Ford Focus Mild Hybrid Deep Sleep = Flat Battery?

sevenhills

Alanp said:

it seems that manufacturers are fitting cheap or sub standard batteries which seem more problematic with hybrid/ mild hybrid cars..

Lighter batteries to make their MPG figures better?

My old Zafira has had problems with the battery this winter. A combination of the battery not liking the lights and blower on, every time I use the car; they are short journies too.

My works vehicle has an isolator, being on stand-by 24/7 is a drain on the battery, with all this modern technology.

Alanp

People on the Toyota forum are suggesting that the keyless entry system is a big drain on the battery, mi puma had keyless too, so maybe this is part of the problem…?

The_Economist

Alanp said:

I had this on my puma, low battery and deep sleep messages used to frequently appear, some on the forum had their rombat batteries swapped for varta ones with varying degrees of success others had modules updated again, with various success rates, I’m not sure they completely resolved this problem, I would advise you to join the focus forums and seek advice there, incidentally, I changed my puma for a Yaris cross, all fine until the Christmas break where my car stood unused for two days, the battery went flat and I had to use the Toyota assist, similar stories on the forum with owners changing their factory fit batteries for yuasa ones, it seems that manufacturers are fitting cheap or sub standard batteries which seem more problematic with hybrid/ mild hybrid cars..

I think it was the second time I took my car back to the dealers they changed the battery for a new one which is a Varta. I always thought these were the better battery but appears not be the case.

Did you get rid of the Puma because of the problems with the battery drain?

I think I have heard of the make Yuasa. 

Yeah I've started looking on the Focus forums for answers but haven't seen a fix yet.

The_Economist

forgotmyname said:

I fitted Yuasa batteries to our cars last time. No issues since.  You need to splurge on the best one and also fit the biggest
battery the tray/box can manage.

Did you fit the Yuasa ones to Ford cars or another make?

I think I will have to start pricing them up and as you say get the biggest one that will fit. 

Ganga

I had a similar problem with our firms Transit van ,would start and run most days but hated very cold mornings ,went to a scrap yard and bought a battery tray of an earlier Transit that was fitted on the other side of the engine bay ,fitted the tray and bought a second  battery ,joint them together and never had a problem since.

Alanp

The_Economist said:

Alanp said:

I had this on my puma, low battery and deep sleep messages used to frequently appear, some on the forum had their rombat batteries swapped for varta ones with varying degrees of success others had modules updated again, with various success rates, I’m not sure they completely resolved this problem, I would advise you to join the focus forums and seek advice there, incidentally, I changed my puma for a Yaris cross, all fine until the Christmas break where my car stood unused for two days, the battery went flat and I had to use the Toyota assist, similar stories on the forum with owners changing their factory fit batteries for yuasa ones, it seems that manufacturers are fitting cheap or sub standard batteries which seem more problematic with hybrid/ mild hybrid cars..

I think it was the second time I took my car back to the dealers they changed the battery for a new one which is a Varta. I always thought these were the better battery but appears not be the case.

Did you get rid of the Puma because of the problems with the battery drain?

I think I have heard of the make Yuasa. 

Yeah I've started looking on the Focus forums for answers but haven't seen a fix yet.

No, I got rid of the puma because it had to have a brand new engine and I just lost confidence in it as Ford wouldn’t warrant it after it’s three year warranty ran out, ( the car was just less than three years old and just in warranty when they replaced the engine) it also had the dash taken out to fix a rattle ( passenger airbag bracket loose according to the forum, but the garage said it was the instrument cluster) I was quite happy giving the car an overnight charge when I got the battery message though

forgotmyname

The_Economist said:

Did you fit the Yuasa ones to Ford cars or another make?

I think I will have to start pricing them up and as you say get the biggest one that will fit. 

I fit Yuasa to all the family and friends cars no matter what brand.