5000mAh New Li-ion Extended Battery with Cover for Nintendo 3DS, N3DS, CTR-001, MIN-CTR-001

Quick and Dirty, "TL;DR") Version: In a nutshell, the reviews do not lie. You can gain several hours OR DAYS on a single charge, and a charge is a reasonable ~4 or so hours. Yes, it adds heft and weight, but it isn't overwhelming (though if you have weak wrists or fingers it could pose a problem). You will NEED a Phillips #00 screwdriver for both the 3DS screws and the new battery screws. I played for several hours straight on a 3DS game, plus some hours in sleep mode, WiFi and 3D on the WHOLE TIME with brightness at 3 (for comfort) - lost one bar by the end of the day. Very well worth the money. Full Review with Back Story: I bought a used 3DS from a guy on eBay. The description said "Adult Owned" and that it came with a charger and stylus. It looked good in pictures. Upon receiving it, it was in good overall condition but even after charging it fully, it would start flashing red and die within SECONDS, after only a couple hours of play, and even though 3D was off. It didn't leave me any time to save. I was perplexed because no one else seemed to have as awful luck with the battery as I was having. Most of what I read said that the 3DS battery was good for only about 3 hours, but it seemed that the light was supposed to turn red for awhile, THEN flash and even then, should've at least allowed for a few minutes of time to save and get it on a charger. The best I managed was with Power Save - On, Brightness - 1, 3D off, WiFi off, playing a regular DS game. I think I got about 3-4 hours max before it shut off with only 1 or 2 flashes (almost instantaneous). After dealing with that, I decided that the battery must have been going and so I needed to replace it if I wanted to get any portability (I mostly played on the charger). I was instantly attracted to this battery for the long life between charges (based on reviews). I wasn't leery about "voiding my warranty" since I don't have one, and the reviews put me at ease about the possibility of the battery overcharging and killing the 3DS. I didn't want to blow a comparable amount of money on a regular, OEM replacement, affording me only the regular 3DS lifespan (considering most people in the forums complained about it only lasting a few hours). I didn't even want to get a "double the battery life" product, when the reviews for this promised MANY hours, and even DAYS. I figured worst case scenario, I would just get better time than what I was getting, best case - tons of extra time. I bought mine from MPF (on Amazon), because it was cheaper than the one with free Prime shipping and they said that they provided a screwdriver tool. They did, but it did not work. I don't say that to deter you from buying from them but rather because you will still need a #00 Phillips. This is a pretty specific screwdriver and the cheapo jeweler/eyeglass sets generally do NOT appear to contain them (I'd bought one, but ended up taking it back). I found mine at Ace Hardware, but I would suggest just finding one on Amazon or eBay and ordering it at the same time as you order the battery. The only #00 Philips I found were parts of sets that cost over $10, but I saw singles online for $4. Once I finally got the back off, I discovered why my battery life was so terrible and why the flashing was so abrupt (with no regular red light to warn you). The eBay seller had completely neglected to mention that the battery was some cheap knockoff! I was worried while considering my purchase of this battery about using a non-Nintendo product - and here there was already one installed. It didn't even fit properly in the 3DS as there were folded pieces of paper keeping it snug. On the other hand, the new battery fit perfectly, but since it is so much more capacity, it's also so much more battery. It covers the whole back, hence it comes with its own cover and screws (shiny dark gray/black). The screws are TINY - literally about the size of ants. Again, you will NEED a Phillips #00. Once I got it installed, I kept the 3DS off and put it on the charger. I left it charging for several hours After around 3 hours, I tried what other reviewers have done and unplugged it and plugged it back in. Light stayed orange. (My boyfriend actually remarked that the charge light appeared to glow brighter with the new battery.) I plugged it back in and checked again (same method) after another hour. This time, the orange light went off a moment after plugging it back in. I took it off the charger and started playing. The weight difference was noticeable immediately, and the grasp was a little different. I turned the brightness up to 3, and turned the 3D up all the way. Kept WiFi on, volume up about halfway (no headphones). I did keep power saver on, but only for the apparent blue light reduction. Played from 5:20pm to 6:45pm. Put it in sleep mode with WiFi on. Came back to it around 8pm. Played until about 11pm using the same settings as above. Still had full battery when I went to bed. I went to sleep and put it on the charger overnight. When I woke up, the orange light had gone off automatically, as it has all subsequent nights. I am guessing that the orange light just takes longer to go off on this battery? I decided to test the battery more, and I was still amazed at the new portability. I took it off the charger around 11:30am. I played off and on several hours throughout the day (WiFi on, volume up, 3D up at times but not the entire time). Had it in sleep mode in between. Decided to even watch a 1.5 hour movie on it on Netflix. By the end of the day, I had finally managed to lose 1 bar. Overall, this is an incredible buy. I have always charged it at night, but I could see it easily lasting several days - particularly if you aren't playing for several hours at a time. The weight and added thickness *are* noticeable, but unless you are playing for hours and hours on end, I don't think it would be too much. My wrists would give out before this battery would, but I think my desire to play would give out before my wrists would. I also was worried that after all the time playing, it might get hot (as some reviewers mentioned with other 3rd party batteries). It did not. It barely felt warm at all, so I don't feel like I'm going to damage my 3DS with it in any way. Please see my photos, which include a picture of the original 3DS, the height (using a 3DS game for reference) without the battery, height with the new battery, the size of the screws against the font and next to an actual ant, the screwdriver that you'll receive if you buy it from MPF, and the screwdriver you'll actually need. My 3DS is black so the back being black doesn't matter but I would think the aesthetic difference would be worth the additional play time. If you own a 3DS, even if you have a real Nintendo battery in there, you can't go wrong with this. Not only could you manage full length flights, it could go on camping trips and probably survive several days on a full charge with moderate play. I almost regretted buying the 3DS (not knowing it was a knockoff battery) but this changed my mind!

So I got this thing last tuesday and immediately popped it into my 3ds. It came with the screws and case to put it all togeather. Install is a piece of cake... if you have an eyeglass screwdriver. Those screws are a bit tiny. That is the only difficult aspect of install. The case add on to house the battery is initially unwielding. Makes the system a smidge more heavy adds about 3/4 of an inch of girth to the system. Read a previous review and was worried it would be tight when put in my pants. As I do not wear hipster jeans it fit no more tightly than the original system. So I charged it up for the night. Wednesday morning I unplugged it. Proceeded to carry it to work, went about my day with it. Average use, streetpass and a few games here and there for 10 or 20 minutes at a time. Got home and normally the system would be anywhere between 2 bars and the flashing red lights of doom. However when I brought it home after installing this battery. it still read as it was fully charged. I was curious, how far could it go? so I set about testing it. Thursday - No reduction in battery after that day, average use. Friday- same result, battery read full all day, average use. Saturday - battery went down to 3/4 bars got consistent use throughout the day. Switched screen brightness from 3 to 5(something I haven't done for 2 years). Time to really test it. Power saver still on. Sunday - still 3 bars back to average use. Kept it on me all day, was officially used to the shape difference of the system. Day ended with 2 bars. Monday - still 2 bars, slightly more use, borderline, for adult with game system. Tuesday - Finally at one bar in the morning. went most the day with average use. Around 5pm it started doing the red flash of doom. Played the system more just to test it. Stayed flashing till I went home. Most times the red flash of doom means maybe 20 minutes left till it dies. It probably could go another day flashing I'd bet, or at least till morning. plugged it in to charge. Unprecedented improvement for a 20 dollar thing. It went 6 full days without a charge with varying use. Compared to the 3ds's measly survival rate of about 3 -4 hours of gametime. It is incredible. Despite the low reviewers claims I felt the durbility of the case was never in question. In my left front pocket every day, wasn't any more uncomfortable than the original system only slightly more heavy. Once you get used to the extra girth it becomes kinda nice. It felt more solid and full in my hand(heh). There are problems, but totally acceptable problems. For one the Circle pad pro is now totally unusable with the system as is the kid icarus stand and the charge dock. These are perfectly acceptable cons for a 15 fold improvement in battery life. I totally recommend this for anyone who can live without circlepad pro and the charge dock and isn't wearing skinny jeans. PROS: Adds welcome girth and weight for big hands. Turns half day battery life into 6 DAYS OF POWER. Makes the brightness of 5 possible. SIX - DAYS - OF - POWER makes friends laugh and then be very jealous. CONS: No more CPP(aw) No more Charge dock(grumble) No more Kid ICarus uprising system stand (do people use that?) No More Skinny jeans. (HIPSTER!) UPDATE: 6 months later and the battery has not lost any charge. Plastic case still holding strong. It's nice to only charge your 3ds once a week with animal crossing and pokemon being out. 2nd Update: Alright there are minor issues to note. Battery power is still strong almost an entire year later. The screws seem to fall out very easily. Not sure why. The corners Do tend to hurt. Made some cushioning with ducttape and some cotton. That made it nice. However, back plastic is still holding very strong. I have this system in my left front pocket every day. So no worries there. though those dang screws. What a pain. Make sure they're tight if you get it.

Excelente muchas duración en el DS 3 y fácil de colocar muy recomendable

Works incredibly, adds a good bit of weight and girth to the 3DS which makes it so much more comfortable to hold. The battery life is insane, I was playing it for about 2-3 hours with 3D enabled and it only went down one bar of battery life. My 3ds would otherwise typically die in that timespan when using 3D. I can’t comment on the charge time yet, as I’m going to fully drain and then fully charge the battery 2 times to break it in properly. Otherwise, this is easily the best purchase you can possibly make for your 3DS.

You need to verify FIRST the version of Nintendo 3ds you currently own. If you have what is referred to as an OLD 3ds then this will 100%. If you have what is referred to as a NEW 3ds 2ds xl or 3ds xl then NO this will not help you and you will need to find another model. Tested this with my OLD 3ds and worked Beautifully!! After the first charge I let the device idle for an hour. Didn't even budge the battery! Even took a trip out of town and back. At least 1 hour trip there 1 hour back. STILL FULL!!! SO! If you play/use emulator on your OLD 3ds then you MUST have this battery pack! Your games will thank you for it with hours upon hours of enjoyment before your next recharge! They only Con that may deter some buyers is the fact that once installed.... You can never uninstall it... Nawh jk lol. It is a much larger battery of course so there for you will have issues with a cover case. Most of these just snap on. Maybe with a Dremel and some patience you can hack up an old clear case to fit the extended battery. Other then that for cons may be weight? It does kind double the weight of the console

Muy buen producto dura bastante la batería, a lo mejor un desarmador por qué como cuesta quitarlos jeje pero de ahí en fue muy buen servicio

Easy to install, but you will need a Phillips head 1.5mm #000 screwdriver