








Bluetti B500 Expansion Battery | 4,960Wh
Bluetti B500 Expansion Battery | 4,960Wh
Description
- Perfectly compatible with EP800/ EP900 system
- 1 battery (4,960Wh) added, 1-day home backup extended
- Industry-leading LiFePO₄ battery for ultimate reliability
- Hassle-free 10-year warranty
Resilient and Future-Ready

Tailor Your Power at Will

Safer to Use, Longer to Last
Product Specifications
Bluetti B500 Expansion Battery | 4,960Wh Product Specifications
| B500 Battery Pack | |
|---|---|
| Scalable | Works with EP800 and EP900<br>2~4 B500 Battery Packs |
| Battery Type | Lithium Iron Phosphate Cells (LiFePO₄/LFP) |
| Rated Capacity | 4,960Wh |
| Dimensions (L x W x H) | 25.0 × 12.8 × 13.3 inch / 636 × 325 × 338 mm |
| Net Weight | 127.87 lbs / 58 kg |
| Protection Grade | NEMA 4X / IP65 |
| Noise | <25dB |
| Operating Temperature | Charging: 32℉-104℉<br>Discharging: -4℉-104℉ (Inverter connects to the grid) |
| Working Humidity | 5%-95% |
| Working Altitude | ≤6561 ft / 2000 m |
| Installation | Floor or Wall Mounted<br>Indoor or Outdoor |
| DoD (Depth of Discharge) | 90% |
| Certifications | CB / CE / FCC / ICES / IP65 / PSE / RCM / UKCA / UL1973 / UL9540A / UN38.3-2022 |
| Warranty | 10-Year |

Product Manual
N/A
Product Warranty
Warranty Policy
Warranty Period
BLUETTI warrants that the product will be free from defect in workmanship and material to the original consumer purchaser.
The warranty period starts on the date of purchase by the original consumer purchaser,
- For the product of portable power station, the warranty period varies from 24 months to 72 months.
- For the product of home backup system, the warranty period varies from 48 months to 60 months.
- For the product of solar panel and accessories as cable, charger etc, 12 months is provided for the warranty service.
No warranty for gifts product and Warranty period may vary by country subject to local laws and regulations.
Please click here for more details.
Warranty Statement
Any defects in material, workmanship of your product will be covered after you provide any valid proof of purchase and information including but not limited to:
- A purchased order number made through BLUETTI official stores.
- Sales invoice or order confirmation email that clearly shows the description of the product, its price, and sales channel.
Note: The limited warranty is restricted to the country of purchase. The warranty will be invalid on the items once they are taken or shipped to other countries.
Exclusions of Warranty
1. Misused, abused, damaged by accident or damaged due to force majeure (e.g. lightning strikes, tornadoes, hurricanes, etc.);
2. Unauthorized modification, repair, dis-assembly or operation not in accordance with the official instructions or manuals;
3. Purchased from unauthorized resellers;
4. Use for special application other than normal consumer use;
5. Lost, stolen or full refunded product;
6. Any defect or damage caused by exposure to excessive heat, cold, liquids or other external causes;
7. Invalid proof of purchase;
8. Warranty period expired
9. The battery model on the warranty certificate does not match the actual item;
10. Unauthorized alteration on the warranty certificate;
11. Product wear and tear through the usage of time.
Disclaimer of Implied Warranties
