Keep in mind I'm a noob to the diesel world,,,,, So twice now the batteries have run down on my Duramax from lack of use. I'm starting to look for an inexpensive tender that I can mount to the vehi...
I use a solar maintainer for our toyhauler after I fully charge the battery bank. It's important to have a small constant charge on batterys that are not used regularly. Seems to work fine, 3 watt output.