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Hellroaring BIC-95150B, and BIC-95300B

Cranking Power

The Hellroaring BIC models were designed primarily as an automatic battery combiner for efficient charging of multiple batteries.     Either the BIC-95150B or the BIC-95300B model also has the capability to be manually switched ON to combine the batteries for drawing power from both batteries. But, only the BIC-95300B has the capability for full engine cranking power for a typical automotive engine.  The BIC-95150B can only assist a weakened main battery for cranking, unless the engine is a relatively small one. So, for applications using the BIC-95150B, we recommend that you don't rely upon its install for a pure Backup start situation. For that purpose, use the Backup battery setup.

The BIC-95150B can handle up to 150 amps for a significant power boost  when a main battery will almost crank (clicking solenoid) or cranks slowly. But, in a typical installation, we aim to limit the peak demand, to the Auxiliary battery side during charging, to about 60 to 80A by using 8 AWG wire and a minimum length of 20 feet along with 50A or 60A continuous rated circuit protection. So, this wire size and length will also limit the cranking voltage/current delivered to a starter. This is one reason it is insufficient for the full cranking load. But, as stated above, it can assist (provide a boost) with a weak main battery.

The BIC-95300B can handle up to 300 amps to fully crank your typical gasoline engine even with a completely discharged main battery.  To properly acheive this capability, you must use properly sized wiring and a properly rated (in terms of CCA) backup battery.   The backup battery should be (CCA) rated at least as high as the original vehicle manufacturer's main battery.  For this application, a higher CCA rating is better. 

If you have an unusual application that requires even higher currents (such as a full size Diesel Engine), then you can parallel the units as needed.  A typical automotive Diesel Engine will require 2 ea BIC-95300B units for backup cranking as well as two Backup batteries, if the engine requires two main batteries.  Large Diesel Engines may require more. We don't recommend attempting to use multiple BIC-95150B units for a full size Diesel Engine Backup start application because you would need 4 of them to do so. More typically, a pickup truck with a Diesel engine would more likely use one BIC-95150B for an Auxiliary battery setup such as for a slide-in camper application.

 

BIC-95150B

 

Number of parallel units

Maximum Cranking Current (Amps < 15S)

Continuous Current (Amps)

Peak Current Capability     (< 50 mS)

1

150

95

250

2

300

180

500

3

450

260

750

 

BIC-95300B

Backup battery Configuration

 

Number of parallel units

Maximum Cranking Current (Amps < 15S)

Continuous Current (Amps)*

Peak Current Capability     (Amps < 50 mS)

1

300

180

500

2

600

325

1000

3

900

475

1500

* Maximum

Note:  Appropriate wiring must be used.

 

 



Contact Information

For General Information, Sales, Technical or Customer Support:

Telephone: 406-883-3801
Postal address: P.O. Box 1521, Polson, MT 59860
Electronic mail: sales18@hellroaring.com
Sales/Pricing info: Sales page

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Copyright 1998-2018    Hellroaring Technologies, inc.
Last modified: 04/16/2018