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Better than I expected. High quality plastics. BUY
Posted by fran82 on 05-06-2010
Involvement: General (knows how to use it) - Ownership: 1 day to 1 week
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Pros:When it arrived I said: "voila!!!".Pretty package: transparent bag with "buttons" to open and close it. Very nice!It has HIGH quality plastics, it smells very good, no flaws in desing, no flaws in manufacturing. Fits 10440, RCR123A, 16340, 14500, 17500, 18500, 18650, 18670 even 26670 batteries. (more sizes too, but only Li-ion chemistry)Two independent channels which stops charging at 4.20 volts exactly (almost in my unit).The springs are soft, very easy no insert and extract batteries, even with only one hand.Time to charge 2200Mah 18650 Battery, from full flat to full charged: 5 hours. (there are slower and faster ones, but it is very good)For its price, I doubt you can get something better.You can use with 110-220 volt AC and even with 12 volt DC.Charging current is between 400 and 600mA. Not too high, not too low.
Cons:- Connection cord in US format. Adaptor required for European users- No 12 volt car adapter included.- Is a little bit big, but is aceptable.- Cells for more than 4000mAh could be slow to chargeNo more cons
Other Thoughts:If the 12v power cord/adaptor were included it would be one of the best chargers at DTWAlso, the manufacturer could include US to EURO adaptor plug.DTW could insert the charger in some bubble bag, because the mine arrived "as is" inside the yellow envelope that DTW uses in all its purchases...
Bottomline:If you are searching for a charger that can charge almost all li-ion cylindrical cells, that stops charging at 4,20 exact volts, and that have multiple power inputs (110-240 and 12v DC) buy it.100% recommended

perfectly charge 10440 & 14500
Posted by scalex on 03-21-2009
Involvement: Expert (understands the inner workings) - Ownership: 1 week to 1 month
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Pros:I received it few weeks ago, and today (22.03.2009) I tested. It seems that has been fixed over-charging problem with the right slot. not necessary to add 2 x 4V3 zener diodes to limit charging over 4.2V! Now is working by default!1st: 2 x 10440 Li-Ion accu partially charged (at 3.7 and 3.8V). I measured charging current and is 27-30mA on booth slots. When charging leds are RED. After 1.5H, booth leds become GREEN. I measured voltage and booth 10440! Now, have 4.2V! Super ok!2nd: 2 x 14500 Li-Ion accu partially charged (at 3.7V booth). I measured charging current and is 65-68mA on booth slots. When charging leds are RED. After 3H, booth leds become GREEN. I measured again voltage and booth we have 4.2V! Super ok!
Cons:Not really a cons. I observed that metal spangles which holds battery are to flexible. In some circumstances may be ok, but in general, not! They should be a little sturdy/rigid! When you are inserting cells, spangles can be deformed!
Other Thoughts:They rated it at 500mA. It isn't. In my case is not a cons. I ordered for my 10440 unprotected cells. It should be charged at lower rates (less than 200mA), so 30mA is ideal. No matter that the charging time will be longer. This lower current is ideal!
Bottomline:Buy it! Now, is ok!

A bit uneaven
Posted by rdodger on 08-05-2008
Involvement: General (knows how to use it) - Ownership: 1 day to 1 week
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Pros:This charger has a sturdy stucture & charges batteries in about 4 hours round trip from battery shut off to charger shut off in the left hand slot.It cuts off on the dot of 4.08v
Cons:The right hand slot seems to keep charging batteries even after the other channel indicates the same battery was charged. however even after another 2 hours of charge it still only gets 4.11 however the red led is still showing as charging.
Other Thoughts:This charger needs some more regulating before the manufactures claims can be considered to have been honered.as it is this charger does not render me without enough worry to charge li-ion batteries for anything that uses more than 1 at a time as they aren't fully ballanced.nor am i sure of the right hand slot yet.
Bottomline:well useable but needs looking at by the maker to render the claims they make about it truthful

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