BLUETTI B300S Expansion Battery

Expand Your AC500 Power Capacity With The BLUETTI B300S Expansion Battery

The BLUETTI B300S Expansion Battery is designed to work exclusively with the AC500 Generator. Combine AC with solar or car input and you can top up the B300S in less than 4 hours with a maximum of 1,000W* input rate.

*The D050S DC charging enhancer is required.

The BLUETTI B300S Expansion Battery is a powerful solution designed to enhance your energy storage and extend off-grid experiences. Ideal for pairing with the BLUETTI AC500 generator, it offers unmatched flexibility and capacity for residential or mobile energy needs. With a capacity of 3,072Wh and the ability to connect up to six units for a total of 18,432Wh, the B300S can keep essential appliances running during power outages or long-term off-grid living. Its impressive lifespan of 3,500+ cycles ensures that it remains reliable and efficient for years, making it a valuable long-term investment.

Versatility is a key feature of the B300S, with multiple recharging options including solar, AC, or car power. Capable of charging in less than four hours when using both solar and AC inputs, it offers an eco-friendly backup power source for on-the-go lifestyles. Additionally, its variety of output options, including USB-C, USB-A, and a 12V/10A car outlet, allows it to charge a wide range of devices. Even in freezing conditions, the B300S performs smoothly thanks to its Temperature Adaptive Function, making it a reliable power solution for extreme environments.

BLUETTI B300S Expansion Battery Features

Flexible Recharging

You can recharge BLUETTI B300S quickly with 200W Max. solar input thanks to the built-in MPPT. Besides, it also supports AC, car, and lead-acid battery charging. The car and lead-acid battery charging need a D050S DC charging enhancer.

Versatile Power Source

You can power your smartphones, laptops, fans, lights, refrigerators and more with specific outputs-100W USB-C, 12V/10A cigarette lighter, and 18W USB-A.

Responsive Even in the Cold

Waking up electronics on a freezing day may be time-consuming. But with the Temperature Adaptive Function, B300S will automatically heat up to work actively and smoothly as usual.

Expandable Battery Pack

As the companion battery pack to AC500, B300S has a capacity of 3,072Wh and lasts for 3,500+ cycles to 80% of its original capacity. Hook up 6*B300S with AC500, you'll get a powerhouse with 18,432Wh, enough to get you through a severe power outage.

BLUETTI B300S Specifications

What's Included

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

BLUETTI B300S Expansion Battery Manual

Frequently-Asked Questions

Q1: How many B300S packs can be connected to AC500?

6.

Q2: How many B300 packs can be connected to AC500?

4.

Q3: Can B300S and B300 be mixed in an AC500 power system?

Yes. 4 packs in total.

Q4: Does B300s support App control?

Connect it to the AC500, pair them with BLUETTI App, and you can control the system at any time from anywhere.

Q5: Can I use B300s alone as a UPS?

No.

Q6: What is the maximum input charging power of the BLUETTI B300s?

1000W Max. with optional D050S DC Charging Enhancer*
* Sold separately

Q7: Can I use car cigarette lighter or lead-acid battery to charge B300s?

Yes, BLUETTI D050S DC Charging Enhancer* is required.
* Sold separately

Q8: Can I use third-party solar panels to charge the BLUETTI B300s?

Yes, if the solar panels' specs fall in
1) Total Voltage: 12-60V
2) Total Power: 500W Max.
3) Include MC4 connectors.

Q9: Can it charge and discharge at the same time?

Yes.

Q10: Can I use or charge B300s in sub-zero temperatures?

Temperature ranges for B300S are:
Charge: 0-40℃ (32-104℉);
Discharge: -20-40℃ (-4-104℉);
Storage: -20-40℃ (-4-104℉).
Technically, it can power electrical devices under such situations, but please avoid charging it.

Q11: How long can it run my device?

Running time = Battery capacity × DoD × η ÷ Device rated power DoD refers to Depth of Discharge and η is local inverter efficiency.
For B300s, both DoD and η are 90%. If you run a 100W light bulb with it, the running time will be:
3,072Wh × 90% × 90% ÷ 100W ≈ 25hrs
Note: The above data is for reference ONLY.

Q12: Is B300s waterproof?

No. Also, please do NOT store it in a humid environment for a long time.

Q13: Is it possible to replace the built-in battery?

No. If the battery pack is faulty or even dead, please contact BLUETTI Customer Service.

Q14: I'd like more tutorial videos on the AC500 and B300s combo.

Sure, please follow BLUETTI Support on YouTube.

Q15: What is the difference between B300S and B300?

1) Current capacity: 130A for B300S while 75A for B300.
2) ONLY B300S features the automatic heating function.
3) Solar input: 500W for B300S while 200W for B300.

Q16: How does the heating function work?

When the temperature is below 0℃, the battery will be automatically heated once AC or PV charging is activated (input power＞400W).