Battery Charger Sizing Calculator

A = (1.15 X Ah / H) + L

  • A = DC output rating of charges
  • 1.15 = Efficiency factor to return 100% of amp hours removed from a lead acid battery.
  • 1.4 = Efficiency factor to return 100% of amp hours removed from a NiCad battery.
  • Ah = Battery amp hours (Removed)
  • H = Hour recharge time
  • L = Amp continuous load on system while recharging the battery