Originally Posted by JC Strat:
Just an update on the Motorola SPN5400A:
When I first tried to use this charger with the Touchstone in several vehicles I got the charging on/off every few seconds problem.
I tried again just for yuks yesterday and the Touchstone seemed to charge the device without significant loss of battery using Pandora + Sprint Nav.
Then about 20 min into my drive it randomly started with the charging on/off dinging. I ended up just using the Touchstone as a holder and charging via the microUSB port.
I am not having this problem with the SPN5400A. There have been a few times it has cycled on/off but I believe that was because I hit it with my shifter when shifting up to 5th gear.
What car are you using it in? I have it currently in an 02 Lexus IS300. I am using the main cig lighter socket and not the aux one under the armrest.