Leasure battery level issue

[bmassaer]

We own a 2007 Cali T5. After winter, the level measuring the leasure battery drops quickly tot about 70% and then 50%. I asked the dealer to check both battery's, they confirmed they are in a good condition. The battery's were completely loaded, but the problem persisted.

We bought this Cali 2 years ago, second hand, so I don't know the history of both battery's. Should I beleive the dealer (the could have sold me new battery's so why would they lie?) or the measurement - can it be defective?

 

[WelshGas]

Are they original?
Are you charging them from the mains on a monthly basis as stated in the manual?
A simple check may say they are OK but you really need them checked under load.

 

[bmassaer]

OK - sorry for this late response. We have some camping weekends coming up, so I can check if they are really keeping their charge as before. If not, I will have to replace them...

 

[GrannyJen]

When you say the level drops, over what time period and under what load?

It is quite normal for the battery level indication to drop from 100% to 90% just a few minutes after disconnection with minimal load.