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  • 02/11/2014

    This charger is good on some overall specifications options. The two main advantages are: 1 - Charge simultaneously different batteries types and sizes. 2 - Charge batteries through AC current or 12V car battery. 3 - The LCD has good readability with big numbers. However there are some negative points that you must know and consider: 1 - This charger incredibly has no ventilation holes at all, neither at least a single one. Because of this, it gets a little bit hot, when charging 4 batteries at same time causing some smell of melted plastic. 2 - The maximum charge power is only 750mah, and that if it you only charge 2 batteries at a time. If you charge 3 or 4 batteries the situation becomes worse, charging at only a maximum of 350mah per battery. 3 - The springs have no sufficient tension to provide an effective secure contact. Batteries can easily lose contact and jump out. 4 - the rubber mounts which are below the charger jumps out when the box is hot and does not have sufficient height to provide at least some ventilation through the charger underside. 5 - The only button that the charger has, becomes slack and loosen over the time. 6 - This charger has no "Battery refresh mode", which provides discharging and recharging batteries cycles, in order to revive them. In other words you can't discharge batteries through this charger. 7- The screen LCD doesn't show how much total final charge in milliamperes the batteries have been charged. Hope the above provided info has been helpful to you.

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  • 18/09/2014

    I already had the Nitecore I4 and since I needed a second charger, I bought the new Nitecore D4. This is slightly bigger compared to the “old” (I bought it only last May) model and nearly identical with it, except of the large display. The info displayed (charging current, charging time and voltage) is surely useful. Despite what I’ve read on the internet, the display is clear enough and discreetly bright. I got it yesterday and I charged a pair of Panasonic NCR 18650B 3400mAh batteries. Their voltage went from 3.3V to 4.2V in 4.5 hours with a charging current of 750mA. During the charging, neither the batteries, nor the charger got hot. If you need a battery charger, this is the one you have to buy.

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  • 03/07/2014

    отличная вещь! всем рекомендую! греется в меру! заряжает лифепо. удобная просто зарядное,без заморочек! приехало за 12 дней,на удивление))) упаковано не очень было,помялись углы,но с зарядками все нормально. покупал 2шт.

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  • 26/10/2017

    This is really good universal charger that will cover most of your needs. It can charge different type battery on each slot which is also really nice. Overall quality is excellent, like with all NITECORE products: http://bit.ly/NITEC0RE

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  • 11/03/2016

    I bought this charger from Banggood because there are many counterfeit clones of it in circulation and I wanted a trustworthy source. The charger that got delivered was originally boxed, had a valid authentication code sticker from Nitecore on it, and is of very high quality. Since I ordered the EU version, they not only shipped some european power cable, but actually the entire charger was the D4EU model with the corresponding certifications, and the included power cable was a Nitecore branded EU cable. It's an excellent charger for both NiMH and Li-Ion batteries of various sizes. It doesn't provide capacity statistics and doesn't offer discharging or analysis, but it charges reliably and precisely. Thanks to the built-in power supply it also saves you from the major cabling mess that some other brands have

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  • 31/12/2015

    just got my shipment, took some time but totally understandable because of distance for delivery. arrived in great condition, check for authenticity and it is authentic, works great!!

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  • 01/07/2014

    This charger is very good charged a number of different types of battery in charger including AAA nicad all charged without any issues has digital display which provides lots of information on the charging rates etc, supplied with UK plug.This charger work for any type of round rechargeable battery.Also arrived within 10 days.

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  • 11/10/2017

    Интересная зарядное устройство, однако без возможности тестирования и восстановления аккумуляторов. Между тем поднял аккумулятор RCR123 c, практически, 0.7 вольта. Сначала, где-то до 1.5 вольт, он заряжал его в режиме Ni-MH в режиме -dv/dt, а затем уже в режимах CC и CV, как Li-Ion аккумулятор. Приятный бонус - дорожный адаптер.

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  • 04/04/2019

    Két napja használom, teljesen elégedett vagyok. Pozitívum: - nagy kijelző, így látom a töltöttségi állapotot negítívum: az AAA típusú elemeknek nincs kialakítva egy olyan bölcső (mélyedés), amibe stabilan el lehetne helyezni, így egy kicsit trükközni kell, hogy a két érzékelő közé szorítva ténylegesen elinduljon a töltés. Ezt leszámítva semmilyen más negatívumot nem tudok felhozni.

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  • 07/09/2017

    The charge voltage is too high, but this is not as critical with LiFePO4 as with ordinary LiIon batteries. The charge is a CC/CV charge with termination at about 50mA and no trickle charge. The voltage is no accident, the charger is marked 3.7 volt for LiFePO4 charge. When using the DC input the charger needs slightly above 0.8A. Notice the temperature is about the same with DC supply as with mains supply, i.e. the build in mains supply do not generate much heat.

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