether you are riding out a storm at home, chasing the horizon in your RV, or living life completely off the grid in New Zealand.

2,764.8Wh of Pure Staying Power

Don’t just survive the outage barely notice it. The B300K delivers serious capacity to keep the essentials humming: fridges, freezers, fans, lights, Wi-Fi routers, power tools, and everyday devices. Long blackouts and extended off-grid stretches? Handled.

Expand Your BLUETTI. Scale Your Freedom.

Plug in and power up. The B300K connects seamlessly with compatible BLUETTI power stations, including the AC300 series, letting you grow your energy reserves exactly when your lifestyle demands it. Perfect for home backup today, mobile adventures tomorrow.

Soak Up the Sun

Pair the B300K with a compatible BLUETTI system and harness efficient solar charging to cut the cord on grid dependence. It’s the smart heart of any solar setup from cabins and campervans to fully off-grid homes.

Standalone? No Problem.

The B300K isn’t just a sidekick. With built-in USB ports and a 12V DC output, it can fly solo to charge phones, run small devices, and keep you connected no power station required.

Built to Last 3,500+ Cycles

Engineered with advanced LiFePOâ‚„ cells, the B300K is rated for over 3,500 charge cycles with rock-solid safety and stable performance. This is a battery built for years of hard, reliable use.

Tough Enough for Anywhere

Big on capacity, smart on portability. Whether it’s van life, marathon camping trips, remote worksites, or whole-home resilience, the B300K shows up ready to work.

Perfect For

  • Expanding home backup systems
  • RV, van life & off-grid living
  • Long camping trips
  • Powering multiple devices for hours on end
  • Solar storage setups
Product Overview

Product Overview

Power Expansion for Every Situation

The B300K adapts to your life, whether you’re safeguarding your home during outages or powering an off-grid adventure. Stack multiple B300K batteries, or mix and match with B300, and B300S models for a customized energy solution that ensures you’re never caught without power, no matter where you are.
*Need P150D to P090D cable to connect the AC500.

Great Compatibility for More Possibilities

The B300K seamlessly integrates with AC200L, AC200MAX, AC300, Apex 300 and AC500* power stations, giving you the flexibility to scale your energy setup as your needs grow. Whether you’re prepping for more power at home or gearing up for your next adventure, the B300K has you covered.

* A P090D to P150D cable is required for connecting with AC500 and sold separately.

Built to Protect, Designed to Last

The B300K is designed to excel in safety and reliability. Featuring square LiFePOâ‚„ batteries and cutting-edge AI-BMS technology, together with a robust aluminum casing, advanced wireless components, and efficient cooling fan ensure this battery stands the test of time, giving you a power source you can count on in any situation.

Fast Charging Comes in Handy

When paired with the AC300 or AC500, this battery charges up to 80% in just 45 minutes, so you can get back to what matters without any significant interruption, your work, activities, or emergencies …whether you’re at home or on the go.

A Standalone Power Source, A Standout Performance

The B300K isn’t just an add-on; it’s also a versatile power hub. With a USB-A port, it’s perfect for keeping your essentials like smartphones, tablets, or fans charged, whether you’re ready to make an urgent call or message, eager to share beautiful moments with your friends, or try to stay cool while camping in a tent. Power is always within reach, wherever life takes you.

Tech Specs

Tech Specs

Tech Specs

B300K

FAQs

FAQs

Q1: How to claim warranty?

Once you receive your product, please register to claim your warranty on our website.

Q2: Why doesn’t the B300K drain all its power?

The B300K retains a portion of its energy to prevent overdischarging, which helps protect the battery’s lifespan and ensures long-term performance.

Q3: Can I leave the battery uncharged after fully discharging?

No, it’s important to recharge the B300K in time before the SoC drops to 1% to avoid potential damage. Additionally, ensure it’s placed in an environment of at least 10°C (50°F) for at least 12 hours before recharging.

Q4: Which BLUETTI power stations can work with B300K?

B300K is compatible with AC200L, AC200MAX, AC300, and AC500. When connecting to AC500, the P090D to P150D cable is required for connecting with AC500 and sold separately.

Q5: Can I use the B300K alone?

Yes. B300K is a standalone power source with a 12W USB-A port.

Note: The B300K can only be charged by connecting to the AC500/AC300/AC200L/AC200MAX

Q6: Does the B300K support power bank mode?

No.

Q7: How many B300K batteries can l connect with AC300? Can l mix B300K/B300/B300S?

The AC300 supports connecting with up to 4 B300 / B300K using the P090A cable.

Note: The AC300 can mix and match with B300 and B300K. However, it cannot connect B300, B300K, and B300S batteries simultaneously.

Q8: How many B300K batteries can l connect with AC500? Can l mix B300K/B300/B300S ?

The AC500 supports up to 6 B300K. The P150D to P090A cable is required for connecting the AC500 with B300K or B300K with B300S.

The AC500 can mix and match with B300, B300S, and B300K, with up to 6 total battery packs.

Note: For the combo with one AC500 unit, if B300 is included, up to 4 battery packs can be connected; if not, up to 6 packs can be connected.

Q9: How many B300K batteries can l connect with AC200L? Can l mix B300K/B300/B230/B210 ?

The AC200L supports up to 2 B300K for up to 7,577.6Wh capacity using the P090D cable.

Note: AC200L can only mix with B300 and B300K.

Q10: How many B300K batteries can l connect with AC200MAX? Can l mix B300K/B300/B230/B210 ?

AC200MAX supports up to 2 B300K for up to 7577.6Wh capacity using the P090D cable.

Q11: How long does it take to charge the B300K to 80%?

Connecting with AC300 / AC500, you can charge the B300K to 80% in 45 minutes using a 30A charging cable.

Note: For reference ONLY.

Q12: Can one AC200MAX expansion port connect to the B300K and the other to the B230/B210?

Yes, you can.

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