Bluetti B300K2 Expansion Battery for APEX 300
Bluetti B300K2 Expansion Battery for APEX 300
- Brand: Bluetti
- MPN: B300K2 for APEX 300
- Part #: BATBTT1045
- UPC:
- Brand: Bluetti
- MPN: B300K2 for APEX 300
- Part #: BATBTT1045
- UPC:
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Popular Portable Power Station Accessories
Bluetti B300K2 Expansion Battery for APEX 300
- Brand: Bluetti
- MPN: B300K2 for APEX 300
- Part #: BATBTT1045
Product URL: https://www.pbtech.co.nz/product/BATBTT1045/api/files/image?path=imgad/aib/CommonX_20260331133610.png
| Branch | New Stock | On Display |
|---|---|---|
| Auckland - Albany | - | |
| Auckland - Glenfield | - | |
| Auckland - Queen Street | - | |
| Auckland - Auckland Uni | - | |
| Auckland - Westgate | - | |
| Auckland - Penrose | - | |
| Auckland - Henderson (Express) | - | |
| Auckland - St Lukes | - | |
| Auckland - Manukau | - | |
| Hamilton | - | |
| Tauranga | - | |
| New Plymouth | - | |
| Palmerston North | - | |
| Petone | - | |
| Wellington | - | |
| Nelson | - | |
| Auckland - Head Office | - | |
| Auckland - East Tamaki Warehouse | - | |
| Christchurch - Hornby | - | |
| Christchurch - Christchurch Central | - | |
| Dunedin | - |
Features
B300K for Apex 300
- 2,764.8Wh Capacity with 4,000+ Life Cycles: Perfectly designed for daily power needs or as a reliable backup during outages.
- Automotive-Grade LiFePO₄ Battery: Enjoy an extended lifespan and enhanced safety with cutting-edge battery technology.
- Seamless Compatibility: Effortlessly integrates with Apex 300 power stations.
- Maximize Your Power: Expand up to a massive 58kWh when connected with Apex 300 for diverse energy needs.
- Standalone Power Source: Charge your essential devices anytime with the convenient USB-A Port.
Built to Protect, Designed to Last
The B300K is designed to excel in safety and reliability. Featuring square LiFePO₄ batteries and cutting-edge AI-BMS technology, together with a robust aluminum casing, advanced wireless components, and efficient cooling fan ensure this battery stands the test of time, giving you a power source you can count on in any situation.

Fast Charging Comes in Handy
When paired with the AC300 or AC500, this battery charges up to 80% in just 45 minutes, so you can get back to what matters without any significant interruption, your work, activities, or emergencies ...whether you're at home or on the go.

A Standalone Power Source, A Standout Performance
The B300K isn't just an add-on; it's also a versatile power hub. With a USB-A port, it's perfect for keeping your essentials like smartphones, tablets, or fans charged, whether you're ready to make an urgent call or message, eager to share beautiful moments with your friends, or try to stay cool while camping in a tent. Power is always within reach, wherever life takes you.

Specifications
IN THE BOX
B300K Expansion Battery x 1
Battery Connection Cable (CA90) x 1
User Manual x 1
BATTERY INFO
Model
B300K
Battery Capacity
2,764.8Wh (51.2V, 54Ah)
Battery Type
LiFePO₄ (Lithium Iron Phosphate)
Cycle Life
6,000+ (80%)
OUTPUT
USB-A Port
12W Max., 5V / 2.4A
Capacity
2,764.8Wh
GENERAL
Weight
29.5kg (65.04lbs)
Dimensions (L × W × H)
52.5 × 32.7 × 20.9cm (20.67 × 12.87 × 8.23in)
Charging Temperature
0°C to 40°C (32°F to 104°F)
Discharging Temperature
-20°C to 40°C (-4°F to 104°F)
Storage Temperature
Up to 1 month: -20°C to 40°C (-4°F to 104°F)
Up to 6 months: -20°C to 25°C (-4°F to 77°F)
Working Humidity
5% to 95%RH
Charging Current
60A Max.
(Current may decrease outside specified temperatures)
Discharging Current
70A Max.
2 × Expansion Port
58.4VDC Max., 90A Max.
Compatibility
AC200L, AC200MAX, AC300, AC500, Apex 300

