Thread: Correct battery for 2011 tdv6 D4

Craig - at just $375 delivered for an SSB SS88Ti you may as well just get an AGM stop start battery.

When used in non-stop start applications, SSB extend the warranty from 24 months to 36 months.

Edit: If the 2.7 D4 is like the D3, the original battery would have been a Calcium type from either Varta or Bosch.

What DiscoDB said,the original battery was a standard wet cell.

When they failed,LR,under warranty was replacing them with AGM.

The vehicle doesnt have a BMS,and i am pretty sure no smart alternator either.

Tim may chime in with more info.

Originally Posted by scarry

What DiscoDB said,the original battery was a standard wet cell.

When they failed,LR,under warranty was replacing them with AGM.

The vehicle doesnt have a BMS,and i am pretty sure no smart alternator either.

Tim may chime in with more info.

I thought that all D4s would have a BMS ?

Originally Posted by loanrangie

I thought that all D4s would have a BMS ?

Only 3.0L from memory,not 2.7.

Originally Posted by loanrangie

I thought that all D4s would have a BMS ?

2.7 D4 actually runs D3 algorithms but all D3 alternators have a SMART type operation. Just not as advanced as the D4.

While the D3 charging system can run up to 15.0v You should still be able to use the SSB AGM cranking battery as it will tolerate up to 15.0v safely.

While slightly off topic, can anyone supply reliable voltage figures for a D3 or 2.7 D4, showing the lowest voltage the alternator operates at?

Reason I ask, when I had my D3, more than 14 years ago now, I remember seeing voltages down to as low as 13.4v but do not remember ever seeing anything lower.

I specifically remember the 13.4v as this was a particularly low operating voltage back then.

Again the reason I ask, is that back then I did not have the Data Logging gear I now have and could not monitor the voltage all the time, and I am hoping someone has something like a BM2 Bluetooth Battery Monitor setup on their D3, so we can see just how low the voltage goes under normal use.

If the D3 voltage does not go below 13.4v, you may actually be able to use both a lithium auxiliary battery and a lithium cranking battery, charged directly from the D3 alternator.

My 2.7 D4 generally sat around 13.9V,maybe 14.0V once or twice.

I cant remember ever seeing it any higher,but did see it around 13.5V at times.
That was using a voltage readout device in the cig socket.

Originally Posted by drivesafe

While slightly off topic, can anyone supply reliable voltage figures for a D3 or 2.7 D4, showing the lowest voltage the alternator operates at?

Reason I ask, when I had my D3, more than 14 years ago now, I remember seeing voltages down to as low as 13.4v but do not remember ever seeing anything lower.

I specifically remember the 13.4v as this was a particularly low operating voltage back then.

Again the reason I ask, is that back then I did not have the Data Logging gear I now have and could not monitor the voltage all the time, and I am hoping someone has something like a BM2 Bluetooth Battery Monitor setup on their D3, so we can see just how low the voltage goes under normal use.

If the D3 voltage does not go below 13.4v, you may actually be able to use both a lithium auxiliary battery and a lithium cranking battery, charged directly from the D3 alternator.

Lowest I've seen is 13.2 and highest 14.5.