Leisure battery recommendations

[Sue R]

Hello
Our leisure battery is probably dead , never goes over 12.8
After 5/6 drive charge lasts 12 hrs approx with just fridge on .
Anyone have any recommendations for a new battery ?I hear lithium have longest life span , would like to get at least 48 hrs plus ,out of a charge .
Seem to remember getting 3 days with the original but can't remember whether it was a Mercedes one .
Thanks

 

[Pavel]

I had a 92 Ah battery in my car from the factory - the same as the starter battery. However, a so-called traction battery is better for these purposes. With the original battery, my fridge lasted about 2 days. I replaced it with a 180 Ah Lifepo battery and after two days of using the fridge, even in the current hot weather, I have more than 70% of the battery. Lifepo batteries require a special charger, I had it installed by a professional company.
Pavel