B300S has a 3.072Wh capacity and lasts 3.500+ cycles to 80% of its original capacity. Hook up 6 B300S packs with AC500, and you'll get a massive powerhouse with 18.432Wh, enough to power up your RV, off-grid life, and get you through a severe power outage.
Responsive Even in the Cold
Waking up electronics on a freezing day may be time-consuming. But with the Self-heating Function, B300S will automatically heat up the battery to ensure it can work actively and smoothly as usual.
Note: Self-heating Function won't be activated if the ambient temperature is under -4℉.
Standalone Power Source
More than an expansion battery pack, B300S can be used as a standalone power source as it features versatile outputs - 100W USB-C, 12V/10A cigarette lighter, and 18W USB-A to feed your smartphones, laptops, fans, lights, refrigerators, and more.
Blazing Fast Recharging
Faster is always better. Charge your B300S in 4 hours* at the maximum of 1.000W input rate by 1.000W Solar input* or 500W adapter with 500W solar input.
* The data is for reference only.
* The D050S DC charging enhancer is required.
Q1: How many B300 packs can be connected to AC500？
A:4*B300
Q2: How many B300S packs can be connected to AC500？
A: 6*B300S
Q3: Can B300S and B300 be mixed in an AC500 power system?
A: 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. No.
Q6: What is the maximum input charging power of the BLUETTI B300S?
A: 1.000W 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: Yes.
Q10: Can I use or charge B300S in sub-zero temperatures?
A: 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?
A: 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?
A: 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?
A: 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.
A: Sure, please follow BLUETTI Support on YouTube.
Q15: What is the difference between B300S and B300?
A: 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?
A: When the temperature is below 0℃, the battery will be automatically heated once AC or PV charging is activated (input power＞400W).
Q17: Can the B300S be used with the AC300?
A: No
How-to Videos
How-to
A useful guide to making the most of it all.
1 review for BLUETTI B300S Expansion Battery | 3072Wh
Rated 5 out of 5
mepadij356 –
The BLUETTI B300S Expansion Battery is a high-performance energy storage solution that provides a significant boost to your power capacity. If you need enhanced performance and faster charging capabilities, the B300S may be the better choice.
mepadij356 –
The BLUETTI B300S Expansion Battery is a high-performance energy storage solution that provides a significant boost to your power capacity. If you need enhanced performance and faster charging capabilities, the B300S may be the better choice.