Originally Posted by Ben36
Anyone know of any? I'd like to be able to use the sat nav with at least the same amount of battery after rather than considerably less even when plugged in
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This is the one I use in my car. Make sure you have a good USB cable of course. Anker 18W Dual Port Car Charger @ $7.99
I needed it for the same thing you do. I use navigation a lot, and stream music as well. It charges at the same rate as the stock Nexus 5 wall adapter/cable. It is still able to slowly charge the phone while using navigation/streaming.
Here is the newer updated 24W car charger for $12.99
. It no longer has a dedicated Apple/Android port, but has power management/device detection. So just plug it in to either port and it should quick charge.