Hellroaring Technologies
BIC-75300A
Battery Isolator/Combiner
Note: This page will be updated
soon with more details on our new versions, the BIC-85300A (replaced the BIC-75300A),
BIC-95300A, and BIC-95300B. Essentially, these models are the same except that the
BIC-85xxx has an improved ON resistance by 30% less, and the BIC-95xxx has an improved ON
resistance by 50% less. This means even less heat generated! So, they can
handle incrementally higher continuous currents. The BIC-95300B goes on to provide
built-in Transient Suppression, and the Sense resistor, and external diode built-in to the
unit. So, this makes for an even simpler, cleaner install. Should you have
questions regarding the differences, feel free to send e-mail or call with your questions.
Because the Sense function is built-in to the "B" terminal, there is no
Sense terminal on this model... See the image below.
BIC-95300B
Click this link to download the instructions (.pdf)
Our BIC-75300A is the most
versatile isolator or combiner on the planet. No other
battery isolator has as much capability in such a compact package!
(That is, except for our newest
versions, the BIC-85300A, and BIC-95300A or B.) If you leave its center conductor open,
the unit will behave just like a BIC-75150A (except the "B" version). But
you can utilize this center conductor to split the current into two halves allowing double
the current carrying capacity while sacrificing one polarity isolation. For certain
applications such as a backup starting battery, winching, and snowplow applications, this
is an ideal configuration. As with the BIC-75150A, this unit can
be wired in parallel to increase the total current carrying capacity.
Compare the features below:
Features |
Typical
120 Amp, 2 Battery
Diode Isolator |
Manual
Solenoid
Or Relay
System |
Hellroaring
BIC-75150A |
Hellroaring
BIC-75300A |
Automatic Isolation
of 2 batteries |
Yes |
No |
Yes |
Yes
(multiple configuration options) |
Automatic Isolation
of 3 batteries |
No (yes, other models) |
No |
No |
Yes *
(multiple configuration options) |
| No Spark switching |
N/A |
No |
Yes |
Yes |
| Built-In capability to wire for cranking or winching current boost |
No |
Yes |
Yes |
Yes |
| Built-In capability to configure for engine cranking when main
battery has zero charge remaining. |
No |
Maybe |
No
(will likely crank if allowed at least 15 minutes to transfer charge) |
Yes |
| Unit operation "ON" current draw is less than 0.012 Amps |
N/A |
No |
Yes |
Yes |
| Does not consume and dissipate power due to Main battery or Main system current |
No
(it does consume main system power!) |
Yes |
Yes |
Yes (depends on hookup configuration) |
| Can be used with up to 200 Amp alternator |
No |
Maybe
(depends on auxiliary system load) |
Maybe
(depends on auxiliary system load) |
Yes (depends on hookup configuration) |
| Power dissipated with 120 Amps from the alternator divided with 60 amps in main and 60
amps in auxiliary system |
About 120 Watts |
< 10 Watts |
About 36 Watts |
About 36 Watts
or About 7 Watts
(depends on which configuration you use) |
| Voltage drop at 5 amps to the auxiliary battery system |
about 0.8 Volts |
< 0.01 Volts (When New..) |
< 0.05 Volts |
< 0.05, <0.02, or < 0.01 Volts
(depends on configuration used) |
| Has Built-In visual indicator used for system diagnostics / status |
No |
No |
Yes |
Yes |
| Has Remote indicator connection |
No |
No |
Yes |
Yes |
| Uses premium quality corrosion resistant connection hardware |
No |
No |
Yes (solid brass and Stainless Steel) |
Yes (solid brass and Stainless Steel) |
| Physical size less than 30 cubic inches |
No |
Maybe |
Yes |
Yes |
| Physical height less than 2 inches |
No |
No (Typical) |
Yes |
Yes |
| Inrush Currents Controlled |
N/A |
No |
Yes |
Yes |
* Partial isolation with three batteries. Consult tech support if
considering three batteries with one unit.
The Hellroaring BIC-75300A is ideal for use in:
Note: The BIC-75300A works great for typical
gasoline engines as a backup starting system, but use on a typical automotive Diesel Engine will
require two units wired in parallel for
satisfactory results!
| This is what you get when you order the BIC-75300A: |
 |
| BIC-75300A unit |
| Sense Resistor |
| Small external diode |
| Terminal lugs |
| Nuts |
| Heat Shrink |
| Prefabricated 6 AWG jumper wire |
| Prefabricated ground wire with fuse |
| Sheet Metal Screws |
| Tie Wraps |
| Cable Clamps |
Click here for the BIC Specifications.
| For high amp circuits such as the backup battery setup, we have
available a fuse (150 amp) and fuse holder set. Order part number FS-150A. |
 |
New model !!
Our New BIC-85300A is
identical to the BIC-75300A, but with 30% lower resistance than the already very low ON
resistance of the BIC-75300A. This allows slightly higher continuous current
handling capability. And newer yet, the BIC-95300A and B versions with 50% lower ON
resistance of the BIC-75300A. We are now stocking only
the BIC-85300A, BIC-95300A, BIC-95300B, BIC-85150A, BIC-95150A, and BIC-95150B models.
Pricing
Affordable!
| Description |
Model # |
Unit Price |
| Battery Isolator/Combiner |
BIC-85150A |
$139.95 |
| Battery Isolator/Combiner |
BIC-95150A |
$149.95 |
| Battery Isolator/Combiner |
BIC-95150B |
$164.95 |
| Battery Isolator/Combiner |
BIC-85300A |
$159.95 |
| Battery Isolator/Combiner |
BIC-95300A |
$169.95 |
| Battery Isolator/Combiner |
BIC-95300B |
$179.95 |
| Remote Module |
Remote Module |
$42.95 |
No Sales Taxes!
Shipping cost is only $9.50 to anywhere in the continental United States and only
$29.00 to Canada.
Click here to order! - BIC Sales
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