125 Reviews
85% (106)
13% (16)
2% (2)
0% (0)
1% (1)
79% Recommend this product (99 of 125 responses)
By Richard
Muncie, IN
My go to charger
September 27, 2022
I’ve been using this for a few years now and recently bought another for a backup. I’ve charged many types of batteries without a problem.
By Joe
nitecore digicharger - smart battery charger A++++
February 14, 2022
Wish I had this charger years ago. it gives you up to date status on each battery in the charging bank. Very efficient and easy to read.
By Dan
Stockton CA
Nitecore Digicharger D4
January 11, 2022
After receiving a couple of these chargers about 3-weeks ago, I immediately tried them out with a big collection of the Eneloop AA and AAA batteries I utilize, and charged them to their full capacity as each individual battery should be. The chargers did a great job and I'm extremely happy with these devices. Highly recommend these Nitecore Digicharger D4 chargers.
By Michael
December 10, 2021
Great all in one charger. I have one thats a couple of years old and I use it to charge my Eneloops and 18650's. Excellent reliable charger!
By Spiller
NitecoreD4 charger
May 21, 2021
Cant say I like everyhtung about it, but it does what it says it will do. Took a few reads through the instructions to understand whats' what. But as far as charging your batteries and knowing the state of each battery it works well.
By William
Port Richey, Florida
Great charger for all my needs
March 6, 2021
I purchased this charger more than 6 years ago and have not regretted it a single day. I love using Li-ion rechargeables way beyond the nicads I used to use many years ago. I have progressed to using many different configurations of battery combinations. This charger has proved that it will handle all my needs from AAA, AA, 16340, 18650, and my old nicads from years ago. It actually does many more than that. A tip: since it sits horizontal, it will collect dust on the contacts. Once in a while, turn it up side down and brush out the battery area with a soft brush to knock out the dust that accumulates in the battery area. You can also use a Q-tip with alcohol to clean the battery contact surfaces from accumulated dust and debris. From my experience, all Pros and no Cons.
By Lawrence
NE Ohio
It charges batteries!
November 15, 2020
AS has been stated it does charge any number of different batteries. It doesn't care what number of what you put into it or the level of dis-charge. It tells you what it is doing and the levels of charge. It is affordable and for me I can relax knowing Battery Junction is going to ship it in one piece.
By Andrew C.
Blue River Oregon (Holiday Farm fire)
Awesome Charger!
September 22, 2020
The Nitecore D4-4 is just the best 4 slot charger period. It charges the most sizes and chemistries and is completely dummy proof. As well, If you feel the need to manage voltages and currents, it will allow you to do so also. It also can breathe new life into NO voltage Li-ions. Charges quickly and never got hot...( well, except for that one night. I just didn't have time to make a second run through the house and although it say's it is "Made from durable ABS plastic / fire retardant / flame resistant) " I'm betting it probably didn't survive. Totally on the must buy again list and brother, It's a long list now!
By John
Excellent smart charger
August 6, 2020
Very easy to use and relatively compact, well-made. Clearly indicates charging process and selects appropriate current for battery size and state of charge. Charges very quickly.
By Bucky
Worked well
July 29, 2020
This unit charged three batteries with individual progress scales very well. Seems pretty good. I realize it is not good for the battery to charge to quickly. I could not find the serial number for the warranty card. I like this unit.
By Chad
Jamestown, NC
Interesting Charger
March 20, 2020
The charger is a quality unit. The readout is a bit weird to interpret the charging status, though.
By Michael
Troy, MI
Great little charger.
March 5, 2020
Does a good job on all the different batteries I have. Good price as always from Battery Junction.
By Steve
Redding, CA
Easy to use. Versatile. Well Regarded.
March 5, 2020
This was my first charger purchase. I did some research by reading flashlight and battery related forums. This charger is easy to use and works well with our batteries. I have recommended this to our friends and family.
By Chris
December 22, 2019
Works as advertised. Very nice charger.
By Don
Bean Station Tennessee.
Talking about the Best Charger going
December 12, 2019
I have 2 of these, They are the best going, gets your batteries back in the running, This charger knows more about your batteries than you do. Refreshes them so they are like brand new, even if you have abused your batteries, it knows what to do, When you take them out of the charger, its like you just bought new batteries, You can't get a better charger.
By Tom
Nice charger
September 13, 2019
Great charger you can cycle through many different modes, from voltage mah, and time elapsed. User friendly with a nice big display.
