Renogy DCC50S very low charge from Alternator

The Renogy DCC50S is potentially a great product with a high charge rate from both vehicle and solar and good protection features and all at a very reasonable price - if only it worked properly from the vehicle alternator! This thing is great on Solar but its a bit problematic as far as car charging and not as good as it could be. Dont get me wrong its a good quality unit but should be so much better on alternator charging. Watch this and I show its short comings.
Good general technical appraisal of this product from Will Prowse at DIY Solar Power:
• Easy Solar Power for #...
Renogy DC/DC Charger information can be found here:
www.renogy.com...
Purchased from Amazon but you can buy direct:
www.renogy.com...