Battery conditioner.

[Ajj1503]

Hello everyone

I have a head scratcher.

My 2000 Boxster S is only used every now and again and when not in use it’s in my garage on a CTEK battery conditioner.
In March the conditioner went into fault mode and when I reset it was showing that the battery would not hold charge.
No problem bought a new battery (£100), All was good couple of long runs back in the garage been there for about 3 weeks since last use and now the conditioner is back into fault mode and not going past the 5th light (battery won’t hold charge indicator).
Any ideas?
Seen some reports of battery conditioners killing batteries.

[richs2891]

After about 4 years my CTEK did exactly as you described, Lived with it for a bit until I snapped a lead on the charger so borrowed a friends Noco Genius G3500 charger, just to confirm my battery was OK.
Ended up buying the Noco to replace the Ctek.
https://www.halfords.com/workshop-tools/garage-equ...

Can get better prices on the web compared to Halfords

[Ajj1503]

richs2891 said:

After about 4 years my CTEK did exactly as you described, Lived with it for a bit until I snapped a lead on the charger so borrowed a friends Noco Genius G3500 charger, just to confirm my battery was OK.
Ended up buying the Noco to replace the Ctek.
https://www.halfords.com/workshop-tools/garage-equ...

Can get better prices on the web compared to Halfords

Happy days well not so good that I have to get a new conditioner but at least it’s nothing to do with the car 😄
I have had the CTEK for about 5 years now and it’s been on one car or another every day since, so it’s served me well.

[RSpiston]

Been using the same CTEK charger for at least 300 days a year for the last 15 years ish ! Had to replace the Bosch battery last year though - that was approx 11 years old.

So my experience has been extremely good !

[Ajj1503]

Sit rep

Switched the Ctek to recond mode last night.
Apparently your supposed to do this at least once a year.
And now it’s showing battery fully charged (green light no7)

Weird.

[RSpiston]

I must have a more basic charger than yours then as mine only has 3 lights, and no recon option.

What does the manual say that the recon option actually does ?

[Ajj1503]

Just taken the car out for a spin
First half decent day for weeks.

Put it back on the conditioner and it’s sorted.
Good to note that it was obviously the conditioner that had a fit and not the battery.