Charging battery of a new mobile phone

Campden

Got my new mobile phone today. The instructions say leave the battery to charge overnight the first time.

It's been plugged in for about an hour and the phone screen itself says the battery is full.

What to do?

espresso

Campden wrote: »

What to do?

Why not follow the instructions!

skintscotsman

Campden wrote: »

Got my new mobile phone today. The instructions say leave the battery to charge overnight the first time.

It's been plugged in for about an hour and the phone screen itself says the battery is full.

What to do?

Leave it plugged in overnight!!!

The types of batteries that mobiles use have to be conditioned otherwise their performance will degrade significantly over a period of time!

It's called the memory effect. http://en.wikipedia.org/wiki/Memory_effect

Part of the process of avoiding the memory effect is to condition the battery and leaving it connected to a charger the first time it is charged is part of thid conditiong.

Millionare

espresso wrote: »

Why not follow the instructions!

It is strange nowadays for mobile batteries to be charged that long as normally its 2-3 hours first charge these days.

But i would do what the instructions say for the particular phone. and if it says leave it overnight. leave it overnight.

peterbaker

skintscotsman wrote: »

It's called the memory effect. http://en.wikipedia.org/wiki/Memory_effect

Part of the process of avoiding the memory effect is to condition the battery and leaving it connected to a charger the first time it is charged is part of thid conditiong.

I am not sure that Memory Effect is a problem with modern batteries which are usually "Lithium Metal Hydride" or similar named, not Nickel Cadmium.

I too have hunted for good instructions and explanations with modern phone batteries, expecting to see an instruction to leave it plugged in overnight, but actually I have seen no such instruction recently.

Like the OP, I have noticed that the new batteries apparently charge quickly.

The only additional information I have read about the characteristics of new batteries is that they have to be charged and discharged three or four times before they can be charged to full design capacity (or something similar ... I am paraphrasing like mad!)

System

I too have recently experienced "Battery Full" after 3hrs, but the shop told me ignore that, you must leave 8hrs at least.

Woby_Tide

were the instructions to charge overnight from the actual phone manufacturers or an (out of date) leaflet from the shop that sold it? memory effect isn't an issue with the majority of new phones nowadays, at best usually you should charge it till it's full, then unplug it and then re-plug it in for a secondary charge which shouldn't take that long. If you suffer battery issues after that then the battery is duff not what you did with the first charge

Campden

The instructions to charge overnight were from the phone manufacturer, include in their Quick Start Guide

Millionare

Campden wrote: »

The instructions to charge overnight were from the phone manufacturer, include in their Quick Start Guide

Then you know what to do

Little_John

LiMH batteries the memory effect still exists but it is nowhere near as bad as it was in NiMH. but they still need conditioning before they reach their full capacity.

full 8 hour charge then run down to pretty much dead then charge for 8 hours if you can and repeate a few times if you can, that way you get the best possible charge in the battery and it lasts longer for longer.

I know how iritateing it is when you get your new phone and have to use your old one while it charges but it is worth treating the battery correctly for the first few charges to prolong the life between charges.

thecremeegg

I still go with what Mr Sony Ericsson says, which is 3 hours firsr charge