BLUETTI B300K 2764.8Wh Expandable Extra Battery for AC200L/AC200MAX/AC300/AC500

Power Expansion for Every Situation ●[Boost Capacity] – This 2764.8Wh battery adds more power to power stations: AC200MAX, AC200L, AC300, and AC500, allowing you to upgrade your setup as your needs grow. ●[Support Mix Use] – Combine the B300K with other BLUETTI batteries like the B300, B300S, B230, and B210 for a seamless upgrade to your setup. For example, AC500+B300S+B300K = 5,836.8Wh. ●[Light Weight] – It weighs only 29.5kg / 65lbs and can be fixed to the wall. It greatly saves your indoor space and is also very convenient to carry outdoors. ●[Long-lasting Safety] – Upgraded LiFePO4 batteries with 4,000+ cycles, built-in cooling fan, and AI-powered BMS ensure stable and optimal performance for years to come. ●[What You Get] – BLUETTI B300K expansion battery, P090A battery expansion cable for power station AC200L AC300 AC200MAX and user manual. FAQs ●Q1: How to upgrade the B300K? ●A: Connect the B300K to the power station and upgrade it via the BLUETTI app in Settings > Firmware Upgrade. Follow in-app instructions. ●Q2: Can it charge and discharge at the same time? ●A: Yes, the B300K supports pass-through charging. ●Q3: Why doesn’t the B300K drain all its pow er? ●A: The B300K reserves some energy to avoid overdischarging and protect the battery’s lifespan. ●Q4: Can I leave the battery uncharged after fully discharging? ●A: No, charge promptly after use to prevent damage. Keep the battery in the environment of at least 10°C (50°F) for at least 12 hours beforehand. Preview BATTERY INFO Model B300K Battery Capacity 2,764.8Wh (51.2V, 54Ah) Battery Type LiFePO₄ (Lithium Iron Phosphate) Life Cycles 4,000+ Cycles to 80% Original Capacity OUTPUT USB-A 12W Max., 5V / 2.4A GENERAL Net Weight Approx. 29.5kg (65.04lbs) Dimensions (L × W × H) 525 × 327 × 209mm (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. Compare B300K $ 1,199.00 $ 1,499.00 B300 $ 1,599.00 $ 1,999.00 B300S $ 1,799.00 $ 2,299.00 B230 $ 1,099.00 $ 1,299.00 Capacity 2,764.8Wh 3,072Wh 3,072Wh 2,048Wh Battery Type LiFePO₄ LiFePO₄ LiFePO₄ LiFePO₄ Life Cycles 4,000+ (80%) 3,500+ (80%) 3,500+ (80%) 3,500+ (80%) USB-A Output 1* 5V/2.4A, 12W 1* 3.6V-12V / 3A, 18W 1* 3.6V-12V / 3A, 18W 1* 3.6V -12V / 3A, 18W Dimensions 52.5 x 32.7 x 20.cm 20.67 x 12.87 x 8.23in 52 × 32 × 26.6cm 20.5 x 12.5 x 10.5 in 52 x 32 x 26.6cm 20.5×12.6×10.4in 42 x 28 x 22.7cm 16.5 x 11.0 x 8.91in Weight 29.5kg / 65.04lbs 36.1kg / 79.6lbs 38kg / 83.8lbs 21.8kg / 48lbs Warranty 3+1 Years 4 Years 4 Years 4 Years Compatibility AC200L, AC200MAX, AC300, AC500 AC200L, AC300, AC500 AC500 AC200MAX, AC200P, EB150, EB240, AC200L You may also like BLUETTI AC200MAX 2200W 2048Wh Expandable Power Station Solar Generator For Trip 799.0 USD 1098.75 USD Free shipping 27% off BLUETTI EP500/Pro 2000W/3000W 5120Wh Movable Power Station Off-Grid for Backup 1999.0 USD 2498.75 USD Free shipping 20% off BLUETTI AC180 1800W 1152Wh Portable Power Station For RV/Camping/Home Backup 449.0 USD Free shipping BLUETTI AC300+B300K 3000W 2764.8Wh Power Station Back-up Power Supply Off-grid 1349.0 USD 1686.25 USD Free shipping 20% off BLUETTI AC180T 1800W 1433Wh Power Station Swappable Battery Design for Trip 799.0 USD 998.75 USD Free shipping 20% off BLUETTI AC200L 2400W 2048Wh Portable Power Station for Camping/RV/Road Trip 799.0 USD 998.75 USD Free shipping 20% off BLUETTI AC200P 2000W/2000Wh Portable Power Station LFP Solar Generator Backup 749.0 USD 1048.75 USD Free shipping 29% off