[Cioky]

Hello Nokia!

I got an Nokia N9 and i think i hace a problem with it's battery. When the phone s battery level reaches @20 % it suddenly drops down to 4 % when i activate the 3g or make a phone call. Is that normal or should i take the phone to a service?

                     Thx in advance

[aspergerguy]

@Cioky

Would be interested to know what value you get for "Average Idle Consumption" with Battery Usage app:http://store.ovi.com/content/138659

[Cioky]

I got the app and after 20 mins since i have installed it it is @ 20mAh

[aspergerguy]

@Cioky

That certainly appears reasonable so not something running in the background of which you are not aware. Just to clarify that value remains upon 4% after call terminated in this situation and not returns to higher value?

[Cioky]

sometimes it does recover from that 4%...but it is anoying to wait for a few minutes to make a phone call without risking to run out of battery... Thx for the replies

[ceroberts75]

happens to me too. 20% - 2% in a flash. I feel it more a used battery issue or what you may have installed or modified...if you have.

my n9 is like a work pickup truck....1 year old and already has a 100,000 miles on it but love to hold it, use it, and abuse it!

[CallumBrierly]

I have the exact same problem with mine, dropping from around 20% to 4%, then turning off, it then lets ne turn it back on and then displays the charge as 20% again. A few times it has even dropped from 30% to 0%, then stayed on 0 for hours until thr battery actually runs out. I've only had the phone a week and this has already started to really annoy me.

[donofworld]

N9 battery life can be pretty unpredictable without using mods from TMO forum so perhaps best way is to close all background apps which are not needed always and to do a reset from time to time to keep the N9 fresh.

[rembrandt]

i have the same problem and one day my phone died...so suddenly, perhaps its a battery problem perhaps a software problem or soemthing else? the problem apperas first time when i used 3G, then suddenly my phone powered off...i  don't know, i just send it to the service i hope i ll not have to pay for a new battery, cause i have it 11 months and the warranty for such problems is 6 months...

[CalBrierly]

The battery reading software isn't very good with the n9. Whenever it drops to 4%, you can go into the terminal, gain root access with 'devel-su', insert password 'rootme' unless you've changed it, and then type '/sbin/stop bme', once it says bme stop/waiting, type '/sbin/start bme'. Now the battery reading should be at it's actual amount.

[Faz1]

Great tip! Sounds like a scheduled cronjob may be in order.

I had suffered from this issue as described by others but found uninstalling all battery monitors has helped a lot.