How to tell if my new N900 battery is any good?
 

My N900 wasnt getting the battery life it used to so I decided to buy a new battery. I couldn't find anywhere locally selling a genuine Nokia BL-5J (and I didn't want to buy from feebay or other online sources) so I bought the one the shop I found had.It has the same markings as the Nokia except for the Nokia names and hologram.

What I want to know is if there is anything I should be looking for to figure out if A.The battery I got is any good i.e. not going to blow up on me or ruin my phone or whatever (but so far its been in my phone for a day or so with no indications of anything wrong) and B.whether its actually going to give me any kind of battery life (so far I have noticed that in about a day or so of use with a few phone calls and being connected to WiFi and to Skype all day, its gone from full battery to about 1/2 empty on the battery meter)

Basically I am trying to find out what I can do to tell if the $50 I spent was worth it or money down the drain :)

Re: How to tell if my new N900 battery is any good?
 

one easy metric is to put the phone in offline mode and let it rest on the table for a day (or maybe 12h); without anything running battery % should drop by about 10% per day

regarding battery quality, it is hard to tell

Re: How to tell if my new N900 battery is any good?
 

If you are willing to use your N900 for battery capacity measurement here are instructions from estel on how to do it: http://talk.maemo.org/showpost.php?p...&postcount=846

Re: How to tell if my new N900 battery is any good?
 

try battrygraph
use it on both my N900s just fine
nothing fancy, simply a graph & a numerical display of a couple informations (mAh, mvolts are most interesting)

i tried the scripts on both my N900s for several weeks w/out getting anything but 2100+ mAhs with standard BL-5J batteries - probably only work for the super-duper whatever batteries ¦-))))))
more likely not @ all :rolleyes: :confused:

Re: How to tell if my new N900 battery is any good?
 

Polarcell?
I have bought three from that seller now, I have been pleased. There are many happy polarcell users here.

http://talk.maemo.org/showpost.php?p...55&postcount=2

The only true way of testing capacity is with a script like the one linked above to calibrate the battery.

Batterygraph eats battery so if you use it remove it when you have finished.

Re: How to tell if my new N900 battery is any good?
 

Jonwil, hi. If you are looking at so-called "genuine" bl5js the counterfeiters are very good with faking the holograms.

Pisen 1400mAh batteries under $10 shipped. They might not say 1400mAh (on the ad it might say 1320mAh) but what turns up are labelled 1500mAh 1400mAh.. Pisenexport and pisenelectronic are factory sellers. I have bought from them both. These are tested by me to be 1500mAh cells and of very high quality. HTH

Re: How to tell if my new N900 battery is any good?
 

Hi there, both sellers have nothing on sale.

Re: How to tell if my new N900 battery is any good?
 

Its still Chinese new year holiday at the moment. Also, I just bought 4x Pisen 1400mAh from tvc-mall cheaply. Supposedly in the post as we speak, never used that outfit before so can't say how good they are.

Re: How to tell if my new N900 battery is any good?
 

ah i was using the .co.uk page. found em now

Re: How to tell if my new N900 battery is any good?
 

I bought BL-5J from Nokia sometime ago, it was labled 1430mAh but it's actual capacity was 1540mAh.
http://nokiaskleponline.pl/product-p...tml?text=bl-5j

Re: How to tell if my new N900 battery is any good?
 

This one wasn't even labeled as genuine (no Nokia markings, no hologram). Will run the battery capacity test suggested there and see just what the capacity ends up being.