Hi Vaping Underground members, In this review i take a look at the D4 charger from Xtar. The D4 charger was supplied for the purpose of this review by Herman from Xtar.
http://www.xtar.cc/products_detail/productId=201.html
Introduction
The D4 is a 4 slot quick charger and is one of the AC range of chargers. It is an uncomplicated 4 slot charger from Xtar with LED strip progress indication (Xtar refer to it as Owl-Like UI Design). Supporting 2A charging for up to 2 slots and i found that using all 4 slots was charging at 1A speed, it certainly improved my own personal experience of charging my batteries. If you are well up on your technology this review might not be for you as it's a simple how a vaper who needs to constantly charge batteries found this product and nothing else. I don't have equipment to give data and charts but did consider including data i found on the internet but as i would be giving technical information that wasn't my own and don't fully understand i decided to not do that and only include some terminating Voltage's after charging so this is not a review full of Science just i did A and experienced B.
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In the Box
Contents:
D4 Charger
Power Cord
Manual
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Opening the Box
The D4 comes professionally packaged with outer cardboard box and strong inner plastic holder which feeds through the top of the box to allow for hanging for retail display purposes. The charger arrived in excellent condition and is a strong sturdily made product no complaints at this point whatsoever. The Specs and Features of the device are written on the back of the box but also included is a manual written in eleven different languages but doesn't give any further information about the charger other than what's already given on the box other than cautions and the obvious, telling you to put batteries in the slots and plugging the charger in. After saying that i suppose other than getting very technical which will go over most peoples heads (and that's not a criticism i include myself in the most people) there's not a lot more needed from the manual.
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D4 Specs and Features:
Size: 130 x 118 x 36mm
Input: 100-240V~50/60Hz 0.8A
Constant Current: 2A x 2/1A x 4/ 0.5A x 2(CH2&CH3) +1A x 2
Cut-off Voltage: 4.15-4.25V
Operating Temperature: 0-40℃
Quick and intelligent charger
Simple and convenient operation
Two-slot 2A Fast Charging
Unique Owl-Like UI Design
Battery Life Optimization Charging
Various charging protections
0V Activation Function Revives Over-discharged Batteries
Battery Life Optimization Charging
TC-CC-CV Three-Stage Charging
Elaborate Heat Dissipation Design
4 battery slots
Compatible batteries:
3.6V/3.7V rechargeable Li-ion / IMR/ INR/ ICR 14500 14650 16340 17335 17500 17650 18350 18500 18650 18700 20700 21700 22650 26650 Li-ion batteries
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My Only Comparison
Obviously how i found the charger had a lot to do with what i have experienced from my previous charger. I have been using the Nitecore i2 intellicharger for the last 2 years and i am talking about the original that only charges at 0.5A, has 2 slots, 3 small LED indicators per slot and 2x700 batteries would not fit. For 2X700 batteries i have been charging in a device i don't use for vaping at 1A which i only use for that purpose and only charge while i am around to keep an eye on it.
That's the background to my previous charging method but although their was a big room for improvement this is about the Xtar D4 and i am not knocking the i2 not after 2 years continuous use without ever letting me down and still works as well now as it did when i first bought it, a real trooper!
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Some Main Features
0V Activation Function
Current Buffering Technology
Heat Dissipation Design
Battery Charging Optimization Charging
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Charging Indication
Each battery slot has 4 LED strips above it that shows charging progression, the LED lights a very aesthetically pleasing shade of blue (objective of course). The indicator strips only activate above the slots which contain a battery and start by the strips lighting in order then they go off and keep repeating this cycle so 1 lit, 2 lit, 3 lit, 4 lit then all off. After a while of charging 1 strip lights solid while the other 3 lights follow the sequence as described previously. Again after a longer period of charging 2 strips light solid, followed after a while more 3 strips light solid then finally when the battery is fully charged all 4 lights are permanently on. The charger uses a buffer and when you switch the charger off any lights that are lit remain on for 15 seconds after cutting power to the charger.
I found 3 batteries took the same time to charge as 4 batteries.
