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Xtar VC2 Plus MASTER s LCD displejom a USB výstupom

NOVINKA
Cena 23.900
Dostupnosť: na sklade
Cena bez DPH: 19.917
Kód produktu: CHXTARVC2PM
Výrobca: XTAR Co., Ltd
Záručná doba: 24 mesiacov
KS

Xtar VC2 Plus MASTER s LCD displejom a USB výstupom

VC2 Plus MASTER je vylepšený a univerzálnejší nástupca nabíjačky VC2.

Medziunikátne vlastnosti Xtar VC2 Plus MASTER patrí možnosť nabíjať Liion/NiMH/NiCD akumulátorov, možnosť použiť nabíjačku a akumulátor ako záložný zdroj energie (Powerbank).

LCD displej je na trhu veľmi zriedkavý a slúži aj ako tester zobrazenia aktuálnych stavov akumulátorov.

Pri pohľade na LCD displej, môžete vidieť ukazovateľ postupného dobíjania množstva kapacity
prostredníctvom grafických dielikov a aktuálny stav dobitia kapacity v
percentách.

Pod týmito dvomi ukazovateľmi sa nachádza ukazovateľ času, za ktorý bude akumulátor dobitý. Na spodku displeja je umiestnené zobrazenie typu akumulátora (Liion/NiMH).
Také isté zobrazovanie displeja má aj akumulátor v druhej šachte.

Medzi ukazovateľmi sa zobrazuje aj nabíjací prúd (0,5A, 1A), ktorý si nabíjačka automaticky určí sama.

Nabíjačka vie inteligentne určiť príkon a automaticky nastaví vhodný nabíjací prúd O.5A
alebo 1A.

VC2 Plus MASTER je kompatibilná so štandartným USB rozhraním,
nie je potrebné preto míňať peniaze navyše.

Je kompatibilná aj s IMR lítiovými akumulátormi malej kapacity. Každý nabíjací kanál je nezávislý.

LCD
displej zobrazuje stav oboch akumulátorov v reálnom čase a každý akumulátor zvlášť.

Veľmi rýchlo vie identifikovať zlé akumulátory a včas na ne upozorniť užívateľa.

Indikátor stavu nabíjania na obrazovke, bude ukazovať 100%, FULL a červené podsvietenie šachty CH2 sa zmení na zelené, vtedy sú
akumulátory plne nabité.

VC2 Plus MASTER sa používa na nabíjanie 10440/14500/14650/16340/17335/17500/17670/18350/18500/18650/18700/22650/25500/26650/32650
3.6 / 3.7V Liion akumulátorov a NiMH akumulátorov AAAA/AAA/AA/A/SC/C/D1,2V.

XTAR VC2 Plus MASTER má špeciálnu technológiu, ktorá dokáže
zachrániť a obnoviť mŕtve akumulátory 0V.


V tedy sa aktivuje funkcia, ktorá prebudí k životu príliš vybité akumulátory, ktoré môžete opäť používať.

Nabíjačky XTAR používajú technológie, ako je ochrana proti prehriatiu, ochrana proti skratu a polarity, ochrana proti prepólovaniu.

VC2Plus MASTER má dva stupne spôsobu nabíjania CCCV.
CC konštantný prúd, zaisťuje efektívne nabíjanie. CV konštantné napätie sa používa na utlmenie
prúdu pri procese nabíjania, ked sa proces blíži ku koncu. Nabíjačka vie
automaticky zmeniť vhodý nabíjací prúd v závislosti na príkone. Používa
vysoko výkonnú inteligentnú PWM technológiu, ktorá výrazne znižuje straty
energie.

Nabíjačka je chránená pred poškodením nesprávnym vložením akumulátora.

Telo nabíjačky XTAR VC2 Plus MASTER je vyrobené z PC a ABS odolného ohňovzdorného materiálu s perfektným odvodom tepla a vysokou teplotnou odolnosťou.

Je hu možné napájať z USB rozhrania, čo zaručuje jej
univerzálnosť.

VC2 Plus automaticky preruší nabíjanie po jeho dokončení. Štart technológia SOFT, predlžuje životnosť
akumulátorov. Konštantný prúd a napätie nabíjania, bude akumulátor
udržiavať trvalo a stabilne.

