The current ALL-44 stock is the newest revision with the white display as of August, 2017.
This charger is what you get if you take an ALL-88 and cut it in half! Tons of versatility---smaller size. This charger can do it all---4.2v lithium-ion, NiMH, LiFePo4, and even 4.3v/4.35v lithium-ion---all with individual slot control (each slot is like its own charger). This may be the only charger you'll ever need!
The adjustable charge rates allow you to charge everything from the smallest cells like 10440 and 16340 all the way up to the biggest 26650s with safety and speed. Speaking of speed, this charger can output 4x 1A! That's right, you can charge eight cells at the same time at full power!
The large charge bays means that this can charge up to 4x 26650s concurrently--something that most 4x or more chargers can't do due to the larger diameter cells (most 4x bay chargers can only fit 2x26650). This charger works with cells up to 72mm long, accomodating even the longest protected cells and 26700s, with a positive pole connector that works with both flat top and button top cells.
When you read HKJ's review over at BLF you will see that this is a great charger. Here the conclusion from his review:
In automatic mode the charger works like any other good charger and will charge 4.2V LiIon and NiMH cells with a default current of 1A (A press on a button will change the current). Switching to manual mode the charger can charge most round cells on the market, at the cost of some more button presses.
I do not like the slot extension, I doubt I can find them when I need them. A longer bar on the plus side would have been much better (This is only relevant if you need to charger 32xxx cells).
I will rated this charger as a very good charger, especially if you have many different types of cells."
Because this charger offers so many different termination voltages, it is important that you read the manual and understand how to set the termination voltage for your batteries before using the charger.
What Cells Work?