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Now that I finished installing a Ctek DC-DC charger into my trailer last night, I see a notice from Renogy about their new charger. If you already have solar with a charge controller, this looks like it will do the same job as the Ctek for less than half the money. Functions as a battery...

The TV battery is original - just over 4 years old - and has not been a problem. I'm going to have it load tested and want to get the most appropriate replacement if needed. I just wired the TV to charge the old trailer battery, a 33ah agm, that will be used to power the Dometic when we have it...