to Solenoid or Relay
||It is not fully
automatic. Batteries are combined when ignition is ON, or by manual switch.
If the alternator fails, both batteries will discharge.
operation. Batteries are combined only when voltage is appropriate for
charging whether the engine is running or not. The backup battery will not discharge
as a result of alternator output loss!
substantial power, drawing 1 to 3.5 amps (12 to 42 Watts) when ON. This can drain a
battery if left ON overnight.
All solid state
electronics consume less than 0.012 amps (0.14 Watts) when ON (most of this is for the LED
indicator). This would take at least 6 months (with no charging operation) to drain a 60
AH battery if manually left ON!
mechanical contacts touch, they provide a very fast transition from open circuit to closed
circuit resulting in short pulse high inrush current. When switched open, the
contacts spark and over time, the contacts will wear out and sometimes will not open due
to sticking. Some mechanical contacts also tend to bounce, causing this on/off
condition multiple times in the first few milliseconds.
|Again, with all
solid state electronics, the ON and OFF transitions (although fast) are controlled and
limit inrush current over the first 2 milli-seconds. There is no sparking to
cause degradation of the product. The electronics provide a positive ON/OFF
transition with no bounce characteristics.
||Solenoids or relays
tend to be bulky with a non-uniform size. Connections tend to be in multiple
orientations. In some cases, this can hinder installation and protection from
BIC units are compact in size and all the connections are oriented in the same way for
convenient installation and protection.
cold weather, solenoids or relays can fail to operate, especially if not environmentally
|The colder the
weather, the better the Hellroaring BIC units perform. The already very low
Resistance decreases further allowing even more current when you need it most!
||A Solenoid's contact
resistance is not very repeatable. Over time, the contact resistance can vary
substantially from one energize to the next. Compare the diagram below.
between the terminals are very repeatable and predictable. This makes it ideal for
parallel operation to share load currents equally.