This limited warranty is in lieu of all other expressed or implied warranties, including any warranty of fitness for a particular purpose or use and any implied warranty of merchantability otherwise applicable to BLUETTI portable solar generators. BLUETTI and its affiliated companies shall not be liable for any special, incidental or consequential damages, including lost profits. There are no warranties extended other than as provided herein.
This limited warranty may be modified only by BLUETTI. Any implied warranties allowed by law shall be limited in duration to the terms of the express warranty provided herein. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights. You also have other rights from state to state.BLUETTI’s only liability shall be the repair or replacement as stated above.
Product FAQs
Bluetti B500 Expansion Battery FAQs
Q1: What products work with B500?
A: B500 works with EP800 and EP900.
Q2: Can I connect the B500 directly to my home's existing main panel to run house loads?
A: No, EP800 or EP900 is needed for B500 to work. We suggest using a sub panel for essential loads.
Q3: Why do I need a BLUETTI sub panel?
A: For troubleshooting and maintenance. The sub panel has a manual switch that allows you to switch to the generator side for daily use, and the grid side when malfunctions occur.
Q4: In case of an outage, will the system kick in automatically?
A: Yes. When the power grid fails, the energy storage system provides uninterrupted power to the backup loads. When the grid is restored, the grid loads resume without manual intervention.
Q5: Does BLUETTI offer product liability insurance for its products?
A: Yes, we have purchased third-party product liability insurance worldwide.
Q6: How to customize the battery capacity based on my essential loads?
A: The recommended combo will be available just for your needs after you calculate your energy consumption with our handy calculator on BLUETTI's website under Home Energy > Design My System.
Q7: How many battery packs can I connect, and what's the maximum capacity?
A: Up to 4 battery packs (4.96kWh each), allowing a maximum storage capacity of 19.84kWh.
Q8: Is the B500 compatible with other expansion batteries, such as the B300, B300S, or B230?
A: No, the B500 only works with EP800 and EP900 and is not compatible with other types of expansion batteries.
Q9: Can I connect a third-party inverter with B500 batteries?
A: No. The B500 expansion battery is exclusively designed for EP800 and EP900.
Q10: Is it necessary to ground the B500 unit?
A: Yes, grounding the B500 unit is necessary for safety reasons and proper functionality.
Q11: Can I install the energy storage system by myself?
A: No. For safety reasons, the system must be installed by a licensed electrician. BLUETTI provides authorized installers for professional installation. For any questions regarding the installation process, please contact BLUETTI Customer Service.
Q12: Can I charge and discharge B500 at the same time?
A: Yes, with EP800 or EP900, it supports pass-through charging.
Q13: What information should I provide in case of issues with the B500?
A: To help our support team diagnose and address specific concerns promptly, please provide your order number, product serial number (SN), alarm history, error code, and firmware version.
Original: $3,499.00
-65%$3,499.00
$1,224.65Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Bluetti B500 Expansion Battery | 4,960Wh
Description
- Perfectly compatible with EP800/ EP900 system
- 1 battery (4,960Wh) added, 1-day home backup extended
- Industry-leading LiFePO₄ battery for ultimate reliability
- Hassle-free 10-year warranty
Resilient and Future-Ready