Nabitie akumulátora prebehne až na 4,2V pri Liion akumulátoroch a pri NiHM/ NiCD 1,45V. Automaticky sa zastaví po
dokončení nabíjania a reštartovaní funkcie nabíjania.

Popis produktu:
Dve nezávislé pozície pre nabíjanie (je možné dobíjať jeden alebo dva akumulátory, rôzne vybité a rôznych druhov)
Nabíjací algoritmus: CC, CV
Nabíjací prúd: 500 1000mAh
Nabíjanie je kontrolované mikroprocesorom a vypína sa automaticky po dobití akumulátoru
Podporované akumulátory: 10440/14500/14650/16340/17335/17500/17670/18350/18500/18650/18700/22650/25500/26650/32650
3.6 / 3.7V Liion akumulátorov

 NiMH akumulátorov AAAA/AAA/AA/A/SC/C/D 1,2V.


Ochrana proti opačnému vloženiu akumulátorov
Nabíjací prúd sa automaticky mení
Prevádzková teplota 0 ~ 40
Vstupné napätie/ prúd: DC 5V 2.1A
Výstupný prúd (nabíjaci prúd): 0,5A až 1A CC: 500mAh x 2, 1000mAh x 2
Vypínacie napätie nabíjania: LiIon
4,2V/ NiMH/ NiCD1,45V


Rozmery: 13,1 x 6,6 x 3,3 cm
Váha nabíjačky 115g
Obsah balenia: Nabíjačka, USB kábel.

Ovládanie:Nabíjačka sa ovláda plne automaticky. Pripojte USB kábel do nabíjačky
a druhý koniec do USB rozhrania. LCD displej sa rozsvieti. Po vložení
akumulátoru do nabíjačky sa na displeji zobrazia aktuálne hodnoty
akumulátora a začne sa nabíjať. Po nabití akumulátora nabíjačka ukončí
nabíjanie. Akumulátor môžete vybrať z nabíjačky a používať. Po ukončení
nabíjania odpojte USB kábel z rozhrania.


Použitie ako Powerbank (záložný zdroj):
Vložte nabitý Li-Ion akumulátor do prvej šachty nabíjačky (druchá šachta nie
je podporovaná pre túto funkciu). Pripojte zariadenie, ktoré chcete dobíjať
napr. mobilný telefón. Nabíjačka sa automaticky spustí a začne dobíjať
zariadenie. Na displeji nabíjačky je zobrazovaný aktuálny stav postupne
vybíjaného akumulátora (počet dielikov, percentuálny stav na aký je
akumulátor aktuálne vybitý a spôsob napájania USB).
Po vybití akumulátora v nabíjačke sa nabíjanie automaticky preruší a vypne nabíjačku.


Upozornenie:
Nedoporučuje sa vkladať a nabíjať neznačkové a necertifikované akumulátory.
Pri dosiahnutí 4,2V, treba akumulátor vybrať z nabíjačky, aby nedošlo k
prehrievaniu a prebitiu akumulátora. Pri nabíjaní skontrolujte stav kontrolných
LED na nabíjačke, či svietia tak, ako je uvádzané v návode na použitie.
Vkladajte len tie typy akumulátorov, ktoré sú pre daný typ nabíjačky určené.

 

 

 

 

Review of Charger Xtar VC2 Plus MasterCharger Xtar VC2 Plus Master

DSC_1902

DSC_1903 DSC_1904

Xtar has been making good chargers for some time, this is their latest model. It can charger LiIon, NiMH and work as a power bank. It is powered from usb.

DSC_1873 DSC_1874 DSC_1875 DSC_1876

I got the charger in a retail cardboard box from. The box has a lot of specifications printed on the back.

DSC_1901

The box contained the charger, a usb cable, a bag, a instruction sheet and a warranty card.

DSC_2062

The bag can hold the charger, cable and instruction sheet, but there is not space for a usb power supply.

DSC_1905

The charger has a DC input socket (5.5/2.5mm), the 12V Xtar power supplies will not fit in this socket, only the supplied usb cable will.
The usb output is rated for 1A. It will supply power when the charger is powered or from a LiIon battery. It can be used to charge a device while charging batteries or as a power bank, but it cannot be used as a UPS.

DSC_1934

The user interface is a display, two leds and one button.
A short press on the button will change charge current, a long press will turn the display on/off.
The CH1/CH2 leds are red while charging and green at all other times.

