Yes, a battery can have voltage and no amps. This occurs when there is no closed circuit or load connected, meaning no current (amps) is flowing despite the battery holding a potential difference (voltage).
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EE The PV panels will supply their output of 48V to a DC-DC converter that is required to operate ir step up (boost) mode to supply around 72 V to the DC bus that feeds a single-phase inverter which in turt will produce the standard 230 V AC as the plug for charging EV battery.
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The energy storage system is essentially a straightforward plug-and-play system which consists of a lithium LiFePO4 battery pack, a lithium solar charge controller, and an inverter for the voltage requested. Price is $387,400 each (for 500KWH Bank) plus freight shipping from China.
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Battery chemistry: LFP (Lithium Iron Phosphate): Safer, longer lifespan (10,000+ cycles), better temperature tolerance (e., Tesla Powerwall, LG Chem).
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