TurboStart SMARTCHARGER CHG25A, Руководство пользователя, Страница: 13 / 16

Turbostart SMART CHArGer USER GUIDE
FAQ’s
Calculating External Battery Charging Time
Charging time will depend on the amp-hour capacity of the battery and it’s DOD. DOD, short for the Depth
of Discharge, is used to describe how deeply the battery is discharged. If a battery is 100% fully charged, it
means the DOD of this battery is 0%, If the battery has delivered 30% of its energy, there is 70% energy
reserved, then the DOD of this battery is 30%. And if a battery is 100% empty, the DOD of this battery is
100%. DOD always can be treated as how much energy that the battery delivered. The following equation
calculates an approximate charging time:
Charging Time = CAP x DOD
CC x 80% where:
Charging Time = Battery recharge time in hours
CAP = Battery capacity in amp-hours
DOD = Battery depth of discharge in percent.
A fully discharged battery has 100% DOD.
CC = Charge current. The rated current output of the charger in amps.
80% = Typical charging efficiency for lead-acid batteries.
Example:
A TurboStart 16V AGM battery rated at 50 amp-hours is 60% discharged, that is, it has a DOD
= 60%. Charging time with an
SMART CHArGer
15A unit is calculated as follows:
Charging time = 50Ah x 60% = 1.3 hours (1 hours, 21 minutes)
25A x 80%
10