DSC_1932 DSC_1936

When charging the display shows a percent and a time estimate. The time estimate will start fairly high (About 7 hours for 0.5A and 3½ hours for 1A charging) time and then use the measured voltage to estimate how long time is left. In my experience the value is not very precise for smaller cells. Charging a 14500 cell it started at 6:50, then was down to 3:06 ten minutes later and 2:01 about 1 hour later, the actual charge time was about 2 hours.

DSC_1933

When working as a power bank the display will show a rough battery status.

DSC_1910 DSC_1911

The charge uses the typical slider construction with a metal rail and works smoothly from about 31mm to 71mm, i.e. the charger can handle long protected 18650 and 26650 cell.

DSC_2116

There is no doubt what slot is used for usb output (Some chargers is missing that marking).

supportedBatteryTypes

supportedBatterySizes DSC_1916 DSC_1917 DSC_1918

DSC_1922 DSC_1920 DSC_1921 DSC_1923 DSC_1924 DSC_1925

The charger can handle 71 mm long batteries, including flat top cells.
The minimum charge current is 0.5A, this is on the high side for 10440 cells. It is possible to put one 32650 or D cell into the charger, but it will not connect to the plus terminal.




Measurements
  • When not powered and usb display is on the usb power cell will discharge with about 70mA for 30 seconds.
  • When not powered and usb display is off the usb power cell will discharge with about 0.08mA.
  • When not powered the non-usb power cell will discharge with about 0.06mA.
  • When battery is full the charge will charge with 0.4mA.
  • The charger will restart if battery voltage drops below 3.9 volt.
  • Charger will restart charging after power loss, or battery insertion.
  • Below 2 volt charger assumes NiMH batteries, the first 10 minutes the charge current is 0.1A, then it switches to regular charge current.
  • Between 2.0 and 2.9 volt the charger will charge with 0.1A
  • Above 2.9 volt regular LiIon with selected current will be done.


Charging LiIon

Xtar%20VC2%20Plus%201000mA%20(PA18650-31)%20%231

This is a good looking CC/CV charge curve with 100mA termination current.

Xtar%20VC2%20Plus%201000mA%20(PA18650-31)%20%232

It is the same on the second channel.

Xtar%20VC2%20Plus%201000mA%20(SA18650-26)%20%231
Xtar%20VC2%20Plus%201000mA%20(PA18650-34)%20%231

Other capacity works the same way.

Xtar%20VC2%20Plus%201000mA%20(BE18650-26)%20%231

The older cell goes into CV phase very early, this is as it should be.

Xtar%20VC2%20Plus%20500mA%20(AW18350-IMR)%20%231

Xtar%20VC2%20Plus%20500mA%20(KP14500-08)%20%231

Charging with 0.5A also looks fine. I would have likes a lower termination current, but it is a minor detail.

Xtar%20VC2%20Plus%201000mA%20(2xPA18650-31)


Xtar%20VC2%20Plus%20500mA%200.5ohm%20(2xPA18650-31)

Adding a 0.5ohm resistor in series with the power supply (To simulate long cables or weak power supply), did not present any problem. It was not possible to select 1A charge rate, only 0.5A worked.

Temp2594

M1: 32,5°C, M2: 32,4°C, M3: 32,9°C, M4: 37,7°C, HS1: 48,6°C

Temp2595

M1: 28,8°C, HS1: 44,7°C

StartupLiIon

The charger needs about 5 seconds to start.

ChargingLiIon

When current is changed during charging it will increase slowly and drop fast.



Charging NiMH

Xtar%20VC2%20Plus%201000mA%20(eneloop)%20%231

It looks like the charger stops on voltage, but then it starts on a top-off charge. Charging is reported done at the yellow line, i.e. before the top-off charge.

Xtar%20VC2%20Plus%201000mA%20(eneloop)%20%232

It is the same on second channel.

Xtar%20VC2%20Plus%20500mA%20(eneloop)%20%231

With 0.5A charge current there is no pause before the top-off starts.

Xtar%20VC2%20Plus%201000mA%20(eneloopPro)%20%231
Xtar%20VC2%20Plus%201000mA%20(eneloopXX)%20%231

Again a voltage termination and a top-off charge.

Xtar%20VC2%20Plus%201000mA%20(powerex)%20%231

Something goes wrong here and the charger misses termination. It does termination about 2 hours later and then adds a top-off charge.

