Any application involving a secondary battery or solar panel- please refer to manual or web page for fitting instructions.
No, it works only with lead acid batteries.
The D250SA has a wiring harness with a black and a red wire, the black wire must be earthed / grounded to change the charging voltage for AGM.
Close to the secondary battery and as cool as possible.
Please refer to the manual "D250SA Function indications" for explantion of light sequence.
No, you only require the service battery to be lead acid.
The recommended size of panel is 50-300W.
The D250SA has a wiring harness with a black and a red wire, the red wire must be connected to an Ignition signal wire +15 (DIN 72552).