Excellent forum, many thanks for all the help and knowledge that is posted by members.
I am looking to replace the battery on a Croma 1.9 16v 150bhp 2006 model, can any member please state what the original specification was. I have looked at various parts & battery supply companies, most show battery type 027 with 60ah as the correct battery. Once the battery is removed and replacement fitted does the Croma require radio code or any other item I need to be aware of.

No code is needed for the radio. The majority are correct re the battery.

From the Fiat Croma Workshop Manual (16V 150BHP Diesel)

Voltage: 12V
Capacity (Ah) : 70 or 90
Intensity (A) : 450 or 440

I believe that Intensity = Cranking Power

I fitted a BOSCH S5 - 010 (5 Year Warranty)
A Halfords HSB110 is also OK (3 /5 Year Warranty)

Both these batteries are 85Ah and 800A CCA (SAE)

I've had no issues, either running with or fitting.

Radlet6 & s130 Appreciate your reply, the battery fitted at present is a Magneti Marelli 90ah. I thought it may have been upgraded by a previous owner, your information confirms it is the correct battery.Thank you.

Here you go - in a completely misleadingly titled thread...

https://www.fiatforum.com/croma-ii/220698-squealing-alternator-belt-diy-garage-job.html

60Ah sounds way too low to me, like they've taken whatever battery from their range happens to physically fit.

The solution is a posh standard-sized one. My Varta's still working perfectly 4 years later.

s130 said:

From the Fiat Croma Workshop Manual (16V 150BHP Diesel)

Voltage: 12V
Capacity (Ah) : 70 or 90
Intensity (A) : 450 or 440

I believe that Intensity = Cranking Power

I fitted a BOSCH S5 - 010 (5 Year Warranty)
A Halfords HSB110 is also OK (3 /5 Year Warranty)

Both these batteries are 85Ah and 800A CCA (SAE)

I've had no issues, either running with or fitting.

Click to expand...

90 Ah if your car is equiped with alarm and 70 without.

Good rule of thumb is to get the battery that fills the battery tray. When I had to get anew one I went to Halfords and the one they wanted to sell me was smaller in size than the one I bought to fit my sons Punto 1.2. So I went round the corner to a Varta agency who took one look at the one which was on and said "its done well to last this long" (4yrs) " its really too small for a diesel at 90amph. He put the one recommended for BMW for there 4x4 which just fitted the tray rated at 105amph. Been good for the last 4 winters and when checked by them again was bang up to spec and as good as new. Only £15 more than the one at Halfords!!!!

I think I've got a vague recollection of Halfords' recommendation being completely bonkers - I think someone's put the wrong number into a spreadsheet somewhere along the line.

I'm surprised you managed to squeeze in 105Ah though - 85 was the best I could get (from Varta as it happens), but this was 4 years ago now. Still working fine though.

There are motorhomes with smaller batteries. God knows why it needs so much juice.

Doofer said:

I think I've got a vague recollection of Halfords' recommendation being completely bonkers - I think someone's put the wrong number into a spreadsheet somewhere along the line.

Click to expand...

My HSB110 comes NOT from Halfords "vehicle listing" but from battery capacity/cranking back to type number.

Doofer said:

I think I've got a vague recollection of Halfords' recommendation being completely bonkers - I think someone's put the wrong number into a spreadsheet somewhere along the line.

I'm surprised you managed to squeeze in 105Ah though - 85 was the best I could get (from Varta as it happens), but this was 4 years ago now. Still working fine though.

There are motorhomes with smaller batteries. God knows why it needs so much juice.

Click to expand...

When I had the Varta checked out I asked them if it was ok to have such a larger than specified ampH battery and how would that affect the alternator( knowing the probs they have been). They said that with the new plate technology this was not such a problem and as our cars have got more " sophisticated" the need for more ampH has risen.
If you look at it in the old days it was almost a crime against batteries to start with your lights on, I can remember my dad giving me a round of "f**ks" for doing it.
Now we have starter/lights /glow plugs/alarms and all the other ECU`s and god knows what is running in the background!
I`m convinced that biggest is best

I suspect the drive for energy efficiency hasn't yet reached car electronics. I have a home TV that consumes less than 0.1W when on standby.

I suppose the volumetric alarm sensors are always going to consume some power, as they need to transmit constantly. Even so, it does seem that nobody is putting much effort into saving power. I suppose that in comparison with aircon, heater elements and headlights any potential savings seem pretty trivial, so it's not worth bothering. Hence we end up needing over 1 kWh just to leave the thing parked for a bit.