User Manual

6. BMS

The BMS (Battery Management System) allows the scan tool to

evaluate the battery charge state, monitor the close-circuit current,

vehicle, and charge the battery via the diagnostic socket.

NOTE: This function is not supported by all vehicles. The

screens shown in this chapter are examples; actual test screens

may vary for each vehicle being tested. Observe the menu titles

and onscreen instructions to make correct option selection.

6.1 General Battery Information

The vehicle may use either a sealed lead-acid battery or an AGM

(Absorbed Glass Mat) battery. Lead acid battery contains liquid

sulphuric acid and can spill when overturned. AGM battery

(known as VRLA battery, valve regulated lead acid) also contains

sulphuric acid, but the acid is contained in glass mats between

terminal plates.

It is recommended that a replacement aftermarket battery has the

same specifications, such as capacity and type, of the battery used

in the vehicle. If the original battery is replaced with a different

type of battery (e.g. a lead-acid battery is replaced with an AGM

battery) or a battery with a different capacity (mAh), the vehicle

may require reprogramming the new battery type in addition to

performing the battery reset. Consult the vehicle manual for

additional vehicle-specific information.

NOTE: Reprogramming is not supported by the scan tool

currently.

6.2 Battery Operation

The Battery function allows you to evaluate the state of the battery

charging and register the battery replacement.

NOTE: The displayed message will vary depending on the

vehicle.

Take BMW as an example: