Question 1

Q1: How to claim warranty?

Accepted Answer

A: Once you receive your product, please register to claim your warranty on our
website.

Question 2

Q2: Why doesn't the B300K drain all its power?

Accepted Answer

A: The B300K retains a portion of its energy to prevent overdischarging, which
helps protect the battery's lifespan and ensures long-term performance.

Question 3

Q3: Can I leave the battery uncharged after fully discharging?

Accepted Answer

A: No, it's important to recharge the B300K in time before the SoC drops to 1%
to avoid potential damage. Additionally, ensure it's placed in an environment of
at least 10°C (50°F) for at least 12 hours before recharging.

Question 4

Q4: Which BLUETTI power stations can work with B300K?

Accepted Answer

A: B300K is compatible with AC200L, AC200MAX, AC300, and AC500. When connecting
to AC500, the P090D to P150D cable is required for connecting with AC500 and
sold separately.

Question 5

Q5: Can I use the B300K alone?

Accepted Answer

A: Yes. B300K is a standalone power source with a 12W USB-A port.

Note: The B300K can only be charged by connecting to the
AC500/AC300/AC200L/AC200MAX

Question 6

Q6: Does the B300K support power bank mode?

Accepted Answer

A: No.

Question 7

Q7: How many B300K batteries can l connect with AC300? Can l mix B300K/B300/B300S?

Accepted Answer

The AC300 supports connecting with up to 4 B300 / B300K using the P090A cable.

Note: The AC300 can mix and match with B300 and B300K. However, it cannot
connect B300, B300K, and B300S batteries simultaneously.

Question 8

Q8: How many B300K batteries can l connect with AC500? Can l mix B300K/B300/B300S ?

Accepted Answer

The AC500 supports up to 6 B300K. The P150D to P090A cable is required for
connecting the AC500 with B300K or B300K with B300S.

The AC500 can mix and match with B300, B300S, and B300K, with up to 6 total
battery packs.

Note: For the combo with one AC500 unit, if B300 is included, up to 4 battery
packs can be connected; if not, up to 6 packs can be connected.

Question 9

Q9: How many B300K batteries can l connect with AC200L? Can l mix B300K/B300/B230/B210 ?

Accepted Answer

A: The AC200L supports up to 2 B300K for up to 7,577.6Wh capacity using the
P090D cable.

Note: AC200L can only mix with B300 and B300K.

Question 10

Q10: How many B300K batteries can l connect with AC200MAX? Can l mix B300K/B300/B230/B210 ?

Accepted Answer

A: AC200MAX supports up to 2 B300K for up to 7577.6Wh capacity using the P090D
cable.

Question 11

Q11: How long does it take to charge the B300K to 80%?

Accepted Answer

A: Connecting with AC300 / AC500, you can charge the B300K to 80% in 45 minutes
using a 30A charging cable.

Note: For reference ONLY.

Question 12

Q12: Can one AC200MAX expansion port connect to the B300K and the other to the B230/B210?

Accepted Answer

A: Yes, you can.

Question 13

Q13: If the B300K is mixed with other battery packs, can I monitor the status of different packs?

Accepted Answer

A: Yes. Connect it to the AC300 / AC500 / AC200L / AC200MAX, and you can control
the system via the BLUETTI App at any time, from anywhere.

Question 14

Q14: Can I use B300K alone as a UPS?

Accepted Answer

A: No

Question 15

Q15: Can l use solar panels or car cigaretter lighter to charge B300K?

Accepted Answer

A: No. The B300K can only be charged by connecting to the AC500 / AC300 / AC200L
/ AC200MAX.

Question 16

Q16: Can I use or charge B300K in sub-zero temperatures?

Accepted Answer

A: Temperature ranges for B300K are:

* Charge: 0 to 40℃ (32 to 104℉);
 * Discharge: -20 to 40℃ (-4 to 104℉);
 * Storage: -20 to 40℃ (-4 to 104℉).

Technically, it can power electrical devices under such situations, but please
avoid charging it.

Question 17

Q17: How long can it run my device?

Accepted Answer

A: Running time = Battery capacity × DoD × η ÷ Device rated power DoD refers to
Depth of Discharge and η is local inverter efficiency. For B300K, both DoD and η
are 90%. If you run a 100W light bulb with it, the running time will be:

2,764.8Wh × 90% × 90% ÷ 100W ≈ 22.39hrs

Note: The above data is for reference ONLY.

Question 18

Q18: Is B300K waterproof?

Accepted Answer

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

Question 19

Q19: Is it possible to replace the built-in battery?

Accepted Answer

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

Question 20

Q20: How to access more tutorial videos for the AC300 / AC500 / AC200MAX / AC200L and B300K combo?

Accepted Answer

A: Follow BLUETTI Support on YouTube for more videos.

Question 21

Q21: Does the B300K have a Power Bank mode?

Accepted Answer

A: No.

Battery Capacity	2,764.8Wh (51.2V, 54Ah)
Battery Type	LiFePO₄ (Lithium Iron Phosphate)	LiFePO	LiFePO₄
Cycle Life	6,000+ (80%)	3,500+ (80%)	3,500+ (80%)
USB-A Port	12W Max., 5V / 2.4A	1* 3.6V-12V / 3A, 18W	1* 3.6V -12V / 3A, 18W
Weight	29.5kg (65.04lbs)	38kg / 83.8lbs	21.8kg / 48lbs
Dimensions (L × W × H)	52.5 × 32.7 × 20.9cm (20.67 × 12.87 × 8.23in)	52 x 32 x 26.6cm 20.5x12.6x10.4in	42 x 28 x 22.7cm 16.5 x 11.0 x 8.91in
Warranty	3+1 Years	4 Years	4 Years
Compatibility	AC200L, AC200MAX, AC300, AC500, Apex 300	AC500	AC200MAX, AC200P, EB150, EB240, AC200L

BLUETTI B300K Expansion Battery | 2,764.8Wh

Power Expansion for Every Situation

Great Compatibility for More Possibilities

Built to Protect, Designed to Last

Fast Charging Comes in Handy

A Standalone Power Source, A Standout Performance

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Tech Specs

IN THE BOX