• UNIVERSAL CHARGER: It can charge simultaneously rechargeable batteries of different specifications (18650, 26650, 26500, 22650, 18490, 17670, 17500, 17355, 16340, 14500, 10440, A, AA, AAA, SC sizes. only charge 2 26650 batteries at a time as the size of 26650 is a little bigger.) - Note: Only charge for rechargeable batteries.
  • LCD DISPLAY: Provided with integrated LCD display to monitor the information of the four charging slots. Each battery parameter such as voltage (V), current (mA), time (h), capacity (mAh), internal resistance (mR) can be viewed independently by pressing the corresponding digital key.
  • POWER BANK: Zanflare C4 battery charger comes with 5V / 2A USB output function and can be used as a power bank. If you install 2 or more 18650 batteries, the output current can reach 5V 2A, if you only install one 18650 battery, the output will be 5V, 1A (USB output function will be enabled only if you cut off the power and insert the battery; this does not apply to Ni-MH batteries.
  • MULTI CHARGE OPTION: 4 different charge current options to choose from (300mA / 500mA / 700mA / 1000mA). 4 slots work independently, you can select and use the three modes 'CHARGE, FAST TEST and NOR TEST' simultaneously.
  • WHAT YOU GET: Zanflare C4 Smart Battery Charger, Power Adapter, Car Adapter, English Instruction Manual with 2 years warranty,100% satisfaction and zero hassle returns guaranteed.

This is the best charger I have ever used. It charges so many types of Lithium batteries. It has so many great features.4 different charging currents, battery quick test, normal (more vigorous) battery test. With the 4 slots capable of charging different type batteries at different currents simultaneously, it is awesome for my needs. I love the LCD display's information. It shows real time battery voltage, the battery's amp hour capacity is when it is completed charging, the internal resistance of each battery (all very helpful when building your own battery packs), and it does this for each battery independently. This means no more charging while measuring current with a meter and time with a stopwatch or calculating internal resistance to match cells. So many other multi-slot chargers charge until one battery is charged and stops all charging or cooks the other batteries. Not this one. When a battery finishes it says end and charging for just that battery stops. It also works as a USB power bank. It is large for this purpose, but in a pinch it works great. This charger is absolutely amazing!!

The features have been stated clearly in the product description and it worked as described so that I’m not gonna repeat that. Here I’d like to talk about something that can not be found in the description. [Operations] It’s a little bit tricky. If you want to apply the same settings to all the battery slots, you can insert the batteries into the slots before powering up the charger. When you change the mode or current, it will affect all the slots. On the other hand, if you want to set it up individually, you can power up the charger, install a battery, set it up, and wait till the setting is confirmed before inserting next battery. If you want to change something after the setting is confirmed, you need to long press the slot button until the battery icon starts blinking, and then change the settings. [Discharge Capacity Measurement] The result is not very accurate. Measured Discharge Capacity x 0.94 = ~Real Capacity, according to my test. Say, if the measured capacity is 1800mAh, the real capacity should be 1800x0.94=~1692mAh. [USB Port] Works like a power bank. It’s able to output up to 2.24A current even with only one Li-ion battery is inserted. Installing more batteries will reduce voltage drop and get higher capacity. Can charge my tablet at ~4.90V/1.41A but my iPad only at ~4.94V/0.97A because doesn’t support apple 2.1A fast charge. Overall, it’s a very powerful battery charger which supports 2A usb output and discharge capacity measurement although the measured capacity seems to be higher than the real capacity. It’s hard to find a competitor in this price range if it would also support 3.85V Li-ion and 3.2V LiFePO4 battery cells.

Pro: Very nice quality charger / analyzer. The 3 different operation modes are very nice. Many analyzers do not offer a fast test mode (refresh) in addition to the standard capacity test of charge/discharge/recharge. The ability to select 4 charge currents starting at a low 300mA is very nice feature for small cells. Termination is excellent. The 4 slots have high quality sliders, smooth and strong. Some of the best I have used. Separate power adapter keeps charger cooler than models with internal transformer. Included car adapter is a nice touch, more chargers should come with one included. Con: There are only two cons and the first is not a deal breaker, more of a minor annoyance. The quality of the LCD screen is not the best, can be seen clearly at most angles but many screens on other chargers are better. The LCD screens are small. Hard to read as some of the text - END, charge mode, etc; tiny and hard to see. The second con could be very important for some people, but not all. This charger cannot fit cells as large as 21700. Although this is a very nice charger it needs an update for the size of the slots to accommodate longer cells. Conclusion: This has become one of my favorite chargers / analyzers, I would put it in my top 3. For the price the quality of and the features you get with this charger make it an excellent value. It will work for most people, however a serious Vaper or a Flashaholic that routinely needs to charge 21700 cells might want a different model.

Works great. I like that it tells you how many mAh was put into the battery when done charging. It's a true smart charger that charges each battery individually and you can set different charging parameters for each battery independently. Love that feature. So if you want to charge one battery at 1 amp and another at 500 mA and another at 700 mA, you can do all that. Not only that but you can charge a 18650 li-ion battery in one slot and a small AA battery in another slot and any other different battery in any other slot and it'll automatically detect what battery it is and charge it correctly at the right voltage. So if you had a 18650 battery charging next to a AA battery, the 18650 battery will stop at 4.2 volts and the AA battery will stop at like say 1.44 volts like it should. Anyways great charger go buy one.

