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BLUETTI · Expansion Battery

BLUETTI B300

Discontinued or legacy model

Support/history only · discontinued · Non-promotional record

Shopping market: United States Prices and buying links shown here apply to this market.

Discontinued · current price not offered
Buying unavailable in United States
Good for
  • Add more battery capacity for longer trips, work sessions or backup
  • Add 3,072 Wh of documented battery storage to a compatible system
  • Works with verified compatible station: AC70
  • Keep using the compatible power station you already have while adding stored energy
  • Designed as a system-expansion battery rather than a stand-alone AC power station
  • Match the exact receiving station and required battery connection before buying

Selected configuration: B300 Expansion Battery | 3072Wh

Exact model / SKU

B300-UN-GY-BL-SPFUS · 44696842207451

OWNER SUPPORT · NON-PROMOTIONAL

Historical compatibility records

BLUETTI AC200MAX · discontinued · conditional compatibility · Manufacturer evidence

Full Specs

OWNER SUPPORT

Current replacement path

These are manufacturer-documented successors for this market. A successor is not automatically a drop-in replacement. Compare capacity, output, ports, cables, expansion batteries and RV integration before buying.

Full Specs

Specifications apply to the stated market and configuration. Expanded-system figures require the named additional equipment.

Capacity
3,072 Wh single batteryBLUETTI B300 US exact specification
Battery
Capacity
3,072Wh (51.2V, 60Ah)BLUETTI source ↗ · reviewed 2026-09-24
Life Cycles
3500+ Cycles to 80% Original CapacityBLUETTI source ↗ · reviewed 2026-09-24
Type
LiFePO4 (Lithium Iron Phosphate)BLUETTI source ↗ · reviewed 2026-09-24
Outputs
12V DC Outlet*
1 x 12V/10A (Car Outlet) *All Regulated.BLUETTI source ↗ · reviewed 2026-09-24
Independent battery outputs
12 V/10 A vehicle socket, 18 W USB-A and 100 W USB-C. There is no built-in AC inverter.Reviewed manual scope: 1–18 (complete English manual; blank page 17 checked)BLUETTI source ↗ · reviewed 2026-09-24
USB-A Port
1 x 18W USB-ABLUETTI source ↗ · reviewed 2026-09-24
USB-C Port
1 x 100W Max.BLUETTI source ↗ · reviewed 2026-09-24
Charging
12V/24V Car Outlet (100W/200W)
≈ 30 or 15 HoursBLUETTI source ↗ · reviewed 2026-09-24
AC
≈ 6.5~7 Hours at 500WBLUETTI source ↗ · reviewed 2026-09-24
AC Input
500W Max.BLUETTI source ↗ · reviewed 2026-09-24
AC + Solar
≈ 5 Hours at 700W (With prime sunshine, ideal orientation and low temperature)BLUETTI source ↗ · reviewed 2026-09-24
Car Input
12/24V from Cigarette Lighter Port; requires the optional D050S DC Charging Enhancer (manufacturer FAQ).BLUETTI source ↗ · reviewed 2026-09-24
Dual AC
≈ 5 Hours at 700W (Extra adapter REQUIRED)BLUETTI source ↗ · reviewed 2026-09-24
Charging equipment and limits
The optional T500 adapter supplies up to 500 W. The separate solar input accepts 12–60 V, 10 A and 200 W. The optional D050S provides another documented charging route; solar or vehicle compatibility depends on the selected cable and input.Reviewed manual scope: 1–18 (complete English manual; blank page 17 checked)BLUETTI source ↗ · reviewed 2026-09-24
Charging-time assumptions
The manual estimates 6.6–7.1 hours with a 500 W T500 adapter and 4.9–5.4 hours using the documented 700 W dual-input setup. Actual charging slows with temperature and state of charge.Reviewed manual scope: 1–18 (complete English manual; blank page 17 checked)BLUETTI source ↗ · reviewed 2026-09-24
Max Input
700W, With AC Adatper + Solar Input SimultaneouslyBLUETTI source ↗ · reviewed 2026-09-24
