QUOTE(Roman Catholic @ Sep 11 2024, 10:52 AM)
Then lucky you.
Are your vehicles less than 5 years old or more than 5 years ?
I have an elderly clients with the latest 3rd Gen Myvi. Despite informing them it's a Replace Battery on my tester and it needs to be changed but they insisted that it still could be used. Their first battery replacement which I did for them, they already wanted to accuse me of damaging their vehicle and luckily that problem magically disappeared. Now they are repeating the same thing again. If this time, other items starts to fail and needs replacing, perhaps then they will listen. Well if the don't, I am sure, they will get the message overtime too or maybe not.
Despite writing a summary to my Regional Sales Manager on their situation which they wanted an explanation for their situation, they still think it's ok to use a degrading battery. If they don't believe what I say, how are they going to believe what my Regional Sales Manager has to say. When their charging system fails, they will be my 3rd customer to suffer electrical failures or charging systems failure not only due to battery but inability to listen.
I have purchased 5 years old car before and used it for 4 or 5 years. Have had new car that used for more than 10 years. Got new car that used for 5 years, 7 years, etc. All not having battery terminal issue. I only remembered my first car Toyota (used) was having this problem but only one time on one battery but not on replacement battery. That time still using non-MF battery.
As far as I remember, I have never replace battery on SC of any workshop advise. It was always my own judgement when I felt it was weak enough to survive for next 2 or 3 weeks

. The non-MF battery will have vent hole because gas produced during charging need to escape. Normally on cap. The MF battery will have no vent hole. The pressure it adjusted to accommodate the gas build-up in battery and there put special filler plate to prevent excessive gas build-up. So, water lever will remain the same because it is a closed system. Last time price difference more significant but now I just stick to MF because lazy to check water lever like last time. Getting old and lazy
Anyway, I use any battery on sales. No specific brand and they normally lasted at least 2 to even 4 years. Life spans are random. No specific one last longer than the other based on my experience.