have been so pleased with this product, they have purchased again for
other vehicles or applications. The following customer responses
were unsolicited and quoted with their permission.
We haven't updated comments for several years (a decade or so). Here is a more recent comment from Oct of 2017, Walter Scott had this to say:
Thank you for the quick and very helpful response! Everywhere I've read (various forums), people rave about your excellent customer service and I can agree that both iterations I've had with you (bought remote a while back) back up these experiences. Just wanted to let you know that you have a stellar reputation and it's through interactions just like this. Thanks again!
The comments below were from customers before 2008 when we had stopped noting them for some years:
Tom Parker was
so impressed with the Hellroaring backup system, he wrote this to Land Rover:
"Just recently installed Hellroaring's BIC-75300
battery isolator/combiner in
my 98 Discovery for battery backup and winch boost. Investigated
Painless and Wrangler's stuff before my purchase and this
stands head and shoulders above the rest."
Brian Lathrop had this to
say about his Jeep installation:
"My BIC 75300 and remote kit arrived on Friday as
promised. Your instructions told me exactly what I'd
need to pick up in order to do the install. I bought
the parts I needed and had the unit installed in my
Jeep and operational in about an hour. It was a
Here is what Andy Krapcha had to say about
his Boat installation:
purchased the 75300 unit for my boat and must say that the
installation went well and is a very "clean" method of providing battery
backup as compared to rotating switches and other crap. "
Eric Spritzer had these comments regarding his Jeep backup installation:
for your help.
Also. I must add that the construction, kitting, packaging etc. of the
and the remote module were top notch. It's been a long time since I've
that kind of pride and care in the details. All the parts were there
extras for the things you will invariably drop and loose; preformed
resistors and diodes fit dead-on with no question as to orientation.
all, a class act rarely seen.
Chris McCrate had this to say about his 4 x 4 installation:
"Hi Mike. I did it. After my first mount
location error, I moved the
position, connected everything WITHOUT GROUNDS. Reviewed all, then
connected the ground connections.
The BIC75300 worked exactly as advertised. :-)
The unit so impressed my buddy, he may be calling soon. He has
the large relays, or the cheap and large isolation kits. I will
your product to all that I know that may be interested ..."
Chris Maytag had this to say about his BIC-75150A installation.
Just wanted to say that I picked up my unit today at the mailbox, and
delightful afternoon installing it, running cables, and fabricating a
enclosure. I'm impressed enough by your product to write to say
'thanks'...it's nice to receive a well thought out product, and to find
many installation aids. While I did have to go to the shop for a few
having so much of what's necessary included was a nice touch.
Paul Daniels on his Bronco installation:
Thank you for your quick response. I just
wanted to let you know
how pleased I am with the product and the ease of installation.
Ronald Kay on his snow plow installation:
your product last week and it arrived here on Tuesday as
promised. Very simple to connect and is working fine. I
used the basic auxiliary battery set up as per your plans. Your
product is an excellent concept, giving the advantages of diode type
isolators and solenoids in one product. I also like the automatic
operation that is built into the unit for different configurations,
eliminating the need for toggle switches or microprocessor based
controls. I found the instructions to be a little difficult to
follow, but I am otherwise satisfied with product and company.
Your quick reply to my initial inquiry and excellent service puts to
shame any similar business I have ever dealt with in Canada.
Thank you.. Ronald Kay
Charles Mosher's install in Police Vehicle
Over the years,
we have continued to add more lights and equipment to our fleet of
police cars. In the fall of 1996 we added video cars to our
fleet. The drain on the vehicle batteries caused many of our
batteries to fail. It became more and more common to start a duty
shift with a battery jump start. Patrol vehicle batteries soon began to
be replaced more frequently. The cost of batteries and
jumpstarts were secondary to the real problem. The fleet was
becoming less and less dependable, putting our community at risk.
In 2000, we replaced three of our six marked units. I research
battery isolators and found that Hellroaring Technologies had the
product we needed. When we set up our new vehicles, all were set
up with Hellroaring Technologies BIC 75150 Isolators and Optima Deep
Cycle Yellow Top batteries. A charging line was set up from the
alternator and the Optimas were mounted in the trunks. All of the
police and video equipment was switched to run from the trunk mounted
battery. Since that time our fleet vehicles, equiped with the
Hellroaring Technologies isolators, have not been jumpstarted once and
we have experienced fewer software problems with our video
equipment previously caused by low voltage problems. The
Hellroaing Technologies isolaters has been a lifesaver and proven
their worth over and over again.
Officer Charles Mosher
Eastern Mich. Univ. Police Dept.
Ypsilanti, Mich. 48197
Hanno's Backup install in the UK 7/2001:
did ordered the BIC-75300A +
Remote Module strait away, and the device arrived 5 days later in
I did fit every thing on
Sunday and it works great, all my problems with a permanent dimming
ignition light and damaged 2nd battery by using a SURE isolator 2-75A
with two BOSCH 75A batteries is gone.
I now use the backup
battery setup with a 90AMP Alternator, OPTIMA yellow and red top
battery as your advice.
to give you a idea what sort
of Vehicle I'm fitted your Kit, have a look at the following link:
at least, a compliment to the
written fitting instruction and the lot of information
on your WEB-page.
