Alternator Not Charging Chassis Battery

I considered a larger amperage model but the 105 was the only one available locally in the right frame. I do see they are available online at higher amps if this one goes. I saw references to problems with the higher amp models.

Hopefully with this one and the shorter battery cable runs it will be fine. The only things that will be running are the fridge (usually propane anyway) and the batts charging.