AC300 + B300K vs AC500 + B300S

Specs side by side, essentials runtime after the 0.85 inverter derate, and direct buy links. Not sure which fits? Run the sizing wizard.

AC300 + B300K

$1,699

Capacity
2.8kWh
Max capacity
22.1kWh
Output
3kW
Surge
6kW
Weight
113 lb
UPS
20 ms
Essentials days
1.1 days
$/kWh-cycle
$0.207
Capabilities
expandable

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AC500 + B300S

$2,299

Capacity
3.1kWh
Max capacity
18.4kWh
Output
5kW
Surge
10kW
Weight
150 lb
UPS
20 ms
Essentials days
1.2 days
$/kWh-cycle
$0.252
Capabilities
expandable, output_240v

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