Date: 2017-12-15
Version: 1.0
Title: 2 X D250SA 40A
Starter battery:
Typically 55Ah to 100Ah for automotive applications.
A start battery should never be deeply discharged.
Service battery:
Size 40Ah to 600Ah. (2xD250SA)
When 20A with one D250SA gives to long recharge time
and alternator has a low voltage providing a low current
through SMARTPASS 120, a sulution is two parallel
connectet D250SA.
Batteries are connected in parallel to increase capacity
(Ah). Suitable deep cycle batteries should be used.
D250SA:
Install according to instruction manual.
Parallel connect two D250SA by connecting inputs with
each other and the same with the outputs.
Both unit must be connectet to ground.
Temperature sensor:
Attach the temperature sensor onto the service battery.
Alternator:
If the alternator is a ”smart alternator” that can adjust
voltage level by the engine control module or similar.
To get D250SA support a Smart alternator you connect
the Red Smart Alternator cable to the ingnition.
Wiring:
Please see instruction manual for suitable dimensions.
Please verify directive for applicable installation
regarding wiring.
A thick wire generate less voltage drop than a thinner
wire at high current.
Fuses:
If fuses are used, mount the fuses as close to each
battery as possible.
Suitable fuse size:
2 X D250SA: 50A
Please verify directive for applicable installation
regarding fuses.
Charge voltage:
You can choose between 14.4V and 14.7V (AGM) on
D250SA.
If you not connect the Black AGM cable you get 14.4V
If you connect the Black AGM cable to minus you get
14.7V.
