Review on 🔋 Speedy Universal LCD Display Battery Charger with Car Adapter - Zanflare C4 Smart Charger for Rechargeable Batteries Ni-MH, Ni-Cd, A, AA, AAA, SC, Li-ion 18650, 26650, 26500, 22650, 18490, 17670, 17500, 17355 by William Whisperer

I've been looking for a proper battery charger for a long time. I used a Tenergy universal 4-bay charger that only worked with Nicad and NiMH batteries. It worked but took forever (overnight) to charge the batteries. I discovered these 'smart' chargers that can do anything and control batteries like my LiPo charger and charge all chemical batteries (including LiFe) and looked at a few of them and found that they do what you need them to do get, are not expensive. . I've looked at Opus BT-C3100, Nitecore SC4, Miboxer C4 and C4-12, Nitecore D4 and this Zanflare C4. I didn't want to spend $50 on Miboxer and Nitecore SC4, D4 didn't have fast charge, C4 didn't have 1 amp charge mode and I couldn't find Opus for less than $45 without waiting a month or more for it that it comes from China. So I got that. $32 delivered to my door in one day. Wonderful. Ordered at my door Wednesday morning when I got home from work Thursday evening. Good. So I like this charger. I'm a fan of electronics and gadgets so all the features are amazing. You get all the standard safety measures like over-voltage, under-voltage, over-charge, over-discharge, reverse polarity protection, etc. I have a charger, a wall adapter/power bank and a 12V car charger adapter. This is a 12V 1.5A adapter with a non-standard connector, so finding a replacement will be difficult. On the back there is a 12V input and a 5V USB port for connecting a USB cable to charge things (phone, tablet, etc.). It is said to be rated for current up to 2A. There are 4 slots or slots and this charger will take any cylindrical battery type: Nicads, NiMH, Li-ion batteries of any size imaginable, from tiny to large 26650. The downside is the lack of LiFe chemistry and you can only use two of these 26650 cells at the same time and only in compartments 1 and 4. Otherwise 4 18650 are quite suitable. In terms of features, there's this display right at the front. It has a really nice dark blue backlight and shows a battery icon with horizontal bars showing the charge level. Below are battery statistics, mode settings and values. Good. The only thing that bothers me is tiny text and terrible angles. At 50 degrees it is completely washed off. I like that the backlight is always on. It's dimmed until you touch the button, then it goes to full brightness. There are 6 physical buttons with mode and power on the front and one for each slot which you use to scroll through the stats and select slots for the current setting. It has 3 modes: loading, normal test (I think they mean normal) and a quick test. The usual test charges the battery, discharges it, then charges it again and displays the estimated capacity. This can take a long time with large capacity cells. The quick test only performs a charge-discharge cycle. The charging mode offers you 4 current settings available in all 4 bays at the same time: 300 mAh, 500 mAh, 700 mAh and 1000 mAh. There are 4 display functions that are also shown during charging: volts (real time), charging time (hh:mm - not seconds), accumulated capacity in mAh, current setting (not real time) and mΩ or internal resistance in milliohms. . It measures the internal resistance of the cell. This is very helpful in finding out how healthy your batteries are. A high internal resistance indicates that the battery is worn out or of poor quality, but it is best to carry out charge-discharge cycle tests. Discharge currents 300 and 500 mAh. How it works? Really good! I have charged several high capacity NiMH, NiCad and AA, AAA 18650 Li-Ion batteries that I had lying around and this will be their main job. The charger looks high quality and robust. The slots have metal sliders that hold the batteries in place, and they move in metal slots rather than plastic slots, and the springs are strong, which is important for getting good voltage, amperage, and resistance readings. The keys also feel good and firm. Operation is easy. Plug in your charger. Insert the battery and the battery icon will flash on the display and the current will show as 500mAh which is the default value. The charger automatically detects the battery type but doesn't display it like some other chargers in its class, which can be handy for a cryptic battery without labeling. Press the power button to switch between the current settings and use the mode button to switch between modes. This gives you some time to select the power and mode before it snaps into place. However, you can change the current setting by holding down the slot button and pressing the current button. I particularly liked the fact that you don't have to remove the battery to change it. You have to take it out to change the mode. By pressing the slot button you can switch between information, voltage, current, stored charge and resistance. I like how quickly the batteries charge. The old charger would have lasted all night. This took 1.5 hours for a really high capacity AA and AAA at 700mA for AA and 500mA for AAA. At the 700mA setting, the AAs got a bit warm, so I wouldn't recommend this current setting for batteries below 2100mah. I did a routine test with a couple of old AAA nickel cadmium batteries and a couple of recycled 18650 batteries and found the results matched my lipo charger. It takes a long time (6 hours) but really shows how healthy your batteries are. NiCd and NiMH are charged to a final voltage of about 1.45, lithium cells to 4.20. I checked them with my multimeter and the t NiMH was between 1.4 and 1.5 and the Li-Ion reading was 4.17 which is well within specification for such a charger. I tried to revive a dead lithium ion cell and it worked for me. You can use the charger as a "power bank" but NOT when it's plugged in. You can only use it if it contains batteries and requires at least 2 Li-ion cells to get the 2A rating. Pros: Durable and well made Easy to use Handles all cylindrical batteries and chemicals Shows important battery information Ability to measure resistance 4 charge currents up to 1A for all slots Independently controllable slots Display backlight stays on all the time and dims when idle Provides recover dead batteries 2A USB port Comes with car charger Cons: No discharge mode Display has poor viewing angles No support for LiFe PO4 cells This is an amazing $30 charger with all its features. You'll pay an additional $15 to get Opus and over $20 to get a Miboxer C4-12 or Nitecore SC4 with pretty much the same features (minus the discharge mode). Excellent purchase. Highly recommended if you charge a lot of batteries.