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Bluetti B300K Expansion Battery 2764.8Wh front view high-capacity power storage
Bluetti

Bluetti B300K Expansion Battery | 2,764.8Wh

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Power That Keeps Up With You – B300K Expansion Battery

Sick of half-baked power setups letting you down?

The B300K Expansion Battery smashes that worry out the park with 2,764.8Wh of serious juice and over 4,000 life cycles built to go the distance.

Whether you're off-grid, stuck in a blackout, or just want the backup muscle to keep the beers cold and the lights on, this little ripper’s got your back.

Built tough with automotive-grade LiFePO₄ cells and smart BMS tech, it charges fast and hooks up easily to plenty of units including the AC200L, AC300, or AC500.

Built to Last and Built for Legends – Bluetti B300K Battery

Ever wished you could stack your power like you stack your beers? Now you can.

The Bluetti B300K Battery doesn't just sit there looking pretty – it’s a real workhorse, with a massive lifespan and smart expansion options to keep your adventures rolling.

You can mix and match it with B300, B300S models, and pile up enough power to last longer than your average camping trip.

Plus, with a solid aluminium shell and advanced AI battery management, it’s engineered to cop a flogging and still come back for more.

Click Add to Cart now and make dead batteries one less thing you’ll have to think about.

 Add To Cart Side view of Bluetti B300K Expansion Battery 2764.8Wh with advanced power technology

Key Features

  • Massive 2,764.8Wh capacity for serious power needs
  • 4,000+ cycles for years of weekend getaways
  • Automotive-grade LiFePO₄ battery for rugged reliability
  • Fast charges up to 80% in 45 minutes with AC500
  • Standalone USB-A port to top up essentials
  • Expandable – link up to 16,588Wh with AC500
  • Safe as houses with smart AI-BMS tech and tough build
  • Comes with expansion cable and manual – ready to go
 Bluetti B300K modular expansion battery stack, fast charging, and compatibility with AC200L, AC300, AC500 power stations

Bluetti B300K Specs

BATTERY INFO

  • Capacity: 2,764.8Wh (51.2V, 54Ah)
  • Type: LiFePO₄ (Lithium Iron Phosphate)
  • Life Cycles: 4,000+ Cycles to 80% Original Capacity

OUTPUT

  • USB-A Port: 12W Max., 5V / 2.4A
 Bluetti B300K Expansion Battery 2764.8Wh front view high-capacity power storage

GENERAL

  • Weight: Approx. 29.5kg (65.04lbs)
  • Dimensions (L x W x D): 525 × 327 × 209mm (20.67 × 12.87 × 8.23in)
  • Charging Temperature: 0°C to 40°C (32°F to 104°F)
  • Discharging Temperature: -20°C to 40°C (-4°F to 104°F)
  • Storage Temperature:
  • – Up to 1 month: -20°C to 40°C (-4°F to 104°F)
  • – Up to 6 months: -20°C to 25°C (-4°F to 77°F)
  • Working Humidity: 5% to 95%RH
  • Charging Current: 60A Max. (Current may decrease outside specified temperatures)
  • Discharging Current: 70A Max.
  • Expansion Ports: 2 × 58.4VDC Max., 90A Max.
  • Warranty: 4 Years
 Side angle of Bluetti B300K Expansion Battery 2764.8Wh for flexible power solutions

What's Included

Everything you need is included with your purchase from True Gear
  • Bluetti B300K Expansion Battery
  • Battery Expansion Cable (P090A)
  • User Manual
  • Warranty Card
  • 5-Year Manufacturer Warranty
  • 90 Day Free Trial

Download the Bluetti B300K manual

Looking for detailed information on the Bluetti B300K? Then check out the complete manual below.

 Bluetti B300K Manual PDF

Read Bluetti B300K reviews down below ↓
Order Confirmation and Dispatch

Got your eye on something? Awesome! Once you've placed your order, we’ll get to work. We’re usually able to fulfill orders within 1-2 business day, however, this does vary depending on the warehouse so please allow up to 3 business days. Once it’s on its way, we'll ping you with a shipping confirmation email within 24 hours of dispatch and a tracking number.

Got questions or need an update? No problem! Reach out to us at 1300 241 251 or gday@truegear.com.au.

General Delivery Timeframes

While delivery timeframes vary depending on your location and item ordered, you can generally expect your package to arrive within the timeframe below.

  • 2-5 Business Days - Adelaide, Brisbane, Canberra, Melbourne Sydney Metro
  • 3-8 Business Days - Other Major Cities & NSW, QLD, SA, VIC Regional
  • 7-12 Working Days - NT, TAS, WA, QLD Remote
Free Delivery

We've got great news for our Aussie customers – shipping is on us! That’s right, FREE shipping on most orders, making shopping with us even sweeter.

Some very remote regions of Australia might not be possible with our couriers, go ahead and place your order - and if it's flagged we'll be in touch.

Restricted Free Delivery Zones

Sometimes packages can be quite heavy/large and transporting it to your doorstep, depending on where you live in this vast country of ours, might be difficult. In that case we will get in touch after you place your order and discuss delivery to your nearest depot. If it doesn't make sense then no harm done, we'll refund the order.

90 Day's Free and Easy Returns

If you're not absolutely smitten with your purchase? No stress! You've got 90 days to decide if it's a keeper. If not, sending it back is a cinch. Send it back to us and send us the bill for postage while you're at it! Love it or return it for FREE– it's that simple! Just make sure the item and the packaging are in tip-top shape.

In rare cases, return delivery is over $200, in that case you will receive a $200 credit towards your shipping costs.

Other Terms and Conditions

If you miss the delivery, no worries! You may need to pick up your item(s) from the freight company's depot. We can arrange re-delivery to your home, but please note this will incur a small extra cost.

While we cannot pinpoint the exact time and date of delivery since it's out of our hands, you'll receive an email with tracking details. This way, you can contact the freight company directly for more accurate timing.

Please let us know if:

  • Someone will be available to sign for the delivery.
  • There's a safe spot to leave the item if no one will be home.
  • The address is a business location; we will need the business hours and the name of the building.
  • You notice any damage. If so, make a note when signing for the delivery or refuse to accept it. If you do accept delivery, immediately snap some photos of the damaged packaging or products with your smartphone or camera. If your item(s) arrive damaged, please send the photos to support@compactco.com.au and visit our returns page to lodge your return claim.

There you have it, everything you need to shop with confidence and a smile! 😊

7 Reasons to Shop with True Gear

From the first hello to the last goodbye, we'll make sure you're looked after and 100% satisfied with everything that you purchased. Here's why shopping with us is not only a smart choice but also a breeze!

___________________

#1 90 Day Trial - Free Returns on Us

Gave it a go, but your new gear’s just not the right fit? No worries! We’ve got your back with absolutely no hidden fees, and we’ll even cover your return shipping up to $200 (which is pretty much everything). Just make sure it’s in the same condition you received it, and we’ll handle the rest—easy as!

#2 Free Shipping Australia-Wide

Get your compact gear delivered for free, no matter where you are in Australia. We know you love a good deal, and free shipping makes it even sweeter!

#3 Aussie Family Owned

We’re not some giant faceless company. True Gear is 100% Australian-owned and run by people who understand our great outdoors.

#4 24/7 Aussie Call Support

Have a question at 3 AM? No dramas! Our Aussie-based team is here to help you around the clock, so you’re never left hanging.

#5 Secure Checkout

Shop with peace of mind. Our checkout is SSL encrypted, ensuring your details are protected and confidential every step of the way. Easy, fast and 100% safe!

#6 5 Star Customer Support

Our customers reckon we’re pretty awesome! We pride ourselves on 5-star customer service, so you know you’re in good hands when you shop with us.

“Customer service was stellar, constant communication with the owner was a highlight. As a business owner, this level of engagement speaks volumes. Cheers to future business!”

#7 Giving Back – We Plant Trees

We believe in doing our bit for the planet. Every month, we plant trees to help offset carbon emissions and make our world greener. Shop with us and be part of something bigger.

___________________

So hit the checkout and buy your gear today. It's time to break out of the ordinary, with True Gear by your side. Here's to living big from small spaces!

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"Fantastic pricing, efficient shipping and great communication, could not ask for more..." -- Warren M., 26/10
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Power That Keeps Up With You – B300K Expansion Battery

Sick of half-baked power setups letting you down?

The B300K Expansion Battery smashes that worry out the park with 2,764.8Wh of serious juice and over 4,000 life cycles built to go the distance.

Whether you're off-grid, stuck in a blackout, or just want the backup muscle to keep the beers cold and the lights on, this little ripper’s got your back.

Built tough with automotive-grade LiFePO₄ cells and smart BMS tech, it charges fast and hooks up easily to plenty of units including the AC200L, AC300, or AC500.

Built to Last and Built for Legends – Bluetti B300K Battery

Ever wished you could stack your power like you stack your beers? Now you can.

The Bluetti B300K Battery doesn't just sit there looking pretty – it’s a real workhorse, with a massive lifespan and smart expansion options to keep your adventures rolling.

You can mix and match it with B300, B300S models, and pile up enough power to last longer than your average camping trip.

Plus, with a solid aluminium shell and advanced AI battery management, it’s engineered to cop a flogging and still come back for more.

Click Add to Cart now and make dead batteries one less thing you’ll have to think about.

 Add To Cart Side view of Bluetti B300K Expansion Battery 2764.8Wh with advanced power technology

Key Features

  • Massive 2,764.8Wh capacity for serious power needs
  • 4,000+ cycles for years of weekend getaways
  • Automotive-grade LiFePO₄ battery for rugged reliability
  • Fast charges up to 80% in 45 minutes with AC500
  • Standalone USB-A port to top up essentials
  • Expandable – link up to 16,588Wh with AC500
  • Safe as houses with smart AI-BMS tech and tough build
  • Comes with expansion cable and manual – ready to go
 Bluetti B300K modular expansion battery stack, fast charging, and compatibility with AC200L, AC300, AC500 power stations

Bluetti B300K Specs

BATTERY INFO

  • Capacity: 2,764.8Wh (51.2V, 54Ah)
  • Type: LiFePO₄ (Lithium Iron Phosphate)
  • Life Cycles: 4,000+ Cycles to 80% Original Capacity

OUTPUT

  • USB-A Port: 12W Max., 5V / 2.4A
 Bluetti B300K Expansion Battery 2764.8Wh front view high-capacity power storage

GENERAL

  • Weight: Approx. 29.5kg (65.04lbs)
  • Dimensions (L x W x D): 525 × 327 × 209mm (20.67 × 12.87 × 8.23in)
  • Charging Temperature: 0°C to 40°C (32°F to 104°F)
  • Discharging Temperature: -20°C to 40°C (-4°F to 104°F)
  • Storage Temperature:
  • – Up to 1 month: -20°C to 40°C (-4°F to 104°F)
  • – Up to 6 months: -20°C to 25°C (-4°F to 77°F)
  • Working Humidity: 5% to 95%RH
  • Charging Current: 60A Max. (Current may decrease outside specified temperatures)
  • Discharging Current: 70A Max.
  • Expansion Ports: 2 × 58.4VDC Max., 90A Max.
  • Warranty: 4 Years
 Side angle of Bluetti B300K Expansion Battery 2764.8Wh for flexible power solutions

What's Included

Everything you need is included with your purchase from True Gear
  • Bluetti B300K Expansion Battery
  • Battery Expansion Cable (P090A)
  • User Manual
  • Warranty Card
  • 5-Year Manufacturer Warranty
  • 90 Day Free Trial

Download the Bluetti B300K manual

Looking for detailed information on the Bluetti B300K? Then check out the complete manual below.

 Bluetti B300K Manual PDF

Read Bluetti B300K reviews down below ↓
Order Confirmation and Dispatch

Got your eye on something? Awesome! Once you've placed your order, we’ll get to work. We’re usually able to fulfill orders within 1-2 business day, however, this does vary depending on the warehouse so please allow up to 3 business days. Once it’s on its way, we'll ping you with a shipping confirmation email within 24 hours of dispatch and a tracking number.

