@Jean Mercier and @emax yes I do understand that the Victron device measures accurately and can measure the current (in both directions) but that wasn't my point.
I asked @DCPU 'why' he had got the expensive device as he doesn't have any specific requirement for it (ie critical power montoring) and that the unit didn't collect as much useful data (to the charging of both batteries problem) as the other, significantly cheaper units, did.
Yes @emax the BMW IBS can't be accessed remotely or through the OBD port but even when it can it's only 'alive' when the car is turned on.
Actually you can access the information from the fitted shunt, it's on the information screen, but only when the car is on.
But there is no historical data, you turn the ignition off and it stops measuring.
The low cost devices provide a realtime monitoring solution of both batteries which will show, in detail, what is happening to the batteries even when the car is switched off, 24-7-365.
They produce a graphical trace against time using available historical data.
Members have reported quite a significant drain.
Owners have reported dual battery systems faulting.
These low cost monitors will identify these issues, the Victron unit will too but it's not neccesary to spend over £240 when £40 will achieve the same result.
Why would you spend six times as much as the cost of 1 unit to get half the results ?
The Victron is a shunt and needs to interupt the neutral circuit directly at the battery.
It requires a lot of 'fitting'.
The low cost monitors connect across the battery (+ to -).
The low cost units can be easily and quickly removed and lleave no ytrace.
The can be easily and quickly refited to other vehicles and are in effect, more portable.
The BMW IBS is used to control the smart alternator ... the two 'monitors' to fault find (which is what we are trying to do isn't it ?), the expensive shunt does what ?
Make you feel important ?
And with regards to sending China data, why did you buy the units with GPS tracking ?
All you needed to do was get the type than monitors the state of the battery votages.
Your phone (if GPS is turned on) is sending GPS data back to evey app that is asking for it, these devices are no more insecure than anything else.
I asked @DCPU 'why' he had got the expensive device as he doesn't have any specific requirement for it (ie critical power montoring) and that the unit didn't collect as much useful data (to the charging of both batteries problem) as the other, significantly cheaper units, did.
Yes @emax the BMW IBS can't be accessed remotely or through the OBD port but even when it can it's only 'alive' when the car is turned on.
Actually you can access the information from the fitted shunt, it's on the information screen, but only when the car is on.
But there is no historical data, you turn the ignition off and it stops measuring.
The low cost devices provide a realtime monitoring solution of both batteries which will show, in detail, what is happening to the batteries even when the car is switched off, 24-7-365.
They produce a graphical trace against time using available historical data.
Members have reported quite a significant drain.
Owners have reported dual battery systems faulting.
These low cost monitors will identify these issues, the Victron unit will too but it's not neccesary to spend over £240 when £40 will achieve the same result.
Why would you spend six times as much as the cost of 1 unit to get half the results ?
The Victron is a shunt and needs to interupt the neutral circuit directly at the battery.
It requires a lot of 'fitting'.
The low cost monitors connect across the battery (+ to -).
The low cost units can be easily and quickly removed and lleave no ytrace.
The can be easily and quickly refited to other vehicles and are in effect, more portable.
The BMW IBS is used to control the smart alternator ... the two 'monitors' to fault find (which is what we are trying to do isn't it ?), the expensive shunt does what ?
Make you feel important ?
And with regards to sending China data, why did you buy the units with GPS tracking ?
All you needed to do was get the type than monitors the state of the battery votages.
Your phone (if GPS is turned on) is sending GPS data back to evey app that is asking for it, these devices are no more insecure than anything else.
Last edited:
