Phone is connected through USB, charging hasnt started - what am i doing wrong ?
N95 not charging through USB - WHY ?
...because it's not chargable through USB...
Your joking mate ???
surely that is an important feature to charge through USB !!!!
ARGHHH!!!!!!!!!!!!
Yes, that's why nokia produce the CA-100 usb charging cable
There is however a Nokia charger which let u use usb on pc to charge phone (not PC USB->N95 mini-USB but PC USB->N95 2mm port) =>
Nokia Charger via USB port CA-100
It will charge via a usb port but only trickle or topup charge and only if your phone is not totally discharged as your mains chargers output is approx 7v and the usb port is approx 5v at least this is what i found out with my usb charger.
madasscivic wrote:It will charge via a usb port but only trickle or topup charge and only if your phone is not totally discharged as your mains chargers output is approx 7v and the usb port is approx 5v at least this is what i found out with my usb charger.
This is the CA-100 charger?
yes it is the same as i use and it will not charge my phone once the battery is dead only from about three quarters full .
usb is slowest
car charger slightly faster
mains is fastest
i bought this
and its the best thing ive bought from ebay ... and a bargain !
Mine'll charge from empty to full on USB - including via a 4 x AA Boxwave USB charger.
madasscivic wrote:It will charge via a usb port but only trickle or topup charge and only if your phone is not totally discharged as your mains chargers output is approx 7v and the usb port is approx 5v at least this is what i found out with my usb charger.
Nothing to do with voltage!
It's because USB port specs set a 500mA nominal rating and the Nokia mains charger is 800mA.
The lithium ion battery needs the extra ooomph to get them started from discharged state.
Some PC and laptop manufacturers do supply more from the USB port but it's the luck of the draw.
Simply answer is keep the battery on charge whenever possible. (USB, car, external power pack or mains).
Your battery will thank you for it!
Nothing to do with current either!
Simple logic, if it was then how does the C-100 cable work?
The USB port can supply enough current to charge, just not as much as the mains charger.
I assume it was a choice by Nokia, either a hardware or firmware limitation. lets hope it's a firmware issue and therefore can be "fixed".
DP
docpaul wrote:Nothing to do with current either!Simple logic, if it was then how does the C-100 cable work?
The USB port can supply enough current to charge, just not as much as the mains charger.
I assume it was a choice by Nokia, either a hardware or firmware limitation. lets hope it's a firmware issue and therefore can be "fixed".DP
Sorry, don't understand your 'logic'
Lithium Ion batteries charge rate is dependent on the current supplied to it at a certain voltage. The voltage is monitored by the charge circuits and the applied current is what provides the battery with the stored charge at a final voltage. The current can vary with the same voltage. The higher current of the mains charger is what allows the battery to be charged from dead where charging from the USB port provides a lower current that will not start the charge cycle.
Charging a battery is everything to do with current. The end result is a stored charge (max current available to a device) at a certain potential difference (voltage). On discharge the voltage is maintained while the current available drops. (the opposite of charging).
I don't understand what you mean about the C-100. It's just a piece of wire and as such has nothing (actually little) to do with any current or voltage! It works because it is simply a method of transmission of the current and voltage between the USB port and the power connector of the phone in a passive mode.
Whatever Nokia chose they can't change electrical physics by changeing firmware!
Hi All,
I can take this a step further I bought a Car Charger for my N95 and now find the phone says "Not Charging" Saddly I bought it from a shop that is to far away now to bother returning it.
But there does seem to be an issue with chargers?
Any advise?
Gerrit
You cannot charge your Nokia N95 through the mini USB port on the phone itself. You can use USB from your PC to the power adapter of the N95 to power the battery. Aftermarket chargers may not charge a battery from a dead state and they may not fully charge the battery to a full battery state. This is because of the mah ratings of the aftermarket chargers being 500mah and the Nokia needing 800mah to initiate charging on a drained battery.
waxup wrote:A. You cannot charge your Nokia N95 through the mini USB port on the phone itself. B. You can use USB from your PC to the power adapter of the N95 to power the battery. C. Aftermarket chargers may not charge a battery from a dead state and they may not fully charge the battery to a full battery state. D. This is because of the mah ratings of the aftermarket chargers being 500mah and the Nokia needing 800mah to initiate charging on a drained battery.
A. I think superswede said this on 17.08.07.
B. I think superswede said this on 17.08.07.
C & D. I think I said this on 24.08.07.
waxup wrote:You cannot charge your Nokia N95 through the mini USB port on the phone itself. You can use USB from your PC to the power adapter of the N95 to power the battery. Aftermarket chargers may not charge a battery from a dead state and they may not fully charge the battery to a full battery state. This is because of the mah ratings of the aftermarket chargers being 500mah and the Nokia needing 800mah to initiate charging on a drained battery.
Hasn't all that been said already?
Yes it has, and apparently people continue to still ask the same questions that keep getting the same answers. I now understand "the circle of life."
And sometimes people will take the information from multiple posts and summarize in one post to make it easier to find all the data needed for a specific outcome. Hence this post.
waxup wrote:Yes it has, and apparently people continue to still ask the same questions that keep getting the same answers. I now understand "the circle of life."And sometimes people will take the information from multiple posts and summarize in one post to make it easier to find all the data needed for a specific outcome. Hence this post.
But what's the point of doing this in the same thread which supposedly all will have read by the time you post?
What answer are you looking for? I have some questions of my own for you: What is it that you are trying to accomplish here? Why are you dragging this topic on and on?
Most people I know usually jump to the end of a discussion and work backwards after reading the first post of a topic. They do this to find the answer or solution, which is usually near the end of the discussion.
So does it not make sense to summarize the discussion so it's easy to find your answer or solution in one spot? Other ways of doing this are by creating FAQ sections on forums that contain the most frequently asked questions and the best answer/solution to that question. Unfortunately we don't have that for this particular issue so I've summarized it at the end, which is now the middle after you've had the notion to continue to question my motive.
waxup wrote:What answer are you looking for? I have some questions of my own for you: What is it that you are trying to accomplish here? Why are you dragging this topic on and on?Most people I know usually jump to the end of a discussion and work backwards after reading the first post of a topic. They do this to find the answer or solution, which is usually near the end of the discussion.
So does it not make sense to summarize the discussion so it's easy to find your answer or solution in one spot? Other ways of doing this are by creating FAQ sections on forums that contain the most frequently asked questions and the best answer/solution to that question. Unfortunately we don't have that for this particular issue so I've summarized it at the end, which is now the middle after you've had the notion to continue to question my motive.
1. I wanted to know the reason for answering a question that had already been answered in this thread (and in many other threads)
2. If I want to continue 'dragging this topic on and on' I will.
3. Summarising the discussion thread may (or may not) be a good idea and in this regard I look forward to your summarising and re-summarising in all new threads.
4. The best way forward for any new query is by way of a forum search as many topics (this one included) are usually already extensively covered.