David Cox on his Backup install 2/2002:
I just finished the installation of my BIC-75300A - what a great
product! Installation instructions were very comprehensive, detailed,
and easy to follow. I had previously installed a diode-based
isolator that did not have the capability of hooking up the auxiliary
battery to the main like the BIC-75300A. I've had several dead
batteries and one alternator failure in my truck over the years (it's
now almost 9 years old); I was getting tired of hooking up the jumper
cables to boost the main battery. The alternator failure almost
caused me to collide with several other vehicles when the truck died
suddenly on a main highway. After I got it safely off the
highway, I then had to swap the batteries in order to make it home on
the auxiliary. I am thrilled to now have a system onboard that
will allow me to connect the two batteries at the flip of a
switch! This is the system I wish I had when I installed the
first diode-based isolator. This appears to be a well-engineered
unit and I look forward to many years of service from it. Thanks
also to Mike Hines for his patience with me during several phone calls
as I sorted out how to rewire my alternator subsequent to disconnecting
the old isolator.
Theodore Seivers on his Toyota Tundra Backup
I just wanted to drop you a line thanking you for your help in getting
dual battery setup off the ground!! You have a very nice product
install was straight forward (with the exception that I cannot get to
starter solenoid on my Toyota Tundra!) Mike helped me out over
and I just wired into the + term of my primary battery and it works
I did a write up of my install and you are more than welcome to use it
any advertising, custom testimonials, etc. It can be found at:
Geoff Maus on his boat install 12/2002:
A few weeks ago, you sold me BIC85300A, I just wanted to write to let
you know how happy I am with your product. I have installed the
unit, and have been out on my boat twice trying it out. Charging
voltage at the batteries is up to where it should be. Voltages
with my old diode isolator were down almost a full volt,
resulting in an undercharge condition. Prioritizing charge to the
starting battery, then to the deep cycles works perfectly in my
application. I just got a clamp on DC current meter,
and the next time out, I will check alternator output, and current
charging to the starting and deep cycle batteries.
Thank you for producing a great product that works like it should,
and at a reasonable price.
Inacio Manecas on his Backup install in
over five months of having installed my BIC-85300A, following your
provided step by step instructions for the Basic Backup Battery Setup,
like to convey to your company (and yourself), that I am very happy
product. It was easy to install and it has always behaved beyond
Thank you for such a great product.
I am a customer based in a remote country (Mozambique,
somewhere in southeastern Africa) and the installation of the BIC was a
necessity, as I venture a lot into the forest, and there is virtually
(and no way) to get rescue if stranded with a flat battery. And it had
before :>), now no more, thanks to this product.
A fully satisfied customer
Steve Cooper on his LandRover backup battery
"The first time
out, I left my high current fridge running overnight. The main battery
was completely drained - even the clock stopped! I flipped the remote
switch forward to combine the batteries and the truck started right up.
I had tried the same thing with my old setup a few months earlier - the
aux. deep cycle was completely drained - and all that happened when I
tried to start was a blown ignition fuse. It wasn't until I
disconnected the drained aux. battery from the conventional isolator
that I could stop blowing fuses and start the truck. What a pain in the
ass that was.
I was also loosing almost 1 volt from the alternator to the battery
with my old isolator.
That is all history with the Hellroaring/Odyssey setup - it's awesome."
Here is a link to his write-up:
James Culbertson on his Jeep Wrangler YJ
Unit arrived in
a very timely manner and very well packaged. The instructions
were straightforward and my install went without a hitch. This
was for a dual setup in a YJ Wrangler with a winch and welder.
The unit performs flawlessly and takes up very little
valuable firewall space. Many thanks to the exceptional
service provided by Mike and the excellent performance I get from his
James Wilton after two years of use:
off let me say that I bought the BIC 85300A a couple of years ago I
would have to put it on the top of the list of Best Modifications that
I've made to my truck. I haven't worried about my battery since
the day I put the system in.
Robert Fuller on his Toyota Camry Auxiliary
battery install 9/2003:
don't know how often a customer writes just to thank you, but that's
the purpose of this note. You may recall our telephone conversation a
couple of weeks ago regarding my recent purchase of your Model
BIC-85300A for isolating/charging an auxiliary battery in the trunk of
my 1997 Toyota Camry LE V6. Though I wanted the option of using
the auxiliary battery for starting (hence, my purchase of the 85300,
and not the 85150), if necessary, the primary reason for the purchase was the isolation and charging of the auxiliary
battery. As I mentioned, I'm a ham radio operator often assigned to
event and emergency communications. My radio draws about 10 amps on
receive, and about 20 amps on transmit. After several hours of
operating, with the engine off, my Concorde LIFELINE® 105 AH auxiliary
battery can be quite depleted!
Mike, you certainly provided good advice for this
installation! As I mentioned on the telephone, I probably should have
bought the 85150 for this purpose, but I decided to go ahead and use
what I had. I used the auxiliary battery configuration, mounting both
the BIC and the remote unit on the lower instrument panel inside the
passenger compartment. Both units are very handy there, and aren't in
the way of anything! I used 8 AWG marine grade cable for both battery
runs (5' to the starting battery, 12' to the auxiliary in the trunk).
The smaller gauge cable was very easy to work with, and I was able to
hide all of it behind existing Toyota panels. Of course, as soon as I
tested the unit, it worked perfectly. Furthermore, neither the BIC nor
the charging cables are even getting warm!
This is a fine product, Mike, and you've certainly
included just about everything anyone would need for a first class
installation. A couple of trips to Home Depot and West Marine were
necessary, but that was for the battery cables and the hardware I
needed to mount the units to plastic panels. Nice engineering job, Mike!
Thanks, again, for an extraordinarily well-designed
product, and for your equally extraordinary technical support — not to
mention one of the most useful and informative web sites on the
Internet! As we say in Dabronx, "You da Man!"
Consider a Hellroaring BIC today!