Our 2.5 - a battery biography

The place to show off and tell us all about your XMs (or even other cars). Should it be a big project, or just some general pics, start your thread in here.
Post Reply
User avatar
White Exec
Citroen God!
Posts: 5251
Joined: Fri Mar 11, 2011 7:38 pm
Orga / RP numbers: RP7165
1996 2.5TD saloon, manual, Polar White
Location: ex-Ealing, Cheshire, W.Sussex & Surrey. Now living in Sayalonga (Malaga, Spain)

Our 2.5 - a battery biography

Post by White Exec » Tue Dec 24, 2019 8:26 pm

Idly raking though log of battery replacement on our '96 2.5, since getting the car 'new' in 1999.
.
2.5's batteries.pdf
Click table to enlarge

A spell of neglect :( after we moved to Spain in 2004, and the car was laid up.
Thereafter, fitted Yuasa 096's (currently Yuasa YBX3096), which have not disappointed.

** An investment in a CTEK MXS3.8 intelligent charger in 2015, and with the car getting regular use now around once a week for long and very long journeys, I just leave it hooked up to the CTEK in the garage, where it always starts on-the-button.

Looks like battery life is now around 5 years; will be interesting to see if the CTEK does anything to extend that.
You do not have the required permissions to view the files attached to this post.
Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
2003 RAV4 D4D 2.0 5dr LHD Silver WORKHORSE
1989 BX19RD Delage Red Deceased; 1998 ZX 1.9D Avantage auto Triton Green Company car 1998-2001; 2001 Xantia 1.8i auto Wicked Red Company car 2001-2003

User avatar
sageman
Knows how to use the parking brake
Posts: 133
Joined: Sat Sep 16, 2017 5:07 pm
Location: norwich

Re: Our 2.5 - a battery biography

Post by sageman » Wed Dec 25, 2019 4:02 pm

Would be interesting to know the voltage drop/self discharge between uses without your charger which I would think holds your batteries at 13.6v on float

It’s worth noting excessive float charge on a typical car battery will cause positive grid corrosion if the battery isn’t excisized
As you’re using yours every week or so this is unlikely to have any major affect and it’s less noticeable on an engine start battery compared to a domestic/house battery bank in a boat or RV

Battery’s that are being left for very long periods are better left disconnected and put on a charger (preferably a smart charger) every month or so
1976 Reliant kitten
1985 Reliant fox Tandy campervan
1998 Peugeot 306 GTI-6
h̶o̶p̶e̶f̶u̶l̶l̶y̶ ̶a̶n̶ ̶X̶M̶ ̶o̶n̶e̶ ̶d̶a̶y̶
1993 XM sei V6 RP 5876

User avatar
White Exec
Citroen God!
Posts: 5251
Joined: Fri Mar 11, 2011 7:38 pm
Orga / RP numbers: RP7165
1996 2.5TD saloon, manual, Polar White
Location: ex-Ealing, Cheshire, W.Sussex & Surrey. Now living in Sayalonga (Malaga, Spain)

Re: Our 2.5 - a battery biography

Post by White Exec » Thu Dec 26, 2019 11:44 am

With the unit at Step 6, the charge settles to 13.47v, pulsing at 2Hz, with average current showing on a meter as 7mA.

https://www.ctek.com/storage/ma/0f89342 ... -UK-EN.pdf
Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
2003 RAV4 D4D 2.0 5dr LHD Silver WORKHORSE
1989 BX19RD Delage Red Deceased; 1998 ZX 1.9D Avantage auto Triton Green Company car 1998-2001; 2001 Xantia 1.8i auto Wicked Red Company car 2001-2003

Post Reply