Xtar%20VC2%20Plus%20500mA%20(eneloopAAA)%20%231

The AAA terminates a bit early, but again there is a top-off charge. The top-off current is lower when charging with 0.5A

Xtar%20VC2%20Plus%201000mA%20full%20(eneloop)%20%231

Due to the 10 minutes with low charge current, it takes eleven minutes to recognize a full battery. Top-off charge is also used on a full battery.

Xtar%20VC2%20Plus%201000mA%20(2xeneloop)

Charging two cells is about as fast as charging one cell. The charger draws about 1A from usb when charging NiMH cells.

Xtar%20VC2%20Plus%201000mA%20(2xeneloop)a

Same as above, but without input current. Temperature sensor is on the other battery.

Xtar%20VC2%20Plus%201000mA%20top-off%20(eneloop)%20%231

The top-off charge takes two hours, then the charger stops.

Temp2606

M1: 37,9°C, M2: 39,0°C, M3: 35,2°C, M4: 34,8°C, HS1: 57,5°C

Temp2607

M1: 32,4°C, HS1: 49,8°C

StartUpNiMH

The charger needs about 5 seconds to start with low current charge and like other NiMH chargers it measures voltage with current off.

StartUpNiMH2

After 10 minutes it will switch to selected charge current.

TopOffCharge

The top-off charge is done with current pulses at the selected charge current.



Charging LiIon and NiMH at the same time

It is possible to charge one LiIon and one NiMH battery in the charger at the same time.

Xtar%20VC2%20Plus%201000mA%20(eneloop+PA18650-31)

In this curve I recorded the NiMH battery, it looks the same as above.

Xtar%20VC2%20Plus%201000mA%20(PA18650-31+eneloop)

The LiIon also looks the same as above.



USB output
  • When power is removed from the charger, usb output turns off. It will not switch to power bank function!
  • USB output is turned off for a few seconds when power is connected.
  • Batteries are drained to 3 volt
  • When nothing is connected to usb output it will drain about 70mA for 30 seconds, then 0.08mA from the battery.
  • USB output is coded as usb charger (DCP).
  • USB output is powered when the charger is powered (Voltage will be a bit low).
  • It is possible to charge a LiIon battery while supplying usb power, but charge rate is reduced.
  • USB output can be used as power bank, but only uses one cell.
  • To restore overloaded usb output battery/power must be removed from charger.


Xtar%20VC2%20Plus%20load%20sweep

The usb output is rated at 1A and can deliver 1.6A. It do maintain voltage fairly well when running on a battery.

Xtar%20VC2%20Plus%20usb%20power%20load%20sweep

But it can also run directly from usb input power, the current limit is the same, but voltage is lower.

Xtar%20VC2%20Plus%20usb%20power%20+%20charge%20load%20sweep

I also tried charging a battery while using usb output, it worked fine, but the charge current was limited to 0.5A

Xtar%20VC2%20Plus%20usb%20out%2010ohm%20(PA18650-31)

A 18650 battery can maintain 0.5A usb output for more than 3 hours at 0.5A load, when the battery is empty the output is turned off.

Xtar%20VC2%20Plus%20usb%20out%205ohm%20(PA18650-31)

Increasing the load to 1A reduces the time to about 1½ hour.

10ohm

Output has very low noise with 11mV rms and 80mVpp

5ohm

Increasing the load will increase the noise, but it is still very low 16mV rms and 95mVpp

5ohmusbpower

When supplied from a usb power supply the charger do not add noise to the usb output.



Conclusion

As usual Xtar chargers are very good at LiIon charging, it did also do a good job on eneloop cells, but I do not like that it missed a termination on the powerex cell. I am not very impressed with the remaining time display, I would have preferred voltage or charged capacity.
I do like that the usb output can both be used as pass through and as power bank, this makes it possible to both charge my phone and some batteries in on go from a single usb power output.
The requirement for a special cable for the charger does prevent usage of inferior usb cables, but requires that the extra cable is lugged around (Not that hard with the supplied bag). For people that loses or damages the cable Xtar is selling spare cables.

The final result must be that it is a good charger for LiIon cells, but you have to watch out for some NiMH batteries.



Notes

The charger was supplied by Xtar for a review.

Here is an explanation on how I did the above charge curves: How do I test a charger
Read more about how I test USB power supplies/charger