Solar
≈ 15.5~16 Hours at 200W (With prime sunshine, ideal orientation and low temperature)BLUETTI source ↗ · reviewed 2026-09-24
Solar Input
200W Max., VOC 12-60VDC, 10ABLUETTI source ↗ · reviewed 2026-09-24
Solar + Solar
≈ 5 Hours at 700W (D050S DC Charging Enhancer REQUIRED)BLUETTI source ↗ · reviewed 2026-09-24
Configurations & compatibility
240V Split Phase Bonding
Only as part of a supported AC300 split-phase system; the B300 battery has no AC inverter.BLUETTI source ↗ · reviewed 2026-09-24
Expansion configurations
AC300 supports up to four B300 batteries (12,288 Wh total). AC200MAX supports up to two B300 batteries (8,192 Wh including the station).BLUETTI source ↗ · reviewed 2026-09-24
Native expansion configurations
Up to four B300 batteries with AC300 provide 12,288 Wh. AC200MAX supports two B300 batteries for 8,192 Wh total. These extra batteries increase storage; they do not independently provide AC output.Reviewed manual scope: 1–18 (complete English manual; blank page 17 checked)BLUETTI source ↗ · reviewed 2026-09-24
Dimensions & Operation
Dimensions (LxWxD)
20.5 x 12.5 x 10.5in ( 52 x 32 x 26.6cm)BLUETTI source ↗ · reviewed 2026-09-24
Management System
MPPT Controller, BMS, etc.BLUETTI source ↗ · reviewed 2026-09-24
Size and operating limits
36.1 kg; 520 × 320 × 266 mm. Charge at 0–40°C; discharge at −20–40°C. App status is available through the connected AC300 or AC200MAX.Reviewed manual scope: 1–18 (complete English manual; blank page 17 checked)BLUETTI source ↗ · reviewed 2026-09-24
Operating Temperature
-4-104℉ (-20-40℃)BLUETTI source ↗ · reviewed 2026-09-24
Pass-through Charge
YesBLUETTI source ↗ · reviewed 2026-09-24
Storage Temperature
-4-104℉ (-20-40℃)BLUETTI source ↗ · reviewed 2026-09-24
Weight
79.6lbs (36.1kg)BLUETTI source ↗ · reviewed 2026-09-24
Included equipment
Standard package
B300, expansion connection cable, MC4-to-XT90 solar cable, user manual, warranty card and quality-control certificate. Check legacy stock packages with the seller.Reviewed manual scope: 1–18 (complete English manual; blank page 17 checked)BLUETTI source ↗ · reviewed 2026-09-24
Warranty & Documentation
Regional manufacturer warranty policy
48 months.Exact regional policy match; Complete relevant official page in web retrieval text; checksum identifies the saved retrieval capture, not raw manufacturer HTML; preserve purchase-date eligibility and exclusions.BLUETTI source ↗ · reviewed 2026-09-24
Manufacturer warranty eligibility
Coverage starts with the original purchase and requires valid purchase evidence. BLUETTI restricts the warranty to the purchase country; unauthorized sellers, misuse and normal wear are excluded. Check the linked policy for claims and extension conditions.Exact regional policy match; Complete relevant official page in web retrieval text; checksum identifies the saved retrieval capture, not raw manufacturer HTML; preserve purchase-date eligibility and exclusions.BLUETTI source ↗ · reviewed 2026-09-24
Warranty
48 MonthsManufacturer warranty; eligibility, registration requirements, exclusions and purchase-region terms apply.BLUETTI source ↗ · reviewed 2026-09-24

Manuals & downloads

Questions about this product

FAQs
Can B300 work as a standalone UPS?
No. It has DC accessory outputs, but requires a compatible station for an AC backup system.BLUETTI source ↗ · reviewed 2026-09-24

Purchase details

Manufacturer product reference ↗

Seller prices, financing, promotions, shipping and returns are set by the merchant. Manufacturer warranties follow the exact product and purchase terms.

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