MrLorence
Member
Was having the same issues with not keeping up while using Nav...bought the Verizon car charger with USB plug in on it...working fine
I got the dual charger from Verizon, micro and regular USB and it seems to work fine on the Nexus with Nav and an Internet radio station on 4G. Kept up with the battery use for a 120 mile trip, stayed at about 75% start to end.
To me that is an underpowered charger. Should have quickly charged to 100% even with the screen/nav on. We need specs here, people, not just "my charger works". Also check in settings/about phone while plugged in and confirm the car adapter is recognized as "AC charge", as opposed to the weaker USB charge.
My original N1 car adapter is rated at 2A and charges the phone quickly. Shows as AC charge. But I don't yet have a car dock so haven't tried to charge with nav.
Should I expect more?
Moto rapid charger all the way! Got one with my DROID X car mount, works well.
Sent from my Galaxy Nexus using Tapatalk
Probably. Unless their is some odd internal electrical limitation where the phone cannot charge the battery at the same time it supplies full power to it's own circuitry (and this would be an odd limitation, but anything is possible) not adding charge while on a charger could mean a couple things:
1) The charger can't supply enough current. Some chargers this is clearly the case, others it would seem it shouldn't be. I think 2 amps should be plenty, and 3 amps more than enough. If your phone was drawing 2 amps from an 1850mAh battery it would be dead in less than one hour. Seeing that this doesn't happen, a 2 amp charger is probably enough. Although 3 is probably good for charging margin.
2) The resistor from D+ to D- in the USB port is somehow telling the phone it can't supply enough curent. Thought all this did was tell it AC or USB, with AC being "unlimited". Unless the phone is somehow imposing an arbitrary current draw limit.
This does raise the question of phone-charger interaction. We already know about the D+/- resistor. Does the phone also look for voltage drop at the USB power pins as an indication of insufficient capacity and limit the current draw? Does it arbitrarily limit it to a fixed value "just in case"? Things like this would limit charging effectiveness outside of a decent charger.
Absolutely agree. I bought three of these for the three Samsung Fascinates my wife, daughter and I have had up until now and they work great! High output (4.75-5.25V 950mA) and no issues. And, inexpensive!
I have been using these for years. They are cheap, and they work very good and don't destroy your battery like some car chargers will. Also it has a nice blue glow. Give it a shot it's less than 5 bucks.
Amazon.com: Motorola Vehicle Power Adapter micro-USB Rapid Rate Charger: Cell Phones & Accessories
I'm gonna try a few more USB cables, and see if I can find a good one that will let me take advantage of the full power.
Has anyone tried the "AmazonBasics" 2 amp charger?
Amazon.com: AmazonBasics 2-Port USB Car Charger with 2.1 Amp Output (Black): MP3 Players & Accessories