Hi my friends!
i have a nitecore UM20 charger here and try to share a few things that came in my mind and…
some Pictures:
the pic of the front side of the box was so shaky - i had to delete it imediately to prevent brain damages
the back of box gives some data (longer list at the end)
the user manual in chinese
and english
when unboxed, you find the included USB cable wound up at the backside
untangled the 80cm long cable
there is a flap to open where the cable is connected - to the USB OUT !
the USB IN and a “priority” switch can be found at the top side
the charger is working (with a 14500 and a 18650 pull plugged into my laptop)
some detail shots:
massive looking front contact
slider with spring
contact spring - when the slider contacts here (62mm+) the Amps goes from 0,5 to 1
the Specifications:
table(table#posts).
|Input voltage: |Micro USB DC 5V|
|Output voltage: |4.2V ±1% / 5V|
|Output current: |1000mA / 500mA|
|Compatible with:|Li-ion / IMR: 18650, 18490, 18350, 17670, 17500, 16340(RCR123), 14500, 10440|
|Dimensions: |100mm× 56mm×35mm|
|Weight: |77.2 gram (without batteries or power cord)|
Features:
- USB powered Li-ion battery charger
- High definition LCD displays real time charging status
- Features USB output charging
- Integrated intelligent power management system
- Intelligently detects input power
- Intelligently distributes charging power
- Priority Mode offers either battery or USB charging
- Enables data transfer via USB
- Intelligently selects charging current based on battery capacity
- Features rear USB cable winder and grooves to accommodate 2.5mm/3.0mm USB
cables - Constructed from fire retardant materials
* Features reverse polarity protection
* Designed for optimal heat dissipation
* Certified by RoHS, CE, FCC and CEC
* insured worldwide by Ping An Insurance (Group) Company of China, Ltd.
my conclusion:
this is a nice device!
i am a fan of the micro-USB-connector since you have one nearly everywhere! i finally found a charger to use in my car.
build quality of nitecore is good (as always) and the price is also very okay (especially with the secret Code)
the “Enables data transfer via USB” means only that the data from the device connected to out are routed through the charger…
NO charging data are collected!
the Good:
*clean look
*basic information on display whats going on with the batteries
*since input is USB it can be used with a lot of power sources (PC - car - phonecharger)
*quite sturdy - feels good altough its made of plastic
*the slider and springs seem to be good quality
*switch to decide which device is to charges first when input is to low
the not so good:
*some may be confused that the charger comes preconfigured with a cable connected to the USB out
*26650 do not fit
*no power bank funktion
*no way to charge NiMh batteries