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Review Continued Below:
http://www.xtar.cc/products_detail/productId=201.html
Introduction
The D4 is a 4 slot quick charger and is one of the AC range of chargers. It is an uncomplicated 4 slot charger from Xtar with LED strip progress indication (Xtar refer to it as Owl-Like UI Design). Supporting 2A charging for up to 2 slots and i found that using all 4 slots was charging at 1A speed, it certainly improved my own personal experience of charging my batteries. If you are well up on your technology this review might not be for you as it's a simple how a vaper who needs to constantly charge batteries found this product and nothing else. I don't have equipment to give data and charts but did consider including data i found on the internet but as i would be giving technical information that wasn't my own and don't fully understand i decided to not do that and only include some terminating Voltage's after charging so this is not a review full of Science just i did A and experienced B.
-----------------------------------------------------------------------------------------------------
In the Box
Contents:
D4 Charger
Power Cord
Manual
-----------------------------------------------------------------------------------------------------
Opening the Box
The D4 comes professionally packaged with outer cardboard box and strong inner plastic holder which feeds through the top of the box to allow for hanging for retail display purposes. The charger arrived in excellent condition and is a strong sturdily made product no complaints at this point whatsoever. The Specs and Features of the device are written on the back of the box but also included is a manual written in eleven different languages but doesn't give any further information about the charger other than what's already given on the box other than cautions and the obvious, telling you to put batteries in the slots and plugging the charger in. After saying that i suppose other than getting very technical which will go over most peoples heads (and that's not a criticism i include myself in the most people) there's not a lot more needed from the manual.
-----------------------------------------------------------------------------------------------------
D4 Specs and Features:
Size: 130 x 118 x 36mm
Input: 100-240V~50/60Hz 0.8A
Constant Current: 2A x 2/1A x 4/ 0.5A x 2(CH2&CH3) +1A x 2
Cut-off Voltage: 4.15-4.25V
Operating Temperature: 0-40℃
Quick and intelligent charger
Simple and convenient operation
Two-slot 2A Fast Charging
Unique Owl-Like UI Design
Battery Life Optimization Charging
Various charging protections
0V Activation Function Revives Over-discharged Batteries
Battery Life Optimization Charging
TC-CC-CV Three-Stage Charging
Elaborate Heat Dissipation Design
4 battery slots
Compatible batteries:
3.6V/3.7V rechargeable Li-ion / IMR/ INR/ ICR 14500 14650 16340 17335 17500 17650 18350 18500 18650 18700 20700 21700 22650 26650 Li-ion batteries
-----------------------------------------------------------------------------------------------------
My Only Comparison
Obviously how i found the charger had a lot to do with what i have experienced from my previous charger. I have been using the Nitecore i2 intellicharger for the last 2 years and i am talking about the original that only charges at 0.5A, has 2 slots, 3 small LED indicators per slot and 2x700 batteries would not fit. For 2X700 batteries i have been charging in a device i don't use for vaping at 1A which i only use for that purpose and only charge while i am around to keep an eye on it.
That's the background to my previous charging method but although their was a big room for improvement this is about the Xtar D4 and i am not knocking the i2 not after 2 years continuous use without ever letting me down and still works as well now as it did when i first bought it, a real trooper!
-----------------------------------------------------------------------------------------------------
Some Main Features
0V Activation Function
Current Buffering Technology
Heat Dissipation Design
Battery Charging Optimization Charging
-----------------------------------------------------------------------------------------------------
Charging Indication
Each battery slot has 4 LED strips above it that shows charging progression, the LED lights a very aesthetically pleasing shade of blue (objective of course). The indicator strips only activate above the slots which contain a battery and start by the strips lighting in order then they go off and keep repeating this cycle so 1 lit, 2 lit, 3 lit, 4 lit then all off. After a while of charging 1 strip lights solid while the other 3 lights follow the sequence as described previously. Again after a longer period of charging 2 strips light solid, followed after a while more 3 strips light solid then finally when the battery is fully charged all 4 lights are permanently on. The charger uses a buffer and when you switch the charger off any lights that are lit remain on for 15 seconds after cutting power to the charger.
I found 3 batteries took the same time to charge as 4 batteries.
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Review Continued Below: