I would like to connect my 12volt house battery system to the Mercedes Sprinter (2016) Auxiliary Battery package with a Sterling Battery to Battery Charger. Sterling suggests two units: one is a 25amp unit (BBW1212) for $320 and the other is a 50amp unit (Bb1250) for $420. Supposedly, the 50amp unit will recharge our house battery (150ah) twice as fast as the cheaper unit. I would like to hear the pros and cons of these two units. I would also listen to any conversions suggesting to not connect to the MB auxiliary battery system. We are a low power use 12 volt conversion and I have attached our 12v electrical wiring setup with our electric consumables installed.
BBW1212:
http://www.sterling-power-usa.com/ProCharge-B-waterproof-dcinput-battery-charger-12volt-12volt.aspx
Bb1250:
http://www.sterling-power-usa.com/SterlingPower12volt-12volt45ampbatterytobatterycharger.aspx
BBW1212:
http://www.sterling-power-usa.com/ProCharge-B-waterproof-dcinput-battery-charger-12volt-12volt.aspx
Bb1250:
http://www.sterling-power-usa.com/SterlingPower12volt-12volt45ampbatterytobatterycharger.aspx
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