BLUETTI B300S Expansion Battery | 3,072Wh
- 3,072Wh LiFePO₄ battery for over 3,500 life cycles.
- Standalone power station with 100W USB-C, 12V/10A car port and USB-A port.
- Flexible charging via AC, solar and car power sources.
- Responsive even in freezing days with Temperature Adaptive Function.
- Compatible with AC500 for a maximum of 36,864Wh capacity. (2*AC500+12*B300S)
30 Days Price Match Guarantee
BLUETTI guarantees that we will refund you the difference if you find a lower price from us within 30 days of your purchase.
1. Valid purchase history within 30 days.
2. Take a screenshot of the lower price and email us, we'll refund the differences as soon as we confirmed it.
4-year Hassle Free
*The D050S DC charging enhancer is required.
Versatile Power Source
Responsive Even in the Cold
Expandable Battery Pack
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Batteries arrived on time and in excellent condition. Adding the batteries to my existing system was easy. Very pleased with the Bluetti product. My only recommendation is they address their product support. I’ve invested significantly in Bluetti and I do have concerns about support if and when I need it. It’s actually a series concern I have.
I have the AC500 and 3 B300s and very satisfied. Actually got to try it out in a power outage we had for 2 days. Worked flawlessly and as advertised. Going to expand in the near future.
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?A:
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?A:
Q6: What is the maximum input charging power of the BLUETTI B300s?A:
1000W Max. with optional D050S DC Charging Enhancer*
* Sold separately
Q7: Can I use car cigaretter lighter or lead-acid battery to charge B300s?A:
Yes, BLUETTI D050S DC Charging Enhancer* is required.
* Sold separately
Q8: Can I use third-party solar panels to charge the BLUETTI B300s?A: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?A:
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).
A useful guide to making the most of it all.