DC Panel Battery Sizing

Rated battery capacity and charger setpoints for a station or UPS DC panel.

Inputs

DC system voltage —

Emergency load current I_emg A

Emergency duration t_emg min

Continuous load current I_cont A

Backup duration T h

Cell type —

Number of cells N —

Ambient temperature °

Aging factor k_a —

Design margin k_d —

Note — Representative two-rate Ah sizing per IEEE 1188 / IEC 62485. Verify with the battery manufacturer and a certified engineer.