Our upgrade kits using ASI BAC855 controllers draw more current than a stock BBSHD or Ultra/G510 controller. To get the most out of your upgrade you need to make sure that your battery is capable of supplying sufficient current to the motor. By doing this check you will be aware of any limitations with your battery before you ride and setup the kit to take this into account. That way you can still enjoy the other advantages of the ASI controller and upgrade your battery later.
The main thing you will need to determine is the maximum continuous current in amps which can be drawn from your battery. If your battery has less than 50 amps for this rating then the chances are you will need to limit the amount of current drawn by the controller to prevent the bike from cutting out. Well actually it is the batteries management system or BMS that is cutting power. It does this to prevent damage to the cells from too much current being taken at any one time. In terms of riding it will be annoying cut outs of power requiring a reset of the bike.
You should easily be able to get this information from your battery manufacturer or supplier. If you have not bought a battery already then you can use this information to purchase one that meets the requirements of the High Voltage Kit.
Recommended Battery Specifications for HV Kits
52 Volts - 60 amps continuous draw - 6+ Parallel Groups
72 Volts - 50 amps continuous draw - 5+ Parallel Groups
If your battery does not meet these requirements while you can still use it but you will need to limit the power draw in the ASI controller. You can use this guide here. If you have not already purchased a kit then we can preconfigure the controller to take your battery into account so it will be ready out of the box.