New Battery Charging Tips?

[FEE5FOFUM]

What Is The best way of charging a new "li-ion" battery to get long life out of them ?

[Boss_429]

I could be wrong here but Li-Ion batteries have no memory effect. So, if you charge it fully, it will have a full life. If you charge it partially, it will have partial life. But, you will not effect the amount of charge it can hold.

Make sense?

[mcurtiss1970]

In addition, i've heard that LiIon batteries should not be fully discharged. in other words, keep them relatively topped off at all times.

[DF@Work]

The debate has been endless... no one knows for sure, much less has anyone done research (ie anyone want to donate me three 5600s and I can test the theories...)

[Boss_429]

I don't think there is any need to keep them "reletively topped off". Just don't fully discharge and you'll be good to go.

Heck, my Sanyo 5300 shuts itself off when the battery gets too low so I doubt there is even a chance of that.

Bottom line, don't concern your self with it. :huh:

[uberhorn]

my V60v uses Li-ion & Motorola suggests never letting it go completely dead.

[FEE5FOFUM]

THANKS FOR ALL THE INFO ! !

I DID COME ACROSS THIS WHILE SEARCHING AROUND GOOGLE . LET ME KNOW YOUR FEEDBACK ON THIS ..

[URL=http://vidmar.net/weblog/archive/2004/06/11/308.aspx]

(I HOPE THIS LINK WORKS). :

[jbjtkbw00]

The main drawback that I hear about Li-ion isn't at what level you charge it, but the frequency of charging. I've read that if you charge TOO much as in too many times, then that will weaken the battery that much quicker.

If I can find a reference to this information, I'll post links to it.

[Dan]

The main drawback that I hear about Li-ion isn't at what level you charge it, but the frequency of charging. I've read that if you charge TOO much as in too many times, then that will weaken the battery that much quicker.

If I can find a reference to this information, I'll post links to it.

Most LiIon batteries have a rating of charge cycles..... somewhere around 1000 was a number I have seen. Obviously you want to keep a charged battery but letting it drain down a bit once a week or so and then charging it should do the trick for any memory it would have gotten. Yes LiIon batteries develop memory contrary to what they tell you, its just ALOT harder to have it happen than NiCad or NiMh ones.

Samsung only lists how long it takes to charge a "dead" battery for my phone in the pathetic manual that comes with it so thats no help.

[jonnythan]

The debate has been endless... no one knows for sure
Just because you don't know doesn't mean that no one knows.

Keep the battery topped off whenever possible, and every time you drain it more than 75% shortens the life of the battery that much more. There's no reason to let it discharge to any significant degree before recharging.

In addition, Li-ion batteries lose capacity as a function of time - you can expect to lose 10-20% every year, regardless of how much you use it. Any loss from excessive discharge is on top of that number.

[fever]

What everyone has said is valid, but it is important, from everything I've read, to fully charge the battery the first time, and then let the phone shut itself off, then charge fully, and you're good to go. This lets the circuitry in the phone know what it's really working with. That being said, when the phone shuts off, it's not really dead, and also the charging circuitry is really in the phone, and not the charger. But I still don't fully trust vehicle chargers, so I only use them in an emergency, and never let them "trickle", even though that doesn't really happen with Li-Ion. And never leave a vehicle charger plugged in.

f

I wish phones still shipped with desktop chargers standard.

[Pg2k3]

The A700 Has a Desktop charger. It charges pretty quick in my opinion.

[fever]

The A700 Has a Desktop charger. It charges pretty quick in my opinion.

Nice. I figured if anyone still did it, it would be Samsung. Plus, as far as I know, these phones are or used to be retail boxed with a desktop charger, vehicle charger, case, and possibly travel charger, and the carriers would just repackage them and the items seperately. I'm not sure if this still happens, but looking around the stores and seeing how EXACTLY similar accessories are packaged, I'd say it's a good bet that it's still going on.

And yes, I know/assume we'd pay more for the phones if they came with all that stuff.

f

Kinda like the whole printer/usb cable thing... It used to be things came with too many cables, now they don't come with any! I just bought two Lexmark printers, and I was PISSED that they don't come with USB cables and can't use the older style printer cables. It's like buying a non-wireless mouse without a cord! (Dear God, I hope there aren't any Logitech execs reading this...)

[Pg2k3]

Nice. I figured if anyone still did it, it would be Samsung. Plus, as far as I know, these phones are or used to be retail boxed with a desktop charger, vehicle charger, case, and possibly travel charger, and the carriers would just repackage them and the items seperately. I'm not sure if this still happens, but looking around the stores and seeing how EXACTLY similar accessories are packaged, I'd say it's a good bet that it's still going on.

And yes, I know/assume we'd pay more for the phones if they came with all that stuff.

f

Kinda like the whole printer/usb cable thing... It used to be things came with too many cables, now they don't come with any! I just bought two Lexmark printers, and I was PISSED that they don't come with USB cables and can't use the older style printer cables. It's like buying a non-wireless mouse without a cord! (Dear God, I hope there aren't any Logitech execs reading this...)