Got questions or need an update? No problem! Reach out to us at 1300 241 251 or gday@truegear.com.au.

General Delivery Timeframes

While delivery timeframes vary depending on your location and item ordered, you can generally expect your package to arrive within the timeframe below.

  • 2-5 Business Days - Adelaide, Brisbane, Canberra, Melbourne Sydney Metro
  • 3-8 Business Days - Other Major Cities & NSW, QLD, SA, VIC Regional
  • 7-12 Working Days - NT, TAS, WA, QLD Remote
Free Delivery

We've got great news for our Aussie customers – shipping is on us! That’s right, FREE shipping on most orders, making shopping with us even sweeter.

Some very remote regions of Australia might not be possible with our couriers, go ahead and place your order - and if it's flagged we'll be in touch.

Restricted Free Delivery Zones

Sometimes packages can be quite heavy/large and transporting it to your doorstep, depending on where you live in this vast country of ours, might be difficult. In that case we will get in touch after you place your order and discuss delivery to your nearest depot. If it doesn't make sense then no harm done, we'll refund the order.

90 Day's Free and Easy Returns

If you're not absolutely smitten with your purchase? No stress! You've got 90 days to decide if it's a keeper. If not, sending it back is a cinch. Send it back to us and send us the bill for postage while you're at it! Love it or return it for FREE– it's that simple! Just make sure the item and the packaging are in tip-top shape.

In rare cases, return delivery is over $200, in that case you will receive a $200 credit towards your shipping costs.

Other Terms and Conditions

If you miss the delivery, no worries! You may need to pick up your item(s) from the freight company's depot. We can arrange re-delivery to your home, but please note this will incur a small extra cost.

While we cannot pinpoint the exact time and date of delivery since it's out of our hands, you'll receive an email with tracking details. This way, you can contact the freight company directly for more accurate timing.

Please let us know if:

  • Someone will be available to sign for the delivery.
  • There's a safe spot to leave the item if no one will be home.
  • The address is a business location; we will need the business hours and the name of the building.
  • You notice any damage. If so, make a note when signing for the delivery or refuse to accept it. If you do accept delivery, immediately snap some photos of the damaged packaging or products with your smartphone or camera. If your item(s) arrive damaged, please send the photos to support@compactco.com.au and visit our returns page to lodge your return claim.

There you have it, everything you need to shop with confidence and a smile! 😊

7 Reasons to Shop with True Gear

From the first hello to the last goodbye, we'll make sure you're looked after and 100% satisfied with everything that you purchased. Here's why shopping with us is not only a smart choice but also a breeze!

___________________

#1 90 Day Trial - Free Returns on Us

Gave it a go, but your new gear’s just not the right fit? No worries! We’ve got your back with absolutely no hidden fees, and we’ll even cover your return shipping up to $200 (which is pretty much everything). Just make sure it’s in the same condition you received it, and we’ll handle the rest—easy as!

#2 Free Shipping Australia-Wide

Get your compact gear delivered for free, no matter where you are in Australia. We know you love a good deal, and free shipping makes it even sweeter!

#3 Aussie Family Owned

We’re not some giant faceless company. True Gear is 100% Australian-owned and run by people who understand our great outdoors.

#4 24/7 Aussie Call Support

Have a question at 3 AM? No dramas! Our Aussie-based team is here to help you around the clock, so you’re never left hanging.

#5 Secure Checkout

Shop with peace of mind. Our checkout is SSL encrypted, ensuring your details are protected and confidential every step of the way. Easy, fast and 100% safe!

#6 5 Star Customer Support

Our customers reckon we’re pretty awesome! We pride ourselves on 5-star customer service, so you know you’re in good hands when you shop with us.

“Customer service was stellar, constant communication with the owner was a highlight. As a business owner, this level of engagement speaks volumes. Cheers to future business!”

#7 Giving Back – We Plant Trees

We believe in doing our bit for the planet. Every month, we plant trees to help offset carbon emissions and make our world greener. Shop with us and be part of something bigger.

___________________

So hit the checkout and buy your gear today. It's time to break out of the ordinary, with True Gear by your side. Here's to living big from small spaces!