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Front panel display of the Bluetti B300S showcasing user-friendly control buttons and battery indicators

Bluetti B300S Expansion Battery | 3072Wh (Only Works With AC500)

by Bluetti
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$3,099.00
$2,935.00 + Free Shipping
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Bluetti B300S portable power station with angled design

Power Up Your Family Adventures with Rugged Reliability

Batman's Robin. That's the B300 for the AC500. Stack up on the right capacity for you, with an impressive 3072Wh capacity per unit. The AC500 will happily take up to 6 of these bad boys providing you power beyond your dreams - 18,432Wh. Survive server power outages at home or take on whatever project you need to with this expandable battery. Perfect for cold weather, it's self-heating function allows the battery to warm to an operating temperature which means just like robin, its reliable. Fridges, lights, air conditioners won't put a dent in what you can achieve with this set up. Get set up the way you need, and leave your power troubles behind.

Click the Add to Cart button and keep the lights on... forever. 

Charging Options For The Bluetti B300S

No need to worry about complicated setups or finding a power source. This expansion battery offers flexible recharging options—solar, AC, and car—making it perfect for off-grid adventures. With up to 3,500 life cycles, it's built for the long haul, providing reliable power that matches your rugged lifestyle. Whether you're looking to extend the life of your power station during a camping trip or need a dependable backup for your home, the B300S is your no-fuss, durable power companion.

Bluetti B300S Key Features

  • Powerful: 3,072Wh for extended family adventures
  • Versatile: Charge with solar, AC, or car
  • Reliable: 3,500+ life cycles for long-term use
  • Convenient: Powers phones, laptops, fridges, and more
  • Self-Heats: Stays responsive in freezing conditions
  • Expandable: Connect up to 18,432Wh for home backup
  • Fast Recharge: Top up in just 3.5-4 hours
  • Durable: Built tough for rugged outdoor use

Bluetti B300S Specs

Battery Info

  • Capacity: 3,072Wh (51.2V, 60Ah)
  • Cell Chemistry: LiFePO4 (Lithium Iron Phosphate)
  • Life Cycles: 3,500+ cycles to 80% original capacity
  • Shelf-life: Recharge to 80% every 3-6 months
  • Management System: MPPT Charge Controller, BMS, etc.

Output

  • USB-C Port: 1 x 100W Max
  • USB-A Port: 1 x 18W
  • DC Outlets: 1 x 12V/10A (Car Outlet)
    All regulated

Bluetti B300S multi-purpose battery for outdoor activities and work use

Input

  • AC Input: 500W Max
  • Solar Input: 500W Max, 12-60VDC, 10A
  • Car Input: 12/24V from cigarette lighter port
  • Maximum Input: 1000W, with AC adapter + solar input simultaneously

General

  • Simultaneous Charge & Discharge: Yes
  • Weight: 38kg
  • Dimensions (L x W x D): 52 x 32 x 26.6cm
  • Operating Temperature: -20℃ to 40℃
  • Storage Temperature: -20℃ to 40℃
  • Certification: UL2743, UKCA, RCM, PSE, FCC, CE
  • Warranty: 48 Months

Bluetti B300S Included Items

1 x B300S Expansion Battery
1 x Battery Expansion Cable (P150D)
1 x Solar Charging Cable (MC4 to XT90)
1 x User Manual
1 x Certificate Card
1 x Warranty Card

B300S Downloads

BLUETTI B300S Expansion Battery User Manual
Happy Holidays! Please note some of our warehouses will be closed for the holiday period from the 21st to the 5th with others operating with potential delays. Thanks for your patience and if you have questions you can call us anytime on 1300 241 125.
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 support@compactco.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 some 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 Compact Co.

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!

Limitations: Foldable Kayaks

#3 Aussie Family Owned

We’re not some giant faceless company. Compact Co. 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 Compact Co. by your side. Here's to living big from small spaces!

Bluetti B300S portable power station with angled design

Power Up Your Family Adventures with Rugged Reliability

Batman's Robin. That's the B300 for the AC500. Stack up on the right capacity for you, with an impressive 3072Wh capacity per unit. The AC500 will happily take up to 6 of these bad boys providing you power beyond your dreams - 18,432Wh. Survive server power outages at home or take on whatever project you need to with this expandable battery. Perfect for cold weather, it's self-heating function allows the battery to warm to an operating temperature which means just like robin, its reliable. Fridges, lights, air conditioners won't put a dent in what you can achieve with this set up. Get set up the way you need, and leave your power troubles behind.

Click the Add to Cart button and keep the lights on... forever. 

Charging Options For The Bluetti B300S

No need to worry about complicated setups or finding a power source. This expansion battery offers flexible recharging options—solar, AC, and car—making it perfect for off-grid adventures. With up to 3,500 life cycles, it's built for the long haul, providing reliable power that matches your rugged lifestyle. Whether you're looking to extend the life of your power station during a camping trip or need a dependable backup for your home, the B300S is your no-fuss, durable power companion.

Bluetti B300S Key Features

  • Powerful: 3,072Wh for extended family adventures
  • Versatile: Charge with solar, AC, or car
  • Reliable: 3,500+ life cycles for long-term use
  • Convenient: Powers phones, laptops, fridges, and more
  • Self-Heats: Stays responsive in freezing conditions
  • Expandable: Connect up to 18,432Wh for home backup
  • Fast Recharge: Top up in just 3.5-4 hours
  • Durable: Built tough for rugged outdoor use

Bluetti B300S Specs

Battery Info

  • Capacity: 3,072Wh (51.2V, 60Ah)
  • Cell Chemistry: LiFePO4 (Lithium Iron Phosphate)
  • Life Cycles: 3,500+ cycles to 80% original capacity
  • Shelf-life: Recharge to 80% every 3-6 months
  • Management System: MPPT Charge Controller, BMS, etc.

Output

  • USB-C Port: 1 x 100W Max
  • USB-A Port: 1 x 18W
  • DC Outlets: 1 x 12V/10A (Car Outlet)
    All regulated

Bluetti B300S multi-purpose battery for outdoor activities and work use

Input

  • AC Input: 500W Max
  • Solar Input: 500W Max, 12-60VDC, 10A
  • Car Input: 12/24V from cigarette lighter port
  • Maximum Input: 1000W, with AC adapter + solar input simultaneously

General

  • Simultaneous Charge & Discharge: Yes
  • Weight: 38kg
  • Dimensions (L x W x D): 52 x 32 x 26.6cm
  • Operating Temperature: -20℃ to 40℃
  • Storage Temperature: -20℃ to 40℃
  • Certification: UL2743, UKCA, RCM, PSE, FCC, CE
  • Warranty: 48 Months

Bluetti B300S Included Items

1 x B300S Expansion Battery
1 x Battery Expansion Cable (P150D)
1 x Solar Charging Cable (MC4 to XT90)
1 x User Manual
1 x Certificate Card
1 x Warranty Card

B300S Downloads

BLUETTI B300S Expansion Battery User Manual
Happy Holidays! Please note some of our warehouses will be closed for the holiday period from the 21st to the 5th with others operating with potential delays. Thanks for your patience and if you have questions you can call us anytime on 1300 241 125.
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 support@compactco.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 some 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 Compact Co.

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!

Limitations: Foldable Kayaks

#3 Aussie Family Owned

We’re not some giant faceless company. Compact Co. 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 Compact Co. by your side. Here's to living big from small spaces!