I have been having a lot of issues with an assortment of 18650 battery brands. These batteries as a rule are not cheap. It occurred to me I might try a better battery charger. Bought this jewel, dug out most of my 18650's and started charging them. I hate reading directions so I called my son the master electrician over to explain the functions or even better... just tell me if the batteries were bad or good. After he read the directions, he found all the batteries were good and taking a charge. I believe this charger saved me a lot of money. Now I have to buy more flashlight to be able to justify having so many batteries. Life is wonderful.

I am very impressed with the Zanflare battery charger. I am an Electronic/Electrical Engineer graduate of the University of Missouri at Rolla and have experience testing batteries for the U. S. Navy. This charger is perfect for home use and properly tests and recharges several types batteries automatically. Several chargers for home use over charge batteries causing damage by excessive heat. Other brands disregard how much charge is left in a battery before they start charging. The Zanflare model C4 discharges each battery independently before charging; other chargers connect batteries in series to recharge without considering how much capacity is left in each battery, resulting in over charging/over heating and damage to the battery. I AM IMPRESSED WITH THE ZANFLARE C4 CHARGER. I receive no compensation for this review.

What can I say about the Zanflare C4 Smart Charger / Analyzer? I had mediocre hopes for the C4, assuming it wouldn't live up to its featured hype. But I am happy to say that it has thus far exceeded my expectations. I have lots of NiMh and LiIon batteries. LOTS, over 300. I also have 5 different smart chargers, and a slew of others. So my perspective comes from a comparison of things I already possess and use. My favorite Smart Charger / Analyzer up to this point was the Opus BT-C3400. So most of my perspective is related to that one. The ease of use and setting individual slot configurations is even nicer than the C3400. Additionally, like the C3400 you can set / reset the configuration of each individual slot "on-the-fly" with immediate response. The only feature the C4 doesn't have where the C3400 does is an automated REFRESH mode. Instead, you either manually use the Fast Test (discharge / charge [measure mAh on charge cycle]) or Normal Test (charge / discharge / charge [measure mAh on discharge cycle]) and simply do it manually 3 times to get the same process the Opus performs with its Discharge Refresh program. Sometimes it might be a hassle, other times it is nice to check the value between each cycle to see what kind of results you get at each point. What I've found is that when I need to refresh some old batteries, or ones that have not been used in awhile, where they seem to have lost some of their capacity, I can use the C3400 refresh and then "set it and forget it" until it is done. On the other hand, when I purchase new batteries, I find that if I use the C4 Fast Test manually, I might not need to do a full 3 cycle test to break them in. If the capacity is within 10% of the battery's rating, I then do the Normal test which provides the capacity from the "discharge" perspective (more accurate in my opinion), record my info and move on to the next set of batteries. The C4's display uses a white on blue background so is slightly less appealing than the C3400's LCD display, but is by no means difficult to read. In fact the C4 has a "virtual" battery that is always visible for each slot giving a nice and easy visual status without having to try and "read" something and without having to cycle through the "modes". Though you can cycle the modes just like the C3400 to indicate Voltage, mA charge rate, mAh capacity rate, Internal Resistance, etc. But that visual battery indicating a visual status is also always there, so you know "visually" about how close it is to being done with the discharge or charge state. Effect: I can look at it from across the room and just "know". The C4 appears to have good ventilation much like the C3400. It is a couple inches longer than the C3400, but it really doesn't require much more desk space as in either case you would want to have a bit of ventilation room anyway. I've used the unit on the major battery types (AAA, AA, 14500, 18650, 26650) and used the various current settings (even up to 1A * 4 slots) and the unit itself doesn't over heat or get any warmer than any other charger I own. So the "physical" characteristics are pretty similar. The exception is probably in the slots themselves. Rather than have a multi-tiered slot design like the C3400 has, they chose to simply make the slot "half circle" diameter the size needed for its largest battery support. This tends to make the smaller (AA, AAA) batteries "rock and roll" a bit when trying to place them. It takes more effort in other words. Not a lot more, but enough to certainly realize that it does. The C3400's two tiered system favors AA batteries for the smaller tier as they fit *almost* snug in that bottom tier. The wider batteries fit into the 2nd (upper) tier pretty nicely. So the C4 is not quite as nice as the C3400 in that respect. Additionally, the metal sliders are a little "bendy" (read as weak) so you may have to occasionally bend them to a straight vertical position for proper contact with the negative pole on the battery. Not a major problem, but something they should look at fixing in the future. So that I don't write a novel, I'll simply summarize here with possibly adding comments in the future as they become necessary: The Zanflare C4, much like the Opus BT-C3400, appears to be a solid Smart Charger / Analyzer and performs well. Could there be improvements? Maybe. But nothing major here is needed. I'm thoroughly pleased so far with the Zanflare C4, and the fact it is less expensive than my C3400 is simply icing on the cake.