March 18, 2019
Got this to charge up a couple of 10440 cells that would benefit from charging with a low voltage setting and the D4 has a super simple manual setting you can switch to. It worked perfectly. outputs are totally easy to understand instantly for my first charger. The 10440 batteries I ordered were protected, though, and didn't engage with my Ultratac K18 I got on Amazon. The batteries were perfect, but I think the flashlight may have needed unprotected cells. I tried to confirm with Ultratac's non-existent customer service (neat light though) and had no answer so I asked to return the Mecarmy 10440s and try the Efest unprotected 10440s. No problem to send back, no problem to get credited even though Battery Junction had no fault, no problem to get a future credit if the new cells also don't work for other products (try the Klarus Mi6 keychain light!). Timely email responses to me like my order mattered even though it was very modest. This company has their act together and deserves some Kudos.
By Dale
Nitecore li-ion D4 charger
January 18, 2019
Does great job would recommend.
By Gil
Milton, FL
A charger for everyone
January 18, 2019
Bought this to charge a Nitecore NL166 RCR123A / 16340 650mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack and 3 Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack and even though they are two different sizes it does them all at the same time. Like that it show where they are in there level of storage and that it shuts off when done with out over charging. I haven't bought a charger in 10 yrs and I'm not disappointed in this one.
By Todd
Aurora, CO
Best charger for the money
January 13, 2019
Have several different chargers, but this is my go to charger for my rechargeables. Alot of info on the display if you are into all of that, but I like the fact that it pretty much charges everything that I need to recharge and the price point is good. Can't go wrong with this charger.
Great Upgrade
December 27, 2018
I have had and used the nitecore i4 charger for years and decided I was ready to upgrade my charger. Great choice, I really enjoy the digital read out. Highly recommended.
By Dave
Ramstein Air Base
Great charger.
October 30, 2018
Nitecore design and function on this CHARGER is superb!.
By Eric
East Palo Alto , CA
Handles all of my battery sizes
October 19, 2018
I've had this charger for a few years and I've charged RCR123s 18550 18650 26650 all without issue. My only gripe is the long time it takes to charge. It maxes at 750mA current. I'm not sure if we couldn't charger at twice that, but for safety purposes I'm fine with the slower steady charge.
By Chris
Denver, Colorado
Easy to read display
April 14, 2018
Easy selection on individual battery read out, and shows how much is left. Accurate and simple usage.
By Maurice
El Paso, Tx
Very Good Charger
January 27, 2018
Charges all my batters, great quality and build. Cant say enough good things about this charger
ProsCapacity Charge Speed Display
By 3�‚½�‚¢
, N/W AR
High quality product.
January 23, 2018
Excellent quality and it does what it says it will do. Item came in a timely manner and Battery Junction kept me informed. I recomend this product & the company Battery Junction.
ProsAll good
ConsI have nothing negative to say about anything from Battery Junction or their products I have bought.
By Deacon B.
Killingworth ,CT
Works as intended.
January 16, 2018
Charged up a bunch of batteries after receiving my unit with no hiccups or problems. Does not get overly warm as some others mentioned. Batteries were 18650, RC 123's, and AA rechargeables. LED info was accurate and helpful.
ProsMultiple battery platforms, battery recognition, & ease of use (plug 'em in and let them charge).
By Raymond
Palm Coast, FL
Good Charger
December 23, 2017
Good charger that takes almost all batteries. Very safe charger that works well.
ConsCan be a little slow.
By Thomas
reading, PA
Awesome Charger
December 13, 2017
Quick and efficient can handle 1 to 4 batteries at a time.
By Randy
Cuero, Texas
Great charger
December 5, 2017
Charges various sizes of batteries accurately and in a timely manner. Able to keep my spare18650 batteries fully charged without problem as the charger senses optimum charge and automatically shuts down as each individual batter reaches full charge. Would highly recommend this charger.
ProsFully automatic & charges multiple sizes of batteries.
By Ed
Runs HOT!
November 9, 2017
The Nitecore along with the batteries being charged runs hot to the touch. I have a La Crosse charger that runs warm to the touch. How long will the Nitcore last since it runs hot?
ProsGreat LCD screen as it gives a visual on the charging status. My La Crosse charger doesn't have the fancy LCD screen.
ConsThe Nitecore runs hot.
By Bill
August 22, 2017
I have several different size li batteries and using all the different size and types of chargers. This one does it all, very professionally made,and charges the batteries quickly, and the controls and display window is a much welcome touch.
