Test/review of Charger NiteCore LC10

1 post / 0 new
HKJ
HKJ's picture
Offline
Last seen: 8 hours 12 min ago
Joined: 05/24/2011 - 12:23
Posts: 6764
Location: Copenhagen, Denmark
Test/review of Charger NiteCore LC10

Charger NiteCore LC10
DSC_3856
This is a minimum USB charger and power bank with a light.
DSC_3833 DSC_3835 DSC_3834 DSC_3836
The box shows how it is used on the back.
DSC_3853
The box contains the charger, a plug converter (Apple lightning) and a manual.
DSC_3858 DSC_3859
The two magnetic battery connectors. There is no polarity, the battery can be connected either way around.
DSC_3863
DSC_3864
The charging input is a rather simple USB-A connector with the power bank output inside.
DSC_3862
Here the power bank output is released.
DSC_3861
DSC_3865
And with the Apple Lightning converter attached.
DSC_3860
On the back is some specifications and a touch switch.
DSC_3866
Behind this white cover is a couple of leds.
DSC_6022
Red leds to show charge state, they will automatic turn on when charging and can be turned on by the touch switch when used as a power bank (They will also briefly turn on when a battery is connected).
DSC_6023 DSC_6025 DSC_6024
There is 3 white leds that can be used for some illumination, they have 3 levels and are also turned on by the touch switch. The light output is fairly limited.
The white leds also turns on when usb power is supplied without a battery connected.
DSC_3857
The magnetic clamps only works with LiIon batteries and can handle just about any size.
supportedBatteryTypes
supportedBatterySizes DSC_6019 DSC_6021 DSC_6020 DSC_6044
In praxis the size is limited due to charge current, with 1A the current is on the high side for many smaller batteries.
Measurements


  • Discharges with 2mA when not connected to power
  • Red light is 18mA at 4.2V (3 leds) and 9mA at 3.6V (1 led)
  • White light is 6mA, 11mA and 32mA at 4.2V and 6mA, 8mA and 22mA at 3.6V

Charging
Nitecore%20LC10%20%28SA18650-33%29
The charging circuit obvious has some temperature problems, this means the current is reduced when charging a empty battery. The circuit also lacks a real turn-off at the end of charging.
Nitecore%20LC10%20%28SA18650-33%29a
Input current from usb goes slightly above 1A during charge.
Nitecore%20LC10%20%28SA18650-26%29
On this battery the voltage raises faster and the current is not reduced as much due to heat.
Nitecore%20LC10%20%28PA18650-31%29
No surprise here.
Nitecore%20LC10%20%28BE18650-26%29
With this old cell the charge curve looks a bit funny, but it do charge the battery and for once it terminates.
Temp6655
M1: 47.7°C, HS1: 49.7°C
Charge%20Solar%20LiIon
Nitecore says soler panels can be used as power source and it definitely looks like it.
USB output

  • Discharges with 2mA when not connected to power
  • USB output is coded as USB charger (DCP)

NiteCore%20LC10%20load%20sweep
The USB output can deliver about 1.1A with a full battery.
NiteCore%20LC10%20RP%20load%20sweep
Also when switching the battery polarity.
NiteCore%20LC10%20usb%20out%2010ohm%20%28SA18650-33%29
At 0.5A output the voltage stays stable until the battery is empty, i.e. about 2.7V, then it turns off. This is fine.
NiteCore%20LC10%20usb%20out%205ohm%20%28SA18650-33%29
At 1A output the boost converter has some trouble maintaining the output voltage when the battery is discharged.
10ohm
At 0.5A the noise is 6mVrms and 53mVpp, this is very low noise.
5ohm
At 1A the noise is 90mVrms and 850mVpp, here it has high noise, but sometimes it went away.
Unpowered%20voltage%20sweep
It is not a good idea to let a empty battery stay connected, it will be discharged very low. Generally I do not see it as a problem with this type of charger, usual people will disconnect it when finished with using it.
Conclusion
The charger is very compact and can charger LiIon batteries and be used as a power bank. It is not perfect for either application, but can definitely be used as a compact travel charger.
The charger cannot maintain full charge speed with good batteries when they are empty and it do not really terminated charging, but just reduces current. It will work with a solar panel. The usb output is a bit low power at 1A and has good coding.
I will call it fairly good as a travel charger, but not as a regular charger.
Notes
The charger was supplied by a Nitecore for review.
Here is an explanation on how I did the above charge curves: How do I test a charger

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/