Nitecore D2 – 2 Bay Digital Battery Charger

The Nitecore D2 is a universal smart charger compatible with almost all cylindrical rechargeable batteries, thus eliminating the need to own several chargers. The D2 automatically detects Li-ion, Ni-MH and Ni-Cd batteries, and through manual selection is also capable of charging LiFePO4 batteries. Intelligent charging circuitry selects the optimal charging mode (CC, CV and dV/dt) for a given battery and each of the D2’s two microcomputer-controlled charging slots then monitors and charges the battery independently. Furthermore, an integrated digital LCD screen clearly displays charging progress, voltage, current and time while an intelligent automatic power-off function terminates current when charging is complete. The Nitecore D2: The world’s most advanced fully-automatic digital charger. It’s as simple as insert, detect and charge. 18650
20700
21700

Product Highlights:

2 Bay Charger
.5A x 2 Charging Speed
Detailed LCD Screen displays charging status, time and more..
Automatically turns off when charging is complete
Reverse polarity protection protects if cell is entered in the wrong way

Packaging Contents:

Nitecore D2 Digital Battery Charger
Standard USA Power Cable
User Manual

Additional Features:

Capable of charging 2 batteries simultaneously
Each of the two battery slots monitors and charges independently
Optimized charging design for IMR batteries
Integrated LCD panel clearly displays charging parameters and progress
Two conveniently located side buttons allow easy selection of specific battery types and charging parameters
Intelligent circuitry detects the battery type and status before entering automatic charge mode (CC, CV, dV/dt)
Automatically detects battery power status and selects the appropriate voltage and charge mode (with the exception of LiFePO4 batteries which require manual selection)
Compatible with LiFePO4 batteries
Compatible with small capacity batteries
Automatically stops charging when complete
Features over-charge prevention to protect batteries
Features temperature monitoring to prevent overheating
Made from durable ABS (fire retardant / flame resistant)
Features reverse polarity protection
Designed for optimal heat dissipation
Certified by RoHS, CE, FCC, CEC and KC

Specifications:

Input: AC 100-240V 50/60Hz 0.25A(MAX), DC 12V 1AOutput voltage: 4.2V ±1% / 3.7V ±1% / 1.48V ±1%Output current: 500mA x 2
Dimensions: 143mm× 74mm×36mmWeight: 168g (without batteries and power cord)

Compatible with:

Li-ion / IMR / LiFePO4: 26650, 22650, 18650, 17670, 18490, 17500, 18350, 16340 (RCR123), 14500, 10440
Ni-MH / Ni-Cd: AA, AAA, AAAA, C

