Hardware CPPro mod. Does it exist?

[The Real Jdbye]

That's entirely correct.


That's entirely incorrect. The threshold will be reached because the checking mechanism is connected to the 3DS's battery - the whole circuit will stop charging once that battery returns an acceptable value of charge. The 3DS's battery physically cannot be overcharged as it disables the charging mechanism and the larger battery cannot be overcharged as well since it's higher capacity than the 3DS's - at worst it can be undercharged which will not damage it.


This will not shorten the battery's life - battery life is determined by charge cycles, there's a fixed amount of charges before the battery starts deteriorating.

You're completely forgetting about the fact that the 3DS's battery checks its own charge - the signal goes to an internal circuit, checks whether the battery is charged or not and returns the value to the 3DS so that the system knows if charging is completed or not. The contraption will charge until the value returned is accepted and the batteries are parralel so their capacities do merge and they will charge until the voltage is correct.

If the 3DS does indeed only check the charge using the internal circuit, then you're right. I wasn't aware of this, but I know some devices check the charge directly by voltage level, and in that case I would be correct.
However you would have to make sure the extended battery wasn't fully charged beforehand.
Though if it will only charge until the internal battery is fully charged, then instead of getting an extended battery it would be better to get another 3DS battery and wire those together, so you have the exact same capacity and the exact same batteries (preferably with an even wear level) that way you don't waste money on a bigger battery than needed and it may also be easier to get the CPP to fit that way.

 

[Foxi4]

If the 3DS does indeed only check the charge using the internal circuit, then you're right. I wasn't aware of this, but I know some devices check the charge directly by voltage level, and in that case I would be correct.
However you would have to make sure the extended battery wasn't fully charged beforehand.
Though if it will only charge until the internal battery is fully charged, then instead of getting an extended battery it would be better to get another 3DS battery and wire those together, so you have the exact same capacity and the exact same batteries (preferably with an even wear level) that way you don't waste money on a bigger battery than needed and it may also be easier to get the CPP to fit that way.

I only didn't recommend getting another 3DS battery because he already has another battery. There could also be some problems with the second charging circuit since it may actually "block" charging the cell itself if it's not connected to a 3DS unit, but hey - that's just theorizing.

If the battery is anything like the PSP's (and as far as I know it is - it's easy to check it by just looking at the number of prongs) then I'm correct, if not, the 3DS would stop charging once the voltage of the combined batteries reaches an acceptable level like you said and then he'd indeed need to connect two batteries with relatively even capacities to avoid overcharging the smaller one like you said.

 

[codezer0]

That is not true - the level of charge is derrived from the slight differences in the current itself via a circuit and since the batteries are in a parallel connection, no confusion will take place as there's only one output. In fact, if you connect it correctly, it should show the level of charge of both batteries in the circuit since they'll be evenly discharged when used.

Many extended batteries usually have at the least a much higher mAh rating than the stock batteries, and a few are able to output/tolerate much higher voltages. All else being equal, the mAh's is what is significantly higher. Considering how teeny the stock 3DS battery is compared to even the Nyko battery, much less some of the Mugen Power batteries I'd seen for the handheld, laws of physics would dictate that there is no way that one could hold half a candle to any of the extended batteries out there on the market.

In any case, we're getting sidetracked. As I said, I was told that there was some diagram out there that shows there should be enough room within the depths of the CPP to allow dremel-ing a space out for at least the NyKo battery, since it has a bezel bottom (unlike the aforementioned MugenPower batteries, whose backs seem to create an additional layer to the standard 3DS's aesthetic); at least the same person that told me about this also stated I might at most just need to move a few wires here and there to assure proper functionality. It won't be as pretty as NyKo's cancelled solution to this problem, but it would open up my ability to play more games on this thing properly.

 

[Sicklyboy]

codezer0, if I win the auction I'm bidding on ebay right now for a CPP and RE: whatever it was, I'll let you know. I'm buying it with the intent of doing exactly what you're talking of.

 

[codezer0]

In that case, I both with you a lot of luck (at least a used one can be had cheap @ gamestop if it fails), and if you do succeed, I seriously would love to hear some details..

 

[Sicklyboy]

Oddly, I've yet to see a single one sold in a retail store, used or new, in my neck of the woods. That's the only reason I'm buying the ebay one (hopefully).

 

[codezer0]

Weird. Even when I moved all the way out here, I also found at least one used CPP. I'd obviously been holding back because of the battery issue, and also because it seems like I could never get a straight answer on that "mod" from anyone. Theories, but never anyone confirming or disproving.

 

[totalnoob617]

I wouldn't recommend connecting the internal and external battery in series.
The difference in capacity will cause them to charge/discharge unevenly and may wear out the batteries faster.
You may never get a full charge because the 3DS thinks it's fully charged when one of the batteries is only halfway charged. Similarly, the 3DS might think the battery is depleted when there's still a lot of juice left in one of the batteries.

actually that is a parallel connection ,not series, series would be poz to neg
connecting battery cells in series would multiply the voltage ,connecting them in parallel would multiply the current,
probably not a good idea to do either though

 

[The Real Jdbye]

actually that is a parallel connection ,not series, series would be poz to neg
connecting battery cells in series would multiply the voltage ,connecting them in parallel would multiply the current,
probably not a good idea to do either though

I'm aware that it's a parallel connection. What's your point?
I agree it's not a very good idea, but you most likely will not have any major problems with it as long as you use identical batteries, and you make sure they are equally charged when you first connect them together.