Got fresh new Battery - Any tips ?

Yep fresh new battery arrived , i set it in , and now takes the first charge cycle.

Its on the laptop for 5 minutes now , i had not turn-on the laptop,
and the AC adapter starts to run very hot.

The battery looks to be very cold .

Are they any special things that i need to know about the laptop batteries ?

How long it takes for one 4400mA 14.8v , to take full charge ?

I got the laptop second hand , originally was had one 2000mA in it , but was damaged from age.
So, i do not have something to compare the new one , with .

Thanks ..

 

I would let it take a FULL charge, then run the laptop on the battery until it is fully DEAD, then fully recharge once more. It's just an initial training thing I do on new batteries. Then once in awhile, maybe every few months or so, let it completely drain until it is dead, and fully recharge it.
I know some people will say that on newer batteries, they do not hold a "memory". But I do this on even the newer ones to be safe. Guess we need MythBusters to look into this!

 

This thread may help you: Battery Advice

 

Remember: the first charge should not be less than 15 Hours.

Cheers,
Theo

 

Since the time of my first post , i have not pull the plug yet .

I am aware , that i have to let the battery to " stretch " , its individual cell to top out at the named volt value.

This process goes slowly , due the internal resistance of the cells.

Thanks for the tip , even if it came a bit delayed .
So far .. all good .

 

Let it drain completely monthly and remove it from your laptop when it's not being used. Heat isn't the best thing for a battery, I learned that the hard way with $65.

 

Well about the heat issue ..

The truth are , that the new power pack (Battery) does not look to get hot,
no matter what !! (Mystery or not ? )

Even the time of charging , or even at the time of be active,
for about 2H + 40Min it did not got warm .
The Acer software reported as total operating time 4:20 Min.
But i did not got that prediction .

I noticed , that the battery compartment on my laptop , are away from any other internal part that cause heat. ( I guess that this is good , and the laptop has one successful design) .

But at the end , i am still on delimma , what i should expect as on-battery time, so to understand the quality level of the new battery ? ( I need to give seller a feedback )

I got the Battery from EBAY , Chinese seller , with good feedback.
I demanded from him to get a fresh made battery, and the one that i got, looks to be a good one , but by getting 3Hours instead of 4Hours i have mixed fillings.

I will run another On_battery cycle today , so to see how it gets.

 

I bought my 2nd battery for my old Toshiba laptop from an Asian seller on eBay too. Basically I drain it monthly, take it out when not used and store at 40% charge. Don't expect more than 2-3 hours battery life unless it's extended.

 

Ok ... good news , the battery life starts to expand .

The second testing cycle started after another 16 Hours powered by AC .

And then run one full on-battery cycle , removed any software controls on laptop power management .

I liked to see how the hardware will react , and i am impressed !!

At the time that the software monitor show 0% charge , in one minute or so ,
the laptop turned off by it self ... with out any windows software command.
( Thats not a normal way to do things - ONLY for testing)

The new cycle lasted as 3H 15Min ...
laptop was on the Power mode for spreadsheet.
But and i selected , the HD on all time on, and screen always on.
Wifi + PCMCIA off .

It feels good to know that i got a good battery , and not a potato .





.

 

CONGRATS on finding a GOOD BATTERY thru EBAY... that's like finding a needle in a haystack w/ no magnets!!!

looks like good battery times too!!

 

Thats true ...

Wen I was looking on Ebay , there are so many trying to sell batteries ...
And most of them are dishonest .
Other batteries are outdated , other have less cells inside than the description.

I have on my armory , one special tool ..
Its this link . http://toolhaus.org/cgi-bin/negs?User=&Dirn=Received+by


Add the name of any Ebay seller , and you will see in one page all the negative feedback , that he haves .

With it you can have a clear picture of whats happening with him.


From the one that i got my , i noticed that he is trying hard to build face .
Thats motivated me, to buy.

And i did not fall out .. the battery inside haves one microchip ,
that identifies it as ACER 1000 ... ( the details makes the deference)



.

 

nice little link...

and that microchip in the battery is KEY,, even with a NEW GENERIC battery people have a lot of trouble because that chip is not there.

 

So far i was aware that the microchip in batteries is there to assist and protect , functions as charging limiter - over charging protector - or temp sensor.

The description KEY , are new to me .

 

what i was saying is that the correct CHIP to communicate w/ the motherboard is essential (key) to the success of any AFTER-MARKET battery.

if that chip is not made for your exact model of laptop, then your computer can have problems trying to utilize the battery and control it's functioning.

 

I got the point bigozone .

Thanks man ..


.

 

Well the long story in sort , the battery died in seven months time .

I open it up ( electronics engineer ) .. found half cells dead zero volt .

I have contacted the seller , he said that he had 3 months warranty .

Right ..... i just ordered another one from another seller with 1 Year warranty.

In one year from now he will gets his feedback ...
Lesson learned well .

 

Sorry to hear you burnt your fingers.

I am due for a new battery soon and will try and locate an original Acer replacement.

Cheers

 

I would also do that if they did not cost as three from eBAY ....

Does ACER offers any warranty more than a year ?

 

Ok just got the new one .... this identifies it self as "ACER " ( 888 8cell ) .

I am at the first charge cycle , so have nothing to say more for now.

I will just add one picture of the diagnostic software , so to see how you can check your own battery status .

The seller send me also a small "users manual" with handy info .
I will try to convert it, to pdf and upload it ... later on.


.

 

ok more news ...

I did about 8 hours charging on the first run , but looks that the battery and the internal chip on the pack, stops the charging in a specific level , and stops there.
No matter how many hours the laptop will stay on power there is no further charge, for the batteries .

By having some knowledge over batteries , with those special programs ,
I manage to boost the voltage by 20mV, by letting the batteries to discharge from the 100% to 80% , and start another charging run ( Not cycle) .

As complete charging cycle , called as 100% discharge - recharge .


Now , back to my story , so i got the battery pack to the max sustainable voltage level .
That is 16682 mV = 16,68 Volts

The battery pack of 14.8V , has internally four cells in line for 2000 Ah ,
and the 4800 Ah packs have two lines in parallel , of four cells its .
In both cases , its cell can top out at 4.2v by four times equals to 16.8v or 16800 mV .

All this details can help us, to find how fresh is the pack , because there is a rule that says , that a battery cell after one year of it production,
it will loose 20% of it power , no matter what .

Software like HWinfo32 or everest , will show one indication as "battery wear level " .
When the battery comes as new, its set to zero from the factory,
this info comes from the special circuitry on the battery.

In praxis , this "battery wear level " , it will readjust it self , at the first discharge cycle .
Proving the true condition of the cells .
This indicator never goes up , it only goes down as the condition of the cells fall too .

In my case it show an indication of 4.5% "battery wear level " .

I was hopping to be zero , thats would prove 100% fresh cells , still its a very low percentage , and the power pack can be called as 96% healthy .

Now that it has stabilize it self , it offers about 3H 40Min backup time .
And needs 4H 30Min to charge to full again .
All this on the calibration mode , that i had run it two times , by letting one day to pass , before starting the next .

On normal use , i will let in use the ACER power management software , that turns the system off , at 10% battery capacity .

That does 3H 40 Min minus 10% of this time , equals to 3H 30Min of usable time .

So far .. so good .
I will retest and the next month , so to see how it goes .
I did not have the knowledge that i have now about batteries ,
or else i would had predict my first battery pack condition sooner.

Paying and learning .. thats how it goes .

 

How you know the laptop doesn't cut off before 15 hours have passed ??

If the laptop "thinks" the battery is full after 5 hours , the charging will stop...

 

FULLY DEAD ?

Does that mean putting the "critical battery level" in Power Options on 0 % ?

Can the battery not get damaged doing so ?

 

FULLY DEAD = 10% left in capacity !!

Thats the law for this type of batteries .

When the laptop reports Zero ... There is still 10% left in capacity , even if its not usable for the user .


If you are interested that much, about the technology behind batteries,
you need to educate your self , on specialized web sites .


About toping the battery on the first charge ,
I believe its a must do , because at the first charge batteries needs some time for toping , the charging circuitry , will stop - start - stop - start ,
until the batteries stabilize their voltage .