How to prepair a virgin battery?

[shortstack2000]

Originally Posted by Curb71

Ive had problems in the past with my battery lasting only a few hours after the battery is only a few months old and Ive asked a few people at Sprint how long to charge the battery when its brand new and any other tips to prolong the life of the battery and everyone seems to have a different answer. Im wondering what the best things to do are for a new battery so it lasts as long as it can.

Its pretty simple, the very first time your battery is charged, to not inturrupt the charge and let it charge fully, best to just leave it on the charger overnight. The very first charge is a "memory" that the battery will keep, so a full charge the first time and after that it does not matter, ive done that with over a dozen phones, pda or not, and always had exceptional baterry life for the phone i am using.

[sn0b0ard]

Originally Posted by shortstack2000

Its pretty simple, the very first time your battery is charged, to not inturrupt the charge and let it charge fully, best to just leave it on the charger overnight. The very first charge is a "memory" that the battery will keep, so a full charge the first time and after that it does not matter, ive done that with over a dozen phones, pda or not, and always had exceptional baterry life for the phone i am using.

Lithium Ion batteries DO NOT HAVE MEMORY. This was from the old Nickel-Cadmium batteries. The first charge will only take a few hours (depending on the capacity), and this does not change at all during the life span of the battery. In short, you do not have to charge Lithium Ion batteries for 12+ hours if the regular charge is only 3-4 hours.

[shortstack2000]

Originally Posted by sn0b0ard

Lithium Ion batteries DO NOT HAVE MEMORY. This was from the old Nickel-Cadmium batteries. The first charge will only take a few hours (depending on the capacity), and this does not change at all during the life span of the battery. In short, you do not have to charge Lithium Ion batteries for 12+ hours if the regular charge is only 3-4 hours.

as far as all information i have read on all lithium ion batteries, they do not keep a memory based on how they were last charged, but they do have a memory on there initial charge, as i stated earlier. the old nik cad batteries had a refreshed memory everytime it hit a charger. With the new ones, the initial charge is all that matters. Yes 2-3 hours is usually all it takes to fully charge a new battery, but leaving it on overnight makes the user less likely to play with it while it is charging initially and taking the change of it being removed from charger

[sn0b0ard]

Originally Posted by shortstack2000

as far as all information i have read on all lithium ion batteries, they do not keep a memory based on how they were last charged, but they do have a memory on there initial charge, as i stated earlier. the old nik cad batteries had a refreshed memory everytime it hit a charger. With the new ones, the initial charge is all that matters. Yes 2-3 hours is usually all it takes to fully charge a new battery, but leaving it on overnight makes the user less likely to play with it while it is charging initially and taking the change of it being removed from charger

Seriously though, they don't have any memory at all. And that's a good thing, because it doesn't take as long to charge initially!

It's a common misconception because we have all been indoctrinated with overcharging on the first charge. That's mainly because Nickel-Cadmium was the battery of choice for so long. And then came Litium-Ion. From Cadex Electronics:

"Lithium-ion is a very clean system and does not need priming as nickel-based batteries do. The 1st charge is no different to the 5th or the 50th charge. Stickers instructing to charge the battery for 8 hours or more for the first time may be a leftover from the nickel battery days."

Source:
http://www.batteryuniversity.com/partone-12.htm

[ken830]

I mostly agree with MSWLogo... People shouldn't be giving advise based on some perceived, uncontrolled, un-reproducible test results... I mean.. not even test results, but merely personal observation...

Lithium-Ion cells are created by chemists, researchers, and engineers, all of whom studied the chemistry of various cells and designed the batteries to be charged and discharged in a very specific manner for some very good reasons.

And the phone/charger manufacturers designed the battery packs and charging circuitry so that you and I don't have to have a deep understanding about the way it works.

Lithium-Ion cells should never, ever be discharged completely. In fact, they should really never be allowed to drop below about 2.7V cell to prevent permanent damage. Below 2.5V, and most won't even be usable anymore. And if it's severely discharged, internal shorts will form, creating dangerous conditions if charging is attempted. But consumers don't need to know all of this. So, the battery packs all have built-in circuitry to cut-off current when capacity reaches a pre-defined level. You and I don't have to worry about it.

Lithium-Ion cells should also never, ever be over-charged. They can be charged at a constant pre-defined current, or charge rate (about 0.8 to 1.0 C), until a threshold voltage is reached (about 4.2 V) and then the current will need to be throttled down to maintain a constant voltage. Charging should stop when the charge current to maintin the constant voltage is below a certain threshold. So, the battery chargers and phone manufacturers build-in charging circuitry that will NOT trickle-charge the battery after going through the proper charge cycle. It should be smart enough to periodically keep it topped-off with short periods of current. You and I don't have to worry about it.

Lithium-cells (as with cells of any other type of chemistry I know of) also have maximum discharge rates as well. Unlike Nickel-based cells that simply loose much of their capacity and efficiency when you discharge too quickly, Lithium-based cells can become dangerous. But they have safety circuitry to prevent that from happening too. So you and I don't have to worry about it.

We only need to keep the battery at a reasonable full level, and that's the best we can do.

There are a lot of blantent misconceptions/rumors/misinformation floating around about Lithium-Cells:
- Lithium-based cells do no exhibit "memory" effects.
- They do NOT need "cycling" or "priming" and it will not help in any way. Period.


In contrast, in the R/C hobby, we don't have a lot of these inherent safety mechanisms built-in. We use raw-cells and have to program our chargers to properly and safely charge and monitor our battery packs.

[silver-eagle]

It's hard to let the device charge uninterrupted for 12 hours when it is your primary phone as mine has been for the last 4 years. (Odd, but that seems to be true now with most folks. Call the cell because they're more likely to be close to it.)
As to battery life, google lists lots of references. One of the things I noticed though, is the lack of battery manufacturers from the list. Most are either echos of what's printed in our owners manual or anecdotal
Good luck. These batteries are in everything. And they hardly last as long as we need them (my GPS seems to have about 4 hours).
http://electronics.howstuffworks.com...n-battery2.htm

[Lylej2k]

Originally Posted by ken830

.


In contrast, in the R/C hobby, we don't have a lot of these inherent safety mechanisms built-in. We use raw-cells and have to program our chargers to properly and safely charge and monitor our battery packs.

woooohoooo another R/C guy! I'm not the only one... but I'm a nitro nut. i think its the fumes...

[sn0b0ard]

Originally Posted by Lylej2k

woooohoooo another R/C guy! I'm not the only one... but I'm a nitro nut. i think its the fumes...

I love nitro!

I have a Team Associated RC10GT2. What do you run?

[Lylej2k]

Originally Posted by sn0b0ard

I love nitro!

I have a Team Associated RC10GT2. What do you run?

Traxxas Jato 3.3 and 33% nitro just for fun.

and just like my phone I've modded and tweaked the hell out of it.

[ken830]

Originally Posted by Lylej2k

woooohoooo another R/C guy! I'm not the only one... but I'm a nitro nut. i think its the fumes...

I have a few, and I haven't played with them for almost 2 years now, but my main rides include a brushless X-ray M18 and a brushless AE Factory TC-4, both heavily modified... I think these two cars alone have sucked more than $1,500 from my wallet...

But brushless is the future. Nitro cars can't keep up anymore!