Quote Originally Posted by 101 Ron View Post
I feel usings a 5 watter and especially one without a diode to stop night time drain back is a waste of time..
I totally agree if your looking for a solar charger, however the post was about trickle charging in vehicles that I assumed were in regular or semi regular use. I can appreciate that it may not suit your application, but if you normally charge your battery prior to storage (via normal running and letting the alternator do it's thing) and just want to keep them in good shape and perhaps to last a period of non-use, then an unregulated 5watt panel would be a cost effective solution.