Longer to charge with USB vs AC adapter??

detekk · 04-21-2010, 01:58 AM

The first time I charged with the included AC adapter, it seemed to take a lot less time to charge, maybe 2 hours when completely drained? but it seems to take a lot longer by using the USB cord. Is there a reason why?

**alphawave7** · 04-21-2010, 02:10 AM

Your USB port is spec'd @ 500ma. The wallwarts AC/DC adapters are rated @ 1 or 2 amps, and the N1 pulls around 730ma current. IOW, the wall charger is like a buffet, with food instantly available as long as you are hungry...the USB is like a five course meal, small portions, and a slow waiter.

dimmakherbs · 04-21-2010, 02:15 AM

which makes the USB a more 'gentle' charge.

**alphawave7** · 04-21-2010, 02:25 AM

Quote:

Originally Posted by dimmakherbs

which makes the USB a more 'gentle' charge.

True...less temperature increase, which leads to better cell longevity.

detekk · 04-22-2010, 12:38 AM

It took about 5 hours to fully charge with the USB cord.

mguindon10 · 04-22-2010, 09:50 AM

Like alphawave7 said, the AC charger takes half the time of the USB charging due to the amps.

Official google specs Nexus One Phone - Feature overview & Technical specifications

"Charges at 480 mA from USB, at 980 mA from supplied charger" which most people find it Fully charges around 2 hours on AC and 4 hours on USB.

detekk · 04-22-2010, 10:09 PM

Quote:

Originally Posted by mguindon10

Like alphawave7 said, the AC charger takes half the time of the USB charging due to the amps.

Official google specs Nexus One Phone - Feature overview & Technical specifications

"Charges at 480 mA from USB, at 980 mA from supplied charger" which most people find it Fully charges around 2 hours on AC and 4 hours on USB.

I know. I just wanted to tell you guys how long it took me to charge with the USB. I was thinking of getting the car charger with the USB connection. Now I'm thinking of sticking with the AC car charger.

04-21-2010, 01:58 AM	#1
detekk Member Member #6814 Join Date: Apr 2010 Posts: 58 Phone: Google Phone Carrier: Not Listed	Longer to charge with USB vs AC adapter?? The first time I charged with the included AC adapter, it seemed to take a lot less time to charge, maybe 2 hours when completely drained? but it seems to take a lot longer by using the USB cord. Is there a reason why?

04-21-2010, 02:15 AM	#3
dimmakherbs Senior Member Member #4655 Join Date: Mar 2010 Posts: 482 Phone: Nexus One Carrier: T-Mobile	which makes the USB a more 'gentle' charge. __________________ Nexus One and luvin it Rooted 5/6/2010 Enomther 2.10.1 Froyo Release Chinese Herbal Remedies

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04-21-2010, 02:10 AM	#2
alphawave7 Super Moderator Member #989 Join Date: Jan 2010 Posts: 1,788 Phone: Nexus One Carrier: Tee-Mo	Your USB port is spec'd @ 500ma. The wallwarts AC/DC adapters are rated @ 1 or 2 amps, and the N1 pulls around 730ma current. IOW, the wall charger is like a buffet, with food instantly available as long as you are hungry...the USB is like a five course meal, small portions, and a slow waiter.

04-22-2010, 12:38 AM	#5
detekk Member Member #6814 Join Date: Apr 2010 Posts: 58 Phone: Google Phone Carrier: Not Listed	It took about 5 hours to fully charge with the USB cord.

04-22-2010, 09:50 AM	#6
mguindon10 Junior Member Member #4774 Join Date: Mar 2010 Posts: 19 Phone: N1 Carrier: Tmobile	Like alphawave7 said, the AC charger takes half the time of the USB charging due to the amps. Official google specs Nexus One Phone - Feature overview & Technical specifications "Charges at 480 mA from USB, at 980 mA from supplied charger" which most people find it Fully charges around 2 hours on AC and 4 hours on USB.

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