UPS for 400 Vac Grid, User Guide, doc. rev. 4
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3.4.
Battery
The UPS's battery bank provides backup power to the UPS and its load devices in the event that
the utility AC input fails. The batteries are housed in an external cabinet adjacent to the UPS. The
batteries are charged by the rectifier that supplies power to both the inverter and the battery
charger.
The battery cabinet should be installed as close to the UPS as is practically possible.
Fast-acting fuses (semiconductor fuses) must be used between the battery and the UPS.
Protect the batteries from moisture, dampness, and foreign substances.
A safe disconnect device must be used on each battery box.
The temperature of the battery's surroundings influences the batteries' useful lifetime.
The UPS supports the use of standard lead-acid batteries, and also lithium-ion batteries.
If you plan to use lithium-ion batteries you must supply your own BMS
(Battery Management System), and you must follow Solaredge special
instructions for lithium-ion battery setup.
The setup instructions are available from
https://criticalpower.solaredge.com/customer-service
