AC500 + B300S AC500 + 2× B300S vs DELTA Pro Ultra

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

AC500 + B300S AC500 + 2× B300S

$3,598

Capacity
6.1kWh
Max capacity
18.4kWh
Output
5kW
Surge
10kW
Weight
150 lb
UPS
20 ms
Essentials days
2.4 days
$/kWh-cycle
$0.197
Capabilities
expandable, output_240v

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DELTA Pro Ultra

$4,099

Capacity
6.1kWh
Max capacity
90kWh
Output
7.2kW
Surge
10.8kW
Weight
186.4 lb
UPS
20 ms
Essentials days
2.4 days
$/kWh-cycle
$0.224
Capabilities
expandable, fully_mobile, output_240v

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