B300K Expansion Battery | 2,764.8Wh
✔ NZ Stocked
🛡 Official Warranty
📞 Need help? 0800 464 664
✔ NZ Stocked
🛡 Official Warranty
📞 Need help? 0800 464 664
The B300K adapts to your life, whether you're safeguarding your home during outages or powering an off-grid adventure. Stack multiple B300K batteries, or mix and match with B300, and B300S models for a customized energy solution that ensures you're never caught without power, no matter where you are.
*Need P150D to P090D cable to connect the AC500.
The B300K seamlessly integrates with AC200L, AC200MAX, AC300, and AC500* power stations, giving you the flexibility to scale your energy setup as your needs grow. Whether you're prepping for more power at home or gearing up for your next adventure, the B300K has you covered.
* A P090D to P150D cable is required for connecting with AC500 and sold separately.
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.
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.
B330K Expansion Battery I Battery Expansion Cable (P090A) I User Manual
We get it. You've got a lot of choice when it comes to online retailers.
Here's why we think you should shop with us at The Off Grid Store.
We can deliver to almost anywhere in New Zealand, unfortunately there are a few exceptions such as Chatham Islands and for larger items and Great Barrier Island. Best prices online guaranteed.
30 Day Easy Returns. Not happy with your product, we'll take it back no
questions asked.
Great Service. We pride ourselves on the best service, anywhere.
Your Satisfaction Guaranteed. We handpick our products for quality, we
know you'll love them. But if there is ever something wrong, we'll fix it.
| Product | SI Metro | SI Rural | NI Metro | NI Rural |
|---|---|---|---|---|
| BLUETTI AC2P Portable Power Station | 300W 230.4Wh | 20 | 25 | 25 | 30 |
| BLUETTI EB3A Portable Power Station | 600W 268Wh | 20 | 25 | 25 | 30 |
| BLUETTI AC50P Portable Power Station | 700W 504Wh | 35 | 45 | 45 | 55 |
| BLUETTI AC70P Portable Power Station | 1,000W 864Wh | 35 | 45 | 45 | 55 |
| BLUETTI AC180P Portable Power Station | 1,800W 1,440Wh | 60 | 75 | 75 | 95 |
| BLUETTI AC180T Portable Power Station | 1,800W 1,433.6Wh | 60 | 75 | 75 | 95 |
| BLUETTI AC200P L Portable Power Station | 2400W 2304Wh | 90 | 120 | 120 | 150 |
| BLUETTI Premium 200 V2 Portable Power Station | 2700W 2073.6Wh | 60 | 75 | 75 | 95 |
| BLUETTI AC240P Portable Power Station | 2,400W 1,843Wh | 90 | 120 | 120 | 150 |
| BLUETTI AC300 + B300K Battery | Home Battery Backup | 3000W 2765Wh | 200 | 250 | 300 | 400 |
| BLUETTI AC500 + B300K | Home Battery Backup | 5000W 2764.8Wh | 200 | 250 | 300 | 400 |
| BLUETTI B300K Expansion Battery | 2,764.8Wh | 200 | 250 | 300 | 400 |
| BLUETTI Charger 1 | 560W Alternator Charger + 5m DC Cable | 20 | 25 | 25 | 30 |
| BLUETTI PV120D Solar Panels | 120W | 20 | 25 | 25 | 30 |
| BLUETTI PV200D Solar Panels | 200W | 35 | 45 | 45 | 55 |
| BLUETTI PV350D Solar Panel | 350W | 60 | 75 | 75 | 95 |
The B300K adapts to your life, whether you're safeguarding your home during outages or powering an off-grid adventure. Stack multiple B300K batteries, or mix and match with B300, and B300S models for a customized energy solution that ensures you're never caught without power, no matter where you are.
*Need P150D to P090D cable to connect the AC500.
The B300K seamlessly integrates with AC200L, AC200MAX, AC300, and AC500* power stations, giving you the flexibility to scale your energy setup as your needs grow. Whether you're prepping for more power at home or gearing up for your next adventure, the B300K has you covered.
* A P090D to P150D cable is required for connecting with AC500 and sold separately.
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.
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.
B330K Expansion Battery I Battery Expansion Cable (P090A) I User Manual
We get it. You've got a lot of choice when it comes to online retailers.
Here's why we think you should shop with us at The Off Grid Store.
We can deliver to almost anywhere in New Zealand, unfortunately there are a few exceptions such as Chatham Islands and for larger items and Great Barrier Island. Best prices online guaranteed.
30 Day Easy Returns. Not happy with your product, we'll take it back no
questions asked.
Great Service. We pride ourselves on the best service, anywhere.
Your Satisfaction Guaranteed. We handpick our products for quality, we
know you'll love them. But if there is ever something wrong, we'll fix it.
| Product | SI Metro | SI Rural | NI Metro | NI Rural |
|---|---|---|---|---|
| BLUETTI AC2P Portable Power Station | 300W 230.4Wh | 20 | 25 | 25 | 30 |
| BLUETTI EB3A Portable Power Station | 600W 268Wh | 20 | 25 | 25 | 30 |
| BLUETTI AC50P Portable Power Station | 700W 504Wh | 35 | 45 | 45 | 55 |
| BLUETTI AC70P Portable Power Station | 1,000W 864Wh | 35 | 45 | 45 | 55 |
| BLUETTI AC180P Portable Power Station | 1,800W 1,440Wh | 60 | 75 | 75 | 95 |
| BLUETTI AC180T Portable Power Station | 1,800W 1,433.6Wh | 60 | 75 | 75 | 95 |
| BLUETTI AC200P L Portable Power Station | 2400W 2304Wh | 90 | 120 | 120 | 150 |
| BLUETTI Premium 200 V2 Portable Power Station | 2700W 2073.6Wh | 60 | 75 | 75 | 95 |
| BLUETTI AC240P Portable Power Station | 2,400W 1,843Wh | 90 | 120 | 120 | 150 |
| BLUETTI AC300 + B300K Battery | Home Battery Backup | 3000W 2765Wh | 200 | 250 | 300 | 400 |
| BLUETTI AC500 + B300K | Home Battery Backup | 5000W 2764.8Wh | 200 | 250 | 300 | 400 |
| BLUETTI B300K Expansion Battery | 2,764.8Wh | 200 | 250 | 300 | 400 |
| BLUETTI Charger 1 | 560W Alternator Charger + 5m DC Cable | 20 | 25 | 25 | 30 |
| BLUETTI PV120D Solar Panels | 120W | 20 | 25 | 25 | 30 |
| BLUETTI PV200D Solar Panels | 200W | 35 | 45 | 45 | 55 |
| BLUETTI PV350D Solar Panel | 350W | 60 | 75 | 75 | 95 |