Calcolatrice Capacità Batteria Gratuita

Calcola la capacità della batteria in Ah.

W
V
hours
%
%

Total Battery Capacity

57.9 Ah

Load Current Draw10.42 A
Usable Capacity Needed46.3 Ah
Battery Energy2.78 kWh

Total Battery Capacity vs Load Power

Vedi formula →

Formula

## Battery Capacity Sizing Battery capacity must account for the load, duration, efficiency losses, and depth-of-discharge limits. ### Formula **Required Ah = (P / V) x Hours / Efficiency / DoD** where P is load power in watts, V is battery voltage, Hours is the backup duration, Efficiency accounts for inverter and wiring losses, and DoD is the maximum allowable depth of discharge (to protect battery life).

Esempio Risolto

500 W load on a 48V battery system for 4 hours, 80% DoD, 90% efficiency.

  1. 01Load current = 500 / 48 = 10.42 A
  2. 02Usable capacity = 10.42 x 4 / 0.90 = 46.3 Ah
  3. 03Total capacity = 46.3 / 0.80 = 57.9 Ah
  4. 04Battery energy = 57.9 x 48 / 1000 = 2.78 kWh