Charger PSPower NC401

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I have not seen chargers from this brand before, but they have a nice line of chargers, this is can charge NiMH in AA/AAA size and 9V size.

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I got the charger in a cardboard box with specifications on.

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The pack included the charger and a mains cable, the manual was not ready yet.

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Mains power is directly connected to the charger and it is universal voltage.

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It do also have a socket for 12V power.

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The charge status indicators are 3 green leds for each battery.
They show charge status will charging and one will flash.

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There is a small green led for the 9V socket it will flash while charging and be steady lit when finished.
If there is an error a led done the 3 strip will flash.

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The charger has the typically two level slots used for AA and AAA batteries.

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And a socket for a 9V cell at the bottom of the charge slots.

supportedBatteryTypes

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Measurements charger


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This is a good -dv/dt charge curve, the trickle charge is at about 50mA. This is a bit high for LSD (low self discharge batteries.

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The other channels looks the same.

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And also the high capacity cells.

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No problem with the AAA, the charger uses same current as for AA cells.

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The charger is a bit slow to detect a full cell, but that is fairly common with -dv/dt termination.

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Four batteries are charge with nearly same speed as one battery.

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The charger uses about 0.4A from 12V.

Temp3529

M1: 40,4C, M2: 42,5C, M3: 42,7C, M4: 40,8C, M5: 47,1C, M6: 37,9C, HS1: 52,0C
Temperature is acceptable.

PowerOn

The charger needs about 2 seconds to initialize.

NumberOfCells

Charge current will depend a bit on number of cells in charger.


9V charging


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The charge current is below the rated 50mA. The termination looks like a timed termination.

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The charge current depends on voltage, it will start chaging a bit above 6V and stop at 10.5V volt.


Testing with 2830 volt and 4242 volt between mains and low volt side, did not show any safety problems.



Conclusion

A nice little NiMH charger, it is good at AA/AAA cells and 9V is acceptable.



Notes

The charger was supplied by Power Advanced Limited for review.

Here is an explanation on how I did the above charge curves: How do I test a charger