User Manual

5
FREQUENTLY ASKED QUESTIONS
Question: Why does the LED stay on after the vehicle is turned off?
Answer: The LED stays on (indicating the Smart Start
®
is on & the batteries are linked) until the
voltage drops to 12.7V (25.4V for SBI24). This can take a few minutes to many hours, depending
on size & state of charge of the batteries as well as load on the batteries. To test this feature of the
Smart Start
®
, with the engine turned off, turn the headlights on and the Smart Start
®
LED should go
out, this may take a couple of minutes.
Question: Is the unit protected against voltage spikes?
Answer: Yes, the Smart Start
®
SBI incorporates a number of spike protection components specifi cally
designed to reduce the risk of damaging the unit. The Smart Start
®
SBI is also designed to prevent any
spikes generated by the solenoid coil from affecting any vehicle equipment.
Question: What does the red LED indicate?
Answer: The red LED indicates the solenoid is activated and both batteries are connected together
and therefore are both being charged simultaneously. A fl ashing red LED during operation indicates a
fault. See Fault Indication page 4.
Question: Can the voltage limits and time delay settings be changed?
Answer: Yes! Both upper and lower voltage limits & on and off times can be changed. However, this
needs to be done at the time of manufacture and will incur a relatively minor cost.
Question: We are experiencing repetitive switching of our Smart Start
®
SBI. What could be causing
this?
Answer: This can occur for one of two reasons. Firstly, switching a poorly charged second battery
into the system loads the voltage at the Smart Start
®
SBI to below its lower voltage limit, which will
cause the Smart Start
®
SBI to switch back off.
Secondly, voltage drop due to cable length (Smart Start
®
SBI mounted too far from start battery) can
cause the voltage at the start terminal on the Smart Start
®
SBI to be lower than at the start battery,
which can also cause the unit to switch off. Voltage seen by the Smart Start
®
SBI will now rise again
until the Smart Start
®
SBI switches back on. This switching will continue until the cause of voltage drop
is removed. On and Off Time delays are built into the product to avoid the solenoid contacts chattering
in this scenario.
Question:
Can I use the Smart Start
®
SBI to control a load (e.g. fridge) without using an auxiliary battery?
Answer: Yes. The voltage monitoring is done on the start battery side of the unit. If a load is
connected on the auxiliary side instead of a battery, the unit will still operate when the start battery is
charged, providing power to your load.
Question: Does the internal LED illuminate when I use the external override switch?
Answer: Yes.
Question: Can I use my Smart Start
®
SBI to winch off both batteries?
Answer: Yes. We recommend that the Smart Start
®
SBI be wired so it automatically connects both
batteries when the winch is turned on, through use of the Start Assist feature on the override wire. We
also recommend the use of our 200Amp Smart Start
®
SBI for this application.
Question: Can I use the Smart Start
®
SBI on a positive chassis vehicle?
Answer: Yes. Please contact REDARC for further information.