Battery Disappointment

Nov 6, 2005
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For 36 years, I've run my caravans using an old Vauxhall car battery - not the same one but they would typically do 5 years on the car and then 10 years in the caravan. The last VauxhalI bought was in 2000 and by 2019 I'd run out of them so based on a few recommendation on this forum I decided to bite the bullet and buy a Yuasa L36-EFB with a 4 year warranty but in 2023 it was flagged as failing during the caravan's annual service, ie after just 4 years service. I've nursed it over the last year but it's finally given up the ghost, despite using my CTEK to go through a full recovery cycle. The Yuasa L36-EFB is an NCC Verified Class B battery

Throughout my now 40+ years caravanning, it's always been plugged in to the mains - originally with a smart charger keeping the battery topped up and latterly using the semi-smart BCA power supply fitted to our present Lunar - we always use sites with electric so the only time there's any drain on the battery is using the mover at each end of our towing trips and one night/year off-grid on our way up to the Highlands.

That I'm disappointed with the life of this Yuasa caravan-specific battery compared to the life I used to get from old car batteries is a major understatement, especially given its high reputation. I had hoped to be able to use the big AGM battery recently replaced in my VW Touareg but that too is showing signs of failing according to the battery tester I use which indicates State of Charge and State of Health in addition to Voltage and Internal Resistance.

You can also say that I'm unimpressed by the NCC Verified scheme.

I plan to buy a medium-sized car battery for use next year and will run a check on the caravan's BCA power supply output which should be between 13.5 and 13.8v to ensure that wasn't the issue.
 
Nov 11, 2009
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For 36 years, I've run my caravans using an old Vauxhall car battery - not the same one but they would typically do 5 years on the car and then 10 years in the caravan. The last VauxhalI bought was in 2000 and by 2019 I'd run out of them so based on a few recommendation on this forum I decided to bite the bullet and buy a Yuasa L36-EFB with a 4 year warranty but in 2023 it was flagged as failing during the caravan's annual service, ie after just 4 years service. I've nursed it over the last year but it's finally given up the ghost, despite using my CTEK to go through a full recovery cycle. The Yuasa L36-EFB is an NCC Verified Class B battery

Throughout my now 40+ years caravanning, it's always been plugged in to the mains - originally with a smart charger keeping the battery topped up and latterly using the semi-smart BCA power supply fitted to our present Lunar - we always use sites with electric so the only time there's any drain on the battery is using the mover at each end of our towing trips and one night/year off-grid on our way up to the Highlands.

That I'm disappointed with the life of this Yuasa caravan-specific battery compared to the life I used to get from old car batteries is a major understatement, especially given its high reputation. I had hoped to be able to use the big AGM battery recently replaced in my VW Touareg but that too is showing signs of failing according to the battery tester I use which indicates State of Charge and State of Health in addition to Voltage and Internal Resistance.

You can also say that I'm unimpressed by the NCC Verified scheme.

I plan to buy a medium-sized car battery for use next year and will run a check on the caravan's BCA power supply output which should be between 13.5 and 13.8v to ensure that wasn't the issue.
Can understand your disappointment. Aren’t NCC Verified self certified?
 
Mar 14, 2005
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Is this another example of how the NCC (Self appointed trade organisation) makes yet another pseudo standard that's not fit for purpose?
 

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