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Battery Math
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Bluetti AC50B

$399

1.12 Wh per dollar, 9% below the 1.23 Wh per dollar median across the 17 stations in this database (higher is better).

Derived numbers

Usable energy to an AC load
381 Wh
Nameplate capacity after inverter losses, assuming an inverter that is 85% efficient.
Watt-hours per dollar
1.12 Wh per $
Cost per kilowatt-hour cycled
$0.33 per kWh
Price spread across 3,000 rated cycles, assuming linear fade to 80% of capacity.
Watt-hours per kilogram
66.87 Wh per kg
Watts per kilogram
104.48 W per kg
Hours of full sun to refill
2.2 h
From empty, at the maker's maximum solar input of 200 W.

Full specifications

Battery

ChemistryLiFePO4
Nameplate capacity448 Wh
Cycles to 80%3,000 cycles
Expandable to–

Output

AC output (continuous)700 W
AC output (surge)1,000 W
AC outlets2
Waveform–
USB-C output (max per port)65 W
USB-C ports–
USB-A ports1
12 V DC output120 W
Boost mode output–

Input

AC charge input580 W
Solar input (max)200 W
Solar voltage range–
Car charge–
Recharge 0 to 80% (AC)45 min
Full recharge (AC)70 min

Physical

Weight6.7 kg
Dimensions (L x W x H)280 x 200 x 220 mm
Ingress rating–
Wheels–

Features

App control–
Wi-Fi–
Bluetooth–
Display–
UPS switchover–
Noise–
Warranty–

Sources

Every figure above comes from one of these pages. The dates are when each was read.

Where to buy

Bluetti

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