Ok, first of all, the memory effect you are talking about, is something different. The memory effect you refer to means the "dead" parts of the cell that can't take up more "charge" because they have not been used for a while, and thus they are a "dead" part of the battery. The overcharging I'm talking about does not have anything to do with the "dead" memory effect. You are conditioning the battery to take in more electrons, not teaching it to use the full extent of its cell that it already has.
Second, Li-ions take no damage of being completely drained (at least not noticeable for a mobile phone, that probably will have its battery changed out after 12-18 months). That is the "middle" generation Nickel-Metal Hydride (NiMH) battery that will take damage of that (the kind of battery used in high performance units that require a lot of power fast, but for a short time).
You are misunderstanding the term "overcharge". We are referring to "overcharging" the cell, as in forcing it to take in extra electrons to have more current to provide. The charging voltage is still the same. I have not told anyone to overload the charging circuit. This is potentially VERY dangerous, and OFC I am very aware of that.
Ok either the website you link to further down lies, or you don't know what you are talking about when it comes to Li-ion batteries
.
LINK From that link, you will see a table about half way down the page (sorry, could not find a permalink). This table states that battery voltages with 3.7 V (which is what the DHD carries), are either Li-manganese or NMC. Both of these are stated to require to have balanced cells for safety, meaning the DHD must carry multiple cells.
Just curious, where did you get your information that the DHD only carries one cell? If you think one cell because it only has "one pack", then think about laptops. They only have "one battery pack", but they pack 6-9 cells in them, depending on the size. The mobile phone battery just have downscaled cells, because they have a much less demand for power delivery.
Yes, your hobby and the link dealing with this, probably have figured out how to make the "expensive" large battery last long, as I'm guessing your hobby has something to do with RF controlled units or some big hobby requiring a lot of battery capacity. The thing is however, that your hobby does not give you insight into how to prolong the actually cycle of the battery. You use the battery as it is, till it is empty, but since you don't want to invest into batteries every few months as you probably spend quite a few cycles a week, then you have tips and tricks to prologging the cells life time. Unfortunately, those tips and tricks do not help here for the DHD and how to keep it up long without charging it often.
We have not talked about the differences people experience in power between each charge they have. We are talking about the same people, using mostly the same apps each day, and how they can prolong their battery life
Hope this explanation helped to clear a few points
. Good luck with your hobby
Hello.
Please understand I am not going to turn this into a flaming match and then a "who's right and who's wrong" debate, but before you give out any more inforamtion go and have a good read up on batterys. Specifically Li-Ion as used in the DHD as you are only quoting what you think is correct and not actual fact.
You have indeed been talking of memory effect in previous posts which as I have pointed out does not exist in the DHD batterys, as to over-charging you are also not going to see this happen.
A Li-Ion cell can only take in what capacity it is rated to, no more no less and without taking mine out isn't the stock battery 1200/1300mah? Hence it will only ever take in 1200/1300mah from dead flat to fully charged, no extra charging past when the light changes to green is going to make any difference. You mention you know the dangers of over charging these cells and so you can no doubt realise that no over charging will be allowed to happen.
Li-Ion do take damage from over-discharging, again I will point you in the direction of Google as it's your friend to search about how best to maintain a Li-Ion cell and prolong it's life span.
The reality is a Li-Ion cell is actually degrading from the minute it is made, how it is treated while in use then has a bearing on how long it will last into the future.
Nickel Metal Hydride and NiCad which do not suffer as much from over discharging if much at all, in fact these type of cells benefit from it to get over the previously mentioned memory effect you speak of.
You cannot force a cell to take in extra "electrons" what you're trying to say is force in more capacity, eg. mah (MilliAmp Hours) which is what effects the run time of an electronic gadget.
As an example say we fitted a 3000mah battery to our DHD's then we would increase it's time between charges.
Voltage is totally different and needs to stay at 3.7 volts or else we would destroy our DHD's due to over voltage, but the mah (capacity) of the battery can increase without worry to give us longer run times.
Pictures here to help understand voltages;
HowStuffWorks "Battery Arrangement and Power"
The problem is I do know my batterys and I'm keen to highlight to people that what they read isn't always correct.
Unfortunately in doing so I'm going to upset you by pulling apart your theory, but hopefully I will also get you to understand fact rather than fiction.
A standard Li-Ion or Lithium Manganese single cell, eg. one cell, it's operating voltage is 3.7 volts for one cell. Our DHD's only need 3.7 volts and hence only have one cell, explaining the small foot print of the battery used within the phone compared to that of a laptop battery.
Agreed these type of cells do need to be balanced when assembled into packs of two or more cells, which depending on how they were wired together would either increase output voltage or capacity.
If you look at a laptop battery you will see they output on average 14volts+ and capacitys of 4000mah+, to do this requires multiple cells linked together in series and parallel which increases both voltage & capacity.
A clue that there is only one cell in the DHD battery is the fact it only has 2 major connections, in order to balance individual cells there needs to be connections onto each individual cell. Also the excess voltage of any cells needs to be absorbed by something while the remaining cells, during the charging phase, catch up so all the cell voltages match. This would create heat, heat which cannot be dissipated from our DHD's.
It maybe that in order to achieve the capacity of the DHD battery that there might be two cells inside, but these would be wired in parallel to keep the voltage at 3.7 volts but increase the capacity. However I seriously doubt it as it would increase production costs, a single cell is much more cost effective.
You are correct on one thing, I do fly RC model helicopters in which I use Lithium Polymer/Lithium Ion batterys to power them. From this I have learnt how to prolong their life span as these packs are more expensive than our DHD ones.
While the application is different, eg. an RC heli to a small phone, the basic rules on what works and what doesn't still applies.
What to some may sound as a glorified toy is infact very specialist, especially when it comes to batterys which have been built around the mobile phone battery technology.
How you use your phone has the major impact on battery life, eg. apps and connections running etc. However you have been keen to promote a technique which does nothing but degrade the battery.
I agree while it may not happen now at this moment, people will keep on using this information you have given them thinking it's got to work as I've bene told it does, when in reality it doesn't.
If you are really keen to know your batterys please read here and do you own searches;
1.
how to prolong a Li-ion battery's life? - CNET Peripherals Forums
2.
How to Prolong the Life of Lithium-Based Batteries | Castolon LLC
3.
Secrets for prolonging lithium-based battery life
Taken from above link;
"A lithium-ion battery provides
300-500 discharge/charge cycles.
The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges."
"Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as “digital memory”. Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery’s state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate. (Read more in ‘Choosing the right battery for portable computing’, Part Two.)"
Ian
. Do not be sucked in. Learn from my mistake. Lol.
.
). The security level is still set to high as usual.
)
