I am going to pick up a pair of Trojan T-105 batteries and see that there is the T-105.....T-105 Plus, and the T-105 RE (Renewable Energy). The local shops around here only carry the regular T-105 so...
I just replaced my four house batteries with the T 105's. Not really sure the difference from them to the RE and plus. They really needed to be replaced though due to excessive water usage, bulging by the terminals,and constantly very hot cases.