read this and look at the specks
it charges the same or faster as a crank battery
it can get hot and not brake
it can be stored for up to 2 years with no damige
doensnt mind to be shaken around on dirt roads ect
does not need maintance and life span is great!!!!

I have been looking at this for a long time and this tipe of battery makes sence for overlanding

this battery is not for cranking your diesel but perfect for your frige ect.