Proseasy to use
By chuck
Has an indicator for each individual battery
August 16, 2017
works exactly as advertised
Proscharges multiple types of batteries at the same time
By Micky
Nashville, Tn
A Must Own Recharger!
July 27, 2017
Finally a charger that can recharge all types of rechargeable batteries. Quality built! Rapid charging! Minimal to no heat! Clearly tells you which batteries you attempt to charge are bad, preventing you from wasting time and and therefore money attempting to recharge.
By Dave
Nitecore D4
March 17, 2017
The way chargers should all be operated. Great display and info for each battery charging.
By Keith
Great charger. Did exactly what I expected.
March 17, 2017
I tested the charger on multiple types and sizes of batteries. It worked great
ProsHolds 4 of varying sizes. Gives clear indication of battery type and charge information
By Steve
So far so good!
March 15, 2017
Unit arrived quickly and well packed; after unpacking, I plugged the unit in and promptly charged a set of RCR123A batteries without issue.
ProsVisible charging status and the ability to charge multiple battery types.
ConsNone so far
By Ronald
Regina, SK
Good Charger
January 26, 2017
Decent charger and have bought 6. They display information about the charging of the batteries that you need to make sure the battery has good life. Good charger but service with nitecore is another issue. Beware of service issues directly with nitecore. They want to sell you their product but not really interested in servicing it in a timely matter. It took 2 months to send have them repair it and send it back.
ProsGood Charger
ConsPoor manufacture service
By mbell556
eastern NC
Confidence when recharging
January 25, 2017
The digital readout gives you confidence in knowing the status of your bartteries as they charge.
Proseasy to use, versatile
By AirThunder
Brandywine, MD
Works great money well spent!
January 24, 2017
Charges very quickly, smart display layout. Easy to use charger.
By Lew
Oxford, GA
Great Charger
January 20, 2017
Works perfectly and is exactly what I was looking for. A charger which would charge most batteries, work on 12V card, normal home power, and solar. Service was excellent.
By George
Sturbridge, MA
Works great on every type of battery
January 11, 2017
I have tried this charger with every type and size of battery and it works great. It may take a while to charge when fully loaded but that is to be expected. The display is good and very informative.
ProsDisplay, can be powered by ac or dc sources.
Conswish it showed how many mah it put into the battery.
By Dennis O.
December 16, 2016
Loved the one I had so I bought two more - one for my daughter and one for my granddaughter so they can break the alkaline habit:)
ProsCapacity, quick charging and very informative display
By The B.
Orlando Florida USA
Just really easy to use and work automatically
December 8, 2016
I had the 2 cell version of this unit but needed to charge 4 AA's at a time. So UPGRADE and this rig really did the trick it was able to recognize all the AA batteries that I put to it all the 1600mA 2500mA and others worked perfectly. Also I have a few of these 26650, 22650, 18650 no problem auto identified and charged with no problem at all. I cannot say any thing more just GREAT !!!
ProsEasy to use right out of the box.
ConsWill not do D cell (but that is not a big problem)
By Steve
Awesome Charger
November 30, 2016
Can't believe I waited so long before purchasing this charger! The D4's digital display and auto sensing of battery types and charge levels is exactly what I was looking for. Perfect size, great display, capable of charging multiple battery types at once. Extremely pleased with the purchase.
Pros- Digital display - Auto sensing cell charge/battery type - Very portable - Charge different battery types at once
Cons- Only comes with a single power cord, but has connector slot for other options. Would be nice if Nitecore included both.
You'll be happy!
November 17, 2016
Good product ... solid and reliable. A bit slower charging than I had anticipated, but still happy with it. Instructions on use could be clearer, and more specific on exactly what the read-out is telling the operator, but after the first use, it becomes clear.
ProsCompact and relatively low heat charging ... so far, very reliable.
ConsUser instructions could be more specific, especially on use of control button and display information during charging.
By Dan G.
Nitecore Digicharger
October 28, 2016
Great charger!
By Michael
Hampton, VA
Nitecore D4
October 26, 2016
Great charger at a good price.
By jim
Socorro, NM
Nitecore charger helped
September 20, 2016
the Nitecore Digcharger D4 charges different size batteries I used it for AAA and AAs I like to see the level of charging it did on the screen read out, Others I have used left you wondering what voltage was in the battery
By Stan
Tallahassee, FL
Love this charger!
September 20, 2016
No problems with this charger and flexible charging of different battery types.

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