Adam N.Works great. Only charges at 500ma so it takes a while, but being able to charge almost any battery you can find is pretty nice. Also if you charge at a lower current, it doesn’t wear down the life of the battery quite as fast. Would recommend.Alexander B.It is well made digital charger and does exactly what is advertised for. Charged 5 pairs of 18650 batteries with different capacity without any issues. I would recommend it to anyone with rechargeable 18650 batteries.Jason K.This charger ROCKS! Have only had it for a few days but it functions and works great. Love the auto sensing feature for battery types and the over all ease of use. Great charger all the way around.Alex P.Charger works great, and does exactly what is supposed to. Only issue I have is battery slots are deeper and more narrow than my last Nitecore charger. This makes it difficult to get 18650 batteries out. You have to grip the sides of the battery hard with your fingertips, otherwise the spring loaded bottom tab of the charger will launch your batteries as you’re releasing them.Joe C.Steven E.Haven’t gotten to use it yet, but it appears to be exactly what I wanted. Only wish it was stated that it didn’t come with the car charge cord. I would have purchased that at the same time. Darwin W.It works very good. Hopefully it will extend the life of my battery’s. Shipping was quick and packed to protect it. Been using it for a few days now and have no complaints.Alan P.Had one like it for 6 or 7 years.New one looks a little different from the old one.Hope this one lasts as long as the old one.Dallas G.Shipment was good and timely. Price was on par with other vendors, perhaps a dollar or 2 less in most cases. Does charge well and seemed to bring back to life a few cells I thought were toast. The charging process was rather cool(temp) compared to my old charger, which is a good thing. I also like the connection port for using it in a vehicle/cigarette lighter, however this unit did not include the cable for that use. Not a deal breaker for me as I rarely travel and need such an option. Richard C.The Nitecore D2 is dummy proof. Just insert your batteries in the correct orientation and it will handle the rest. It can charge so many different battery types. You can also turn off the back light so it doesn’t bother you at night. I have zero regrets buying this!Harold S.Great charger..fastewen a.I have charged two sets of batteries and the charger has performed as advertised.Zachary B.Charges slow but steady. Big fanMichael M.Charges my Samsung 30Qs right up to ~4.2 volts at a nice slow speed (500mA) to prolong the life of the batteries. 10/10 would buy again (but if I really needed another on top of this I’d go with a bigger one instead)AITOFELE S.Confusing at first, but works great!! Love itTerry M.Charged fast.Charged Any battery I’ve put in it. AA AAA C. Just don’t put in and leave a battery that’s nearly full charge.Seemed to want to charge to next higher voltage battery.3.7 volt battery at 3.6 volts.Wanted to charge past 4 volts.Just keep an eye on it until your used to it.DAVE T.I was so happy when I saw your charger on line when I was looking for a repalcement! Actually we have 2 & neither actually let you know whats its doing & yours is so awesome!Larry S.The charger charged the batteries as expected.Delivered a day early.Gladly order from them again.MGPlug in and forgetCouldn’t be easier to use! Pleased with purchase.UnknownGreat!Awesome charger!DYLAN HICKSChargerThese are great for chargingNathan BendenQuality productVery easy to setup and use, build quality is satisfactory, and the all the information you need is displayed.MichaelLots of featuresFor the same price as most chargers you get a lot of extra features.UnknownEasy as it getsYou have 2 bays and it accepts just about any size rechargeable battery. The charger sees what type of battery you insert and reacts accordingly. Only thing you have to do is make sure the polarity is the right way. It charges at .5 amps. My old one would charge one battery at a time at 1 amp so that’s the only reason I gave 4 stars. My old nitecore Intellicharger stopped working as the power cord receptacle seems to have worn out. Great charger though. Does it all.Bradley TurnerWorking well so farI’ve only had the charger for a short (less than a month) and it seems to be working great.MichaelMight be all you needI use this mostly to charge AA and AAA batteries. Never had a problem using it . There is also option to charge at 300 mA (both slots). when done the screen says ALL and won’t show capacity or time charged. Its simple and will probably last longer than meGreg BoothGood valueGood valueMichael HattenhauerAwesome chargerLove the display. Very nice charger.Julie HLove the chargersOrdered 2. Received one. Contacted company, and that was a little difficult but they did get back to me and send the second charger. Their phone number is on Facebook page. Chargers are really nice.George WorkmanGreat productJust as described. Works great! Cant be happier. Shipped very quickly.C.Good Chargerit’s very good, performs just fine. good price.William BrysonGreat battery chargerWorks as advertised, awesome charger, very quick shipping.Stanlee MouseExactly what I knew I’d get and I love it.I RATED THIS ACORDINGLY… I love the simple slow charge. The price is amazing because it is extremely thin lightweight plastic that if dropped from a bed to hard floor might explode in plastic pieces. So, you buy another at the price. I use a GeekVape Aegis 100W and it’s not charge friendly. The MICRO USB PORT IS COVERED BY WATERPROOFING RUBBER AND THE DOOR TO OPEN TAKES TWO SCREWS IN OTHER WORDS UPDATES AND EMERGENCY CHARGING ONLY. The Aegis mod has the single battery 100w, which also comes with the ability to use both 18650 (rubber ring adapter) /26650 so this charger is perfect!G. RyanWorks wellA good charger that does the job though I was hoping it would charge faster. Takes longer than other options but the price is right and I use it when I’m not in a rush. Just gets slightly warm but not hot and the display tells you charging progress. The indicator is pretty far off sometimes but doesn’t really matter as it doesn’t affect when it’s done charging. Great experience with this site, fast shipping and their price on this item is really good.Connor ManionCharges fast.Good, fast charger.ChrisNitecoreLoving this charger, much better than my previous oneRayPerfectBought this to charge my vapor batteries. works great. love being able to turn the charging light off as its in my bedroom. been using it nonstop to keep batteries full with no issues for aprox a month nowJoshNitecore D2I’m glad I got this one because it shows what charge level the battery is (to an extent) I don’t know how accurate it is but it should be close. This way I can charge up to a nominal voltage and store batteries.Parker PetersAmazing charger!Best charger I have ever used!Romeo YoukhanaNitecore D2 Digi ChargerLUV it…had the D4 @home, purchased this for my officeMandyBatteries and ChargerReceived everything rather quickly and works greatThomas18650 ChargerExcellent charger. Works great