First of all, I want to introduce myself. This is my first post, so I wanted to say "hello" to everybody. I've bought a 7650 on last December. I had been dreaming it for a lot of time, but it was too expensive...I'm just a university student! 8)
So I bought it, and started to play...I've downloaded games, programs. Then one of the providers here in Italy launched a gprs flat. Of course, I've paid for it and it's going perfectly. I'm online with wirlessIRC, WebViewer, tipicME, and, using a cheap bluetooth USB dongle, with my notebook under linux. Cool, I must say. But the battery gets REALLY low, it just stays alive for one day (and, if I use it a lot, I think it would die before the end of the day). Why Nokia put a so small battery on a so cool telephone? If someone buys a 7650, he will use it as a PDA, as an Internet tool. Anyway...I've noticed that if the battery is full and the phone is connected to the AC adapter, it just keeps the battery full, but if connecting it via gprs and via bluetooth, after some minutes it starts saying "on charge" and charging it again...will it ruin the battery? Shall I continue doing this way or should I disconnect it, use it and, then, reconnect it? Another question: some threads ago, you were talking about batteries and saying that Lithium-Ion batteries can be charged all the times you want, they will just die due to aging. But I knew that those kinds of batteries have just a fixed (more or less, of course) number of charges and discharges...who is right? 😃
Thank you for your attention and thanks for this wonderful forum.
7650, Bluetooth, GPRS...goodbye battery! :(
First of all,welcome to the forum 😃
Just for the record,there are bateries with larger capacity out there you know 😃
You can recharge the battery thousands and thousands of times before it suffers some capacity loss and lots and lots of times more before it dies.
Using GPRS and Bluetooth while charging is not much different then charing the phone while it is on standby,battery power still gets consumed,well quite more when using GPRS or Bluetooth 😃
Overall,i dont think you are doing much harm if you use BT or GRRS while charging.
Welcome to the forum man!! Come back recently 😃 (that's if you don't get stuck here 😉)
For the battery, your phone is new right? You did charge it like when you buy any other phone? Well your usage pretty much is hard, and the capacity of the battery isn't that high anyways, (750mh, right? :-?) The bluetooth drains the battery, so does IR, so don't keep bluetooth on all the time. You can buy a bigger capacity battery, some links were listed here (gotta search! 😉) And i dunno any problems about keeping the phone connected and using it (you're charging and using, no problem..... right?) I used to do that for games alot, and nothing happend.
But you shouldn't over charge your battery, it's not good for it (keeping it connected the whole time to the charger thing, as it discharges itself after a while)
And the battery could be charged and discharged hundreds of times, but it will eventually wear out, if you noticed that talk time and standby time is noticebly shorter it's time to change your battery - Users Manual, page 121
You can learn alot from the users manual!! 😃
[quote="GhostDog"]You can recharge the battery thousands and thousands of times before it suffers some capacity loss and lots and lots of times more before it dies.[/quote]
I think that truth is little worst than you have described it here. I think that number of charge cycles is 400-500(Ni-Mh, Li-Ion) and 250-350(Li-Pol). After this number of cycles battery should begin to lose capacity.
To original question:
Difference between Ni-Mh and Li-Ion(Li-Pol) is in so called "memory effect". If you are charging Ni-mh battery which is not empty, you are activating memory effect. It means, that battery remembers how much was charged and when you are using it, you can use just that what you have charged. And because battery remembers this state, you can never charge it more. It doesn't work so after one bad charging, but if you will do it more times, you can destroy your battery capacity. This doesn't exist with Li-ion(Li-Pol). But all batteries have limited number of charging cycles and when you reach it, you shall buy new battery.