Information with just having charger 24 hours.Both NEW A4’S Act in the ways described below.
ONLY advantage the new one has over original is it can charge 4 X 26650/21700.That is a good advantage but you have to be aware when to remove the battery because with a majority of batteries it will not stop charging or at least terminate.
Waited over an hour a few times Stuck at 99%/4.20V and never got to 100%/4.20v]. That is when animation STOPS. What I have found early on is after about 25/30 minutes of being stuck on 99%, pull out battery and it is usually done.
I like the Original A4 version better for these reasons:
-Does not overcharge batteries.
-Terminates voltage in a timely fashion[100%/4.20v display]. Does not get stuck on 99%/4.20v display for 40 minutes to over an hour!
-Charges faster or at least you know when they are done.
- Display is about 30 to 40% brighter
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New One OVER CHARGE results: Voltages taken immediately off of charger.
Molicel P42A-5 Weeks old-4.24V
Vapcell 26650 5500mAh-14 months old-4.24V-Did not terminate SEE TEST BELOW
Aspire 26650 4300mAh- 8 months old-4.23V
Did not over charge
Acebeam 18650 3100[VTC6 Re wraps] 2 months old.–4.19v
Keeeppower[sanyo cell] 18500 1700mAh-5 years old-4.18v
Molicel P26A - 20 months old-4.18v
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Not overly concerned about it over charging. My FENIX ARE-C2 did the same with about the same results and I had many of those batteries 3 or 4 years. The difference is the Fenix would terminate, this one does not unless maybe I should wait 70,80 minutes which I am not because that defeats the purpose of them charging faster.
I have to watch them now and stop charging after 30 minutes or so of 99%/4.20 display. That is a pain in the ass for several of the batteries that I tested so far.
Here is a test I just did.
Used the EXACT battery. Vapcell 26650 5500mAh-14 months old.Starting voltage was 3.82v. CHARGED AT 3 Amps.
New-took 1H 26 min. [terminated because stuck on 99% for 35 plus minutes]- 4.24V when removed/aborted before 100%/4.20V when animation STOPS.
Old Folomov A4-[Original]-Took 1 hour 0 minutes, terminated on its own-4.20V when done.
One thing I am going to do is wait no matter how long [been 65 minutes for longest wait] it takes for animation to STOP and display shows 100%/4020V. 
Bottom line is I just have to pay attention more when using the NEW ones. Not what I was expecting but it will all work out. 