LG also has many models that use a desktop charger. Having a desktop charger only can really help you save on your daytime minutes.

[fever]

LG also has many models that use a desktop charger. Having a desktop charger only can really help you save on your daytime minutes.

What? Daytime minutes? How so?

f

[Pg2k3]

What? Daytime minutes? How so?

f

Come on now? You really want to hold the desktop charger and all to your face while talking on the phone? The alternative to that is to have a spare battery. My desktop charger has a slot for a spare while charging the one installed on the phone.

[FEE5FOFUM]

TODAY AROUND 10:00 AM I STARTED CHARGING MY MM-7400 BATTERY , IT
ONLY TOOK A LITTLE LESS THEN 2 hrs TO CHARGE A DRAINED DOWN BATTERY . I FIGURED IT WOULD TAKE ABOUT 3-4 hrs.

THIS IS THE SECOND TIME I CHARGED THIS BATTERY , IF I REMEMBER
THE FIRST TIME IT TOOK ABOUT 2-3 hrs . I GOT PRETTY GOOD TALK AND STAND BYE TIME EVEN WHEN I USED VISIONS, BETTER THAN MY LAST PHONES.

I KNOW YOU DON'T NEED TO LET IT GO TO NOTHING BEFORE CHARGING. BUT I THOUGHT THE FIRST TIME YOU NEED TO FULLY DRAIN IT THEN AFTER THAT JUST CHARGE IT ANYTIME..

THATS WHY I WROTE THIS THREAD , TO GET SOME TIPS ! !

THANKS FOR ALL YOUR FEEDBACK ..

**ONE MORE THING , CAN I USE MY OLD LIGHTER CHARGER FROM MY 5300 PHONE? WITH THE 7400 ?

[jonnythan]

What everyone has said is valid, but it is important, from everything I've read, to fully charge the battery the first time, and then let the phone shut itself off, then charge fully, and you're good to go.
This is only a good idea if you want to knock 20% of your battery's lifetime off in the first couple of days.

Do your absolute best not to let the phone run itself to the point where it tells you to charge the battery or it turns itself off. I promise you, this damages the battery.

[mooney73]

This is only a good idea if you want to knock 20% of your battery's lifetime off in the first couple of days.

Do your absolute best not to let the phone run itself to the point where it tells you to charge the battery or it turns itself off. I promise you, this damages the battery {...}

Keep the battery topped off whenever possible, and every time you drain it more than 75% shortens the life of the battery that much more. There's no reason to let it discharge to any significant degree before recharging.

In addition, Li-ion batteries lose capacity as a function of time - you can expect to lose 10-20% every year, regardless of how much you use it. Any loss from excessive discharge is on top of that number.

I'm skeptical about your advice. I have habitually and purposfully not recharged my LiIon battery until the phone powers itself down -- an old habit carried over from experience with NiCad and NiMH batteries. Three years after purchase, I'm getting about 5 days standby / 120 minutes talk time on a charge... or about 60% of its original capabilities. To me that seems to be on par with (or slightly better than) the battery degradation associated you've associated with general age... without the added effects of 'over-depletion' you've suggested above.

Unless the instructions or a package insert says otherwise, my next LiIon phone will be charged for 12 hours (or overnight) upon receipt, recharged when depleted, and recharged at the end of every depletion cycle thereafter.

Follow the packaging's instructions, folks; if it doesn't have any, use as you see fit.

[FEE5FOFUM]

The main drawback that I hear about Li-ion isn't at what level you charge it, but the frequency of charging. I've read that if you charge TOO much as in too many times, then that will weaken the battery that much quicker.

If I can find a reference to this information, I'll post links to it.

I found this :http://vidmar.net/weblog/archive/2004/06/11/308.aspx

[JimmyConway]

Batteries typically wear down from 12-18 months depending on how much you use them, I don't think there are any tricks to make them last. Before buying a new one bring your old bat. to a Sprint store, leave it overnight and have a tech refurbish it, often you will gain back more of the "out of the box" life. Avoiding water will help too! :)

[KingCoop]

Avoiding water will help too! :)

I'm very sure it would too! And I'm sure everyone tries to do this, unless they have problems.

[erwin1959]

I went into the sprint store here a week or two ago and the store manager said thaey have a machine will can recondition a bettery for customers... haven't been yet.

[ALPHAMAN]

Wirelessly posted (Sanyo MM7400: Mozilla/4.0 (MobilePhone MM-5600/US/1.0) NetFront/3.1 MMP/2.0)

You Can Leave A Vehicle Charger Plugged In. It Does No Harm. I Have Had Mine Plugged In For A Year. I Just Plug My Phone In Whenever I Get In Car. Then Just Charge It At Home. Always Keeps Me Fully Ready To Go.