Thread: D3 battery

Originally Posted by PeterOZ

ok took the plunge

SSB Ss88Ti AGM
1180CCA
92 A/H

$354 delivered from fleabay including a discount code.

Time to retire my 7 or 8 year old Bocsh

Do you have a link or name, sounds a lot cheaper than I can find.

Thanks Bulletman

Originally Posted by Bulletman

Do you have a link or name, sounds a lot cheaper than I can find.

Thanks Bulletman

eBay

Originally Posted by PeterOZ

ok took the plunge

SSB Ss88Ti AGM
1180CCA
92 A/H

$354 delivered from fleabay including a discount code.

Time to retire my 7 or 8 year old Bocsh

Arrived a bit late to the party on this one.

We have just had this exact battery die.
42 month warranty and dear as poison.

I got it pretty right as had a mate In the trade.

Died after 2 years, now has 332 cca ( I may chase warranty) but have chosen to replace with the battery my brother is running and has had a better run with, an mf88h supercharge. Approx $150/$200 cheaper

One issue I've considered with running an AGM start battery on a D3, is that they charge at about 15.5 volts for some time after start, and most AGM specs suggest not to charge over 14.4 or 14.6.
Optima specs used to state 13.8, that had now changed took 15 volts.

Someone will no doubt chime in and point out that when that spec is listed, they are referring to a battery charger which runs for hrs, not an alternator that pushes up for 20 minutes and then scales back.

I take this on board but also question the damage that continual day after day running like this could cause.

For instance, our school run is 20 minutes return, so five days a week our battery gets charged at 15.5 volts then turned off.
I don't know if this is the same on the arvo run but I definitely see it In the morning when I do the run.

Is this detrimental?

Most likely we just got a faulty battery, but it's been in the back of my mind since I put the SSB in.

So Who knows...

Cheers
James

Originally Posted by shack

One issue I've considered with running an AGM start battery on a D3, is that they charge at about 15.5 volts for some time after start, and most AGM specs suggest not to charge over 14.4 or 14.6.

I see that as the setpoint in the IID tool but I've never seen more than 14.4 on the car. Both as real ECU measured voltage and with a meter. I always thought the commanded setpoint was fantasy.

in fact my mf88 specs 14.8 and I've never seen the car hit that, so every couple of months i put a power supply on it just to bring it up for a while.

Originally Posted by BradC

I see that as the setpoint in the IID tool but I've never seen more than 14.4 on the car. Both as real ECU measured voltage and with a meter. I always thought the commanded setpoint was fantasy.

in fact my mf88 specs 14.8 and I've never seen the car hit that, so every couple of months i put a power supply on it just to bring it up for a while.

Ours will sit at 15.5 , I believe that's normal, I could be wrong, but maybe yours is "undercharging" ?

It's also possible that as we run a fridge, the alternator goes into some sort of fast charge mode to get the battery up quick when it's sensed as being a little low.

Cheers
James

Originally Posted by shack

Ours will sit at 15.5 , I believe that's normal, I could be wrong, but maybe yours is "undercharging" ?

It's also possible that as we run a fridge, the alternator goes into some sort of fast charge mode to get the battery up quick when it's sensed as being a little low.

Cheers
James

Where are you measuring that? Ours lives a sedate and unloaded life, but I still see the setpoint over 15V, it just never actually gets there.

I haven't played with it for a while but I'm sure I've seen 15.5V on one of those el cheapo meters that plugs into the cigarette lighter on my D3, usually just on start up.

My D3 only gets 13.7v to 13.8V