Tailor Your Power at Will

Safer to Use, Longer to Last
Product Specifications
Bluetti B500 Expansion Battery | 4,960Wh Product Specifications
| B500 Battery Pack | |
|---|---|
| Scalable | Works with EP800 and EP900<br>2~4 B500 Battery Packs |
| Battery Type | Lithium Iron Phosphate Cells (LiFePO₄/LFP) |
| Rated Capacity | 4,960Wh |
| Dimensions (L x W x H) | 25.0 × 12.8 × 13.3 inch / 636 × 325 × 338 mm |
| Net Weight | 127.87 lbs / 58 kg |
| Protection Grade | NEMA 4X / IP65 |
| Noise | <25dB |
| Operating Temperature | Charging: 32℉-104℉<br>Discharging: -4℉-104℉ (Inverter connects to the grid) |
| Working Humidity | 5%-95% |
| Working Altitude | ≤6561 ft / 2000 m |
| Installation | Floor or Wall Mounted<br>Indoor or Outdoor |
| DoD (Depth of Discharge) | 90% |
| Certifications | CB / CE / FCC / ICES / IP65 / PSE / RCM / UKCA / UL1973 / UL9540A / UN38.3-2022 |
| Warranty | 10-Year |

Product Manual
N/A
Product Warranty
Warranty Policy
Warranty Period
BLUETTI warrants that the product will be free from defect in workmanship and material to the original consumer purchaser.
The warranty period starts on the date of purchase by the original consumer purchaser,
- For the product of portable power station, the warranty period varies from 24 months to 72 months.
- For the product of home backup system, the warranty period varies from 48 months to 60 months.
- For the product of solar panel and accessories as cable, charger etc, 12 months is provided for the warranty service.
No warranty for gifts product and Warranty period may vary by country subject to local laws and regulations.
Please click here for more details.
Warranty Statement
Any defects in material, workmanship of your product will be covered after you provide any valid proof of purchase and information including but not limited to:
- A purchased order number made through BLUETTI official stores.
- Sales invoice or order confirmation email that clearly shows the description of the product, its price, and sales channel.
Note: The limited warranty is restricted to the country of purchase. The warranty will be invalid on the items once they are taken or shipped to other countries.
Exclusions of Warranty
1. Misused, abused, damaged by accident or damaged due to force majeure (e.g. lightning strikes, tornadoes, hurricanes, etc.);
2. Unauthorized modification, repair, dis-assembly or operation not in accordance with the official instructions or manuals;
3. Purchased from unauthorized resellers;
4. Use for special application other than normal consumer use;
5. Lost, stolen or full refunded product;
6. Any defect or damage caused by exposure to excessive heat, cold, liquids or other external causes;
7. Invalid proof of purchase;
8. Warranty period expired
9. The battery model on the warranty certificate does not match the actual item;
10. Unauthorized alteration on the warranty certificate;
11. Product wear and tear through the usage of time.
Disclaimer of Implied Warranties
This limited warranty is in lieu of all other expressed or implied warranties, including any warranty of fitness for a particular purpose or use and any implied warranty of merchantability otherwise applicable to BLUETTI portable solar generators. BLUETTI and its affiliated companies shall not be liable for any special, incidental or consequential damages, including lost profits. There are no warranties extended other than as provided herein.
This limited warranty may be modified only by BLUETTI. Any implied warranties allowed by law shall be limited in duration to the terms of the express warranty provided herein. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights. You also have other rights from state to state.BLUETTI’s only liability shall be the repair or replacement as stated above.
Product FAQs
Bluetti B500 Expansion Battery FAQs
Q1: What products work with B500?
A: B500 works with EP800 and EP900.
Q2: Can I connect the B500 directly to my home's existing main panel to run house loads?
A: No, EP800 or EP900 is needed for B500 to work. We suggest using a sub panel for essential loads.
Q3: Why do I need a BLUETTI sub panel?
A: For troubleshooting and maintenance. The sub panel has a manual switch that allows you to switch to the generator side for daily use, and the grid side when malfunctions occur.
Q4: In case of an outage, will the system kick in automatically?
A: Yes. When the power grid fails, the energy storage system provides uninterrupted power to the backup loads. When the grid is restored, the grid loads resume without manual intervention.
Q5: Does BLUETTI offer product liability insurance for its products?
A: Yes, we have purchased third-party product liability insurance worldwide.
Q6: How to customize the battery capacity based on my essential loads?
A: The recommended combo will be available just for your needs after you calculate your energy consumption with our handy calculator on BLUETTI's website under Home Energy > Design My System.
Q7: How many battery packs can I connect, and what's the maximum capacity?
A: Up to 4 battery packs (4.96kWh each), allowing a maximum storage capacity of 19.84kWh.
Q8: Is the B500 compatible with other expansion batteries, such as the B300, B300S, or B230?
A: No, the B500 only works with EP800 and EP900 and is not compatible with other types of expansion batteries.
Q9: Can I connect a third-party inverter with B500 batteries?
A: No. The B500 expansion battery is exclusively designed for EP800 and EP900.
Q10: Is it necessary to ground the B500 unit?
A: Yes, grounding the B500 unit is necessary for safety reasons and proper functionality.
Q11: Can I install the energy storage system by myself?
A: No. For safety reasons, the system must be installed by a licensed electrician. BLUETTI provides authorized installers for professional installation. For any questions regarding the installation process, please contact BLUETTI Customer Service.
Q12: Can I charge and discharge B500 at the same time?
A: Yes, with EP800 or EP900, it supports pass-through charging.
Q13: What information should I provide in case of issues with the B500?
A: To help our support team diagnose and address specific concerns promptly, please provide your order number, product serial number (SN), alarm history, error code, and firmware version.


















