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CTEK MXS 5 - Only achieving four lights on the 8 step programme

Nick7602

Nick7602

New member
Hi Guys

Thanks for reading my post guys

First let me apologise if this is a silly question, I invested in a new battery which was installed on the car on Monday the 30th of March 2020 as im keen to keep the battery in tip top condition, I have a CTEK charger / maintainer.

Which I installed today, after some 7 hours I have only achieved 4 lights on the 8 step programme?.......would this be right?....or is the so called new battery faulty??




Kind Regards to you all, and thank you in advance for replying

Nick
 
Hi Nick, I would suggest that the charger is still doing it's job of checking the state of the new battery, I just copied the following from the online manual and I would guess that step 4 could take at least 7 hours for a new battery, don't think there is anything to worry about at the moment, if it was me I would leave it overnight and see what the light display situation is tomorrow.

I managed to bring a 120Ah battery back from the dead and it was on step 4 for about a week ..

Cheers - Tony

STEP 1 DESULPHATION Detects sulphated batteries. Pulsing current and voltage, removes sulphate from the lead plates of the battery restoring the battery capacity.

STEP 2 SOFT START Tests if the battery can accept charge. This step prevents that charging proceeds with a defect battery.

STEP 3 BULK Charging with maximum current until approximately 80% battery capacity.

STEP 4 ABSORPTION Charging with declining current to maximize up to 100% battery capacity.

STEP 5 ANALYSE Tests if the battery can hold charge. Batteries that can not hold charge may need to be replaced.

 
Hi Tony

Many thanks for your kind reply and information, I will plug the car in tomorrow again and leave all day, thank you for taking the time to reply its very much appreciated

Kind Regards

Nick

 
Nick,

Just to mention that it's perfectly safe to leave the CTEK permanently connected if you can. It's a battery conditioner not a battery charger, so won't do any harm.

I've had my ancient CTEK connected-up to my Cayman for more than 9-years.!

Jeff

 
Motorhead said:
I've had my ancient CTEK connected-up to my Cayman for more than 9-years.!

Jeff
Click to expand...

Don't you think you should drive it at least once every 9 years? [:)]

Ralph

 
Hi Guys

Love the banter lads, hilarious

That was my other question Jeff, I did wonder how safe it was to leave the car connected but you've answered that for me, thank you very much.

Nick

 
Nick7602 said:
Hi Guys

Thanks for reading my post guys

First let me apologise if this is a silly question, I invested in a new battery which was installed on the car on Monday the 30th of March 2020 as im keen to keep the battery in tip top condition, I have a CTEK charger / maintainer.

Which I installed today, after some 7 hours I have only achieved 4 lights on the 8 step programme?.......would this be right?....or is the so called new battery faulty??

Kind Regards to you all, and thank you in advance for replying

Nick
Click to expand...
Hi Nick,

The first time I connected my CTEK MXS 5.0 to my Cayman battery it took forever and like you I thought there was a fault with either the charger or the battery. One of my other charges is an Optimate 2, I have this hooked up to my Boxster. I do a lot of short runs and hook my conditioner/charger up most nights to keep the battery topped up and ready.

https://www.youtube.com/watch?v=jb7rlRwbGsA

https://www.youtube.com/watch?v=TAHY2maRvUc

https://www.racshop.co.uk/advice/what-is-an-agm-battery

 
Hi Ray

Thank you so much Ray, that information is superb, thank you for going to such lengths for me I found all the links very informative

Kind Regards

Nick

 
Nick

I am experiencing the same issue. Hooked up the battery yesterday evening only to find it still on light 4 this morning. I will also give it a couple more days to see if there is any change.

Rob

 
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