Battery-Monitor BLS
REV 1A – APR 2019 - Software Version 1A
page 10
of its service life and needs to be replaced. The factory default is 95%. The CEF is automatically
adjusted in operation by means of a moving averaging over the last 4 cycles.
4.3.6 Cycle depth
The cycle depth indicates by what% value a battery must be discharged and charged for a charge
cycle to be counted. For starter batteries should be a value between 10-20% and for GEL batteries
can be set up to 50%. The value represents the cycle life of the battery, i. How much can the battery
be discharged without reducing its life.
4.3.7 Peukert coefficient
The capacity of lead-acid batteries is usually stated for a 20-hour discharge. This means, for example,
that a 100 amp-hour battery can deliver 5 amps for 20 hours before the battery runs out. If the
discharge current is higher, for example 10 amperes, then the battery is unable to deliver the full
100 ampere hours. In this case, the battery voltage drops below the lower limit of 10.8V for 12V
batteries before the battery has delivered its rated capacity.
This relationship can be mathematically determined with the Peukert equation.
In the residual time function, this equation is used to adjust the remaining time at high discharge
rates. Under normal circumstances, the Peukert exponent need not be changed.
Usually, for lead batteries, unless different values are available, the Peukert exponent is set to 1.27,
for lithium systems to 1.02.
4.3.8 Desig2
This name is displayed in the battery symbol of the additional battery and is used for unique
assignment.
4.3.9 Desig3
This name is displayed in the battery symbol of the additional battery and is used for unique
assignment.
4.3.10 Device info
The serial number of the connected shunt and its software and hardware status are displayed. Via
the item UPDATE, a firmware update can be added to the shunt if a corresponding file is available
on the SD card.
4.4 Battery charger
The following settings can be made:
- charging characteristic
- Charge Control (control of the charging process by the charger or the battery monitor)
- Info which charger is connected (ACExx) and its software version
- Software version of the ACE-LIN interface