So far, this charger does everything it says and more. I have charged and tested a variety of Li-ion and NiMH batteries in a variety of sizes. USB output works well for charging my phone and camera. I've had a pair of these chargers for about a month and I've run dozens of batteries through each of them. NiMH C cells fit and work fine. If you get a little creative with thick foil and tape or with alligator clips and magnets, it will even work with NiMH D cells. The taller positive terminal contact on some other chargers will fit D cells, but this charger doesn't claim to support D cells and I won't hold that against it. I really like the higher charging current for multiple batteries, the testing abilities, and the clear screen feedback compared to the NiteCore New i4, which was my previous charger. During Li-ion normal/discharge testing, the lowest voltage I observed on the screen was 2.78V before it switched back to charge mode. Higher charge and discharge currents would always be nice, but these seem to be good for the money.

The Zanflare C4 is Zanflare's entry into the Battery Charger market. The C4 is a 4 bay multi-functional smart charger which can charge and analyze NiMH, NiCd and Li-Ion batteries. The C4 is great for anyone looking to upgrade from their non-analyzing chargers. User Interface and Modes Each slot can operate completely independently (for example, slot 1 can be set to charge, slot 2 can be set to Fast Test and slot 3 can be set to Normal Test). In order to set different modes for each slot, you have to insert each battery one-at-a-time, set the mode and then wait a few seconds before inserting the next battery. Each slot can also have separate a current setting. The mode and current is set within 10 seconds of a battery being inserted. Operation: * When battery is inserted, press MODE within 10 seconds to rotate through the modes (Charge, Fast Test and Normal Test). * When battery is inserted, press CURRENT within 10 seconds to rotate through the current options (300/500/700/1000mA for Charge and 300/500mA for Test). 500mA is default. * Once charging/analysis has started, press the individual buttons (1, 2, 3 and 4) to rotate through the display for each slot. Modes: * CHARGE - Basic battery charge mode (300/500/700/1000mA) * FAST TEST - Discharge then re-charge and measure capacity (300/500mA) * NORMAL TEST - Charge, discharge than re-charge and measure capacity (300/500mA) Display: Each also has it's own individual display and can display: * mA - Charge/Discharge Current (Shows the setting, it does not fluctuate in real-time) * V - Voltage * mAh - Cumulative charge * mR - Internal Resistance * Time - Cumulative charge/analysis time Summary and Conclusion The C4 is a nice analyzing charger both in terms of function and appearance. It supports up to 4 18650s simultaneously and can charge up to 2 26650s simultaneously (non-adjacent slots). It can also support charging NiMH and NiCd so this makes it a good universal/family charger. It can also fit protected cells up to about 72mm in length although longer and wider cells like GAs feel cramped and tight. It does not support LiFePo or C/D cells. I like the charge and discharge current options (300/500/700/1000mA for Charge and 300/500mA for Test). I know that some people prefer chargers that can support more than 2A+ for charging or 1A for discharging. However, I prefer charging/discharging my cells at lower speeds for better longevity and less heat. I normally charge my 18650s at 500mA regardless of charger used. The 300mA charging option is also great for people charging smaller cells like 14500s. The charger has good size and ventilation and does not need a built-in fan. When charging 4 cells at 500mA, the charger gets warm. When charging 4 cells at 1A, the charger gets very warm (but not overly hot). If someone wanted to add cooling for heavy use, you could set this until on top of a cheap laptop fan since there are a lot of vents on the bottom. I like the display options and the ability to view actual voltage on top of accumulated charge. I also like that there is individual information for each cell so that I can monitor voltage for all 4 cells at the same time. However, I would prefer if the unit/interface was not "upside down" (design preference). I like that the unit is powered with a proper wall/car plug and not USB-powered. The sliders move well (not too stiff or too sloppy). The power bank functionality works well and charges my phone pretty quickly even on one cell (1A charge). Using cells as a power bank is also a good way to discharge cells (either for storage or testing) without "wasting" energy. My unit terminates charge around 4.16V and the voltage accuracy is within 0.3V when removing cells and measuring them with a voltmeter. Packaging and Contents 1 x Battery Charger 1 x Power Adapter 1 x Car Charger 1 x Manual I highly recommend buying this charger for all your needs!!

Tested about 30 batteries so far, all has run well without any problems. The capacity test reads a bit on the "optimistic" side (between 7-8% higher than actual) and this was mentioned on BLF where it was tested and scored well. This charger also runs FOUR batteries at a time when checking capacity. Some chargers only run one cell at a time- so check on that (if like me) you check every battery that you buy for capacity the day you get it. The IR measurement on most of these budget chargers should be taken with a grain of salt too. It is useful, and this charger's IR results give you good general info for comparing a set of batteries. But a warm battery (and a warmed up charger) can swing that number quite a bit (lower). But with some time and experience with this charger, one can find it very useful for most battery testing duties. You'd have to spend over twice as much to get fast charging (which shortens battery life- so not for me), and very few extra features most people don't need. So given price and performance a solid 5 star product.