PALO C906W

DSC_9649

DSC_9653 DSC_9654

This is a fairly unknown brand of charger, it can charge and discharge up to D cells and also support 9V batteries.

DSC_9630

The charger did not include any box, but was only wrapped in bobble wrap.

DSC_9648

The pack included the charger, a mains cable and a instruction sheet.

DSC_9655 DSC_9656

The charger is mains powered and has DC socket, but it is not marked and I have not tried it.

DSC_9652

DSC_0711

The display shows the 4 batteries and charge, error and discharge indicators.
The button is used to switch between charge and discharge.

DSC_0708

Charging display, the batteries are animated.

DSC_0709

Discharging display, the battery show remaining charge.

DSC_9657

The indicator for 9V batteries is only a red led, the display is not used.

DSC_9658 DSC_9659

The slots are with a slider and large enough to handle from AAA to D sizes cells, between the slots are snaps for two 9V batteries.

supportedBatteryTypes

supportedBatterySizes

DSC_9660
DSC_9662
DSC_9663
DSC_9664
DSC_9665




Measurements charger

Charging 1.2V batteries

PALO%20C906W%20%28eneloop%29%20%231

This is a -dv/dt charging and there is no top-off or trickle charge when finished, this looks good.

PALO%20C906W%20%28eneloop%29%20%232
PALO%20C906W%20%28eneloop%29%20%233
PALO%20C906W%20%28eneloop%29%20%234

The other 3 slots are the same.

PALO%20C906W%20%28eneloopPro%29%20%231

The EneloopPro also got the same nice treatment.

PALO%20C906W%20%28leise25%29%20%231

But with the Leise the charger decides to use a 90mA trickle charge.

PALO%20C906W%20%28eneloopAAA%29%20%231

The AAA looks fine, but the current is a bit high.

PALO%20C906W%20full%20%28eneloop%29%20%231

A full cell is detected in about 13 minutes, this is fast for a -dv/dt charger. There is no top-off or trickle charge.

PALO%20C906W%20%284xeneloop%29

The charger maintains the same charge current with 4 batteries in it.

Temp5761

M1: 38.7C, M2: 34.7C, M3: 33.5C, M4: 31.8C, M5: 38.1C, HS1: 42.7C
The charger do not get very warm (I did this test with closed lid and only opened it for the photos).

Temp5762

M1: 33.7C, HS1: 54.3C

Poweron

The charger starts fairly fast and uses the usual pulsing to check the voltage.



Discharge 1.2V batteries

Pressing the unmarked button on the charger will start a discharge cycle.

PALO%20C906W%20discharge%20%28eneloop%29%20%231

The discharge current is only about 350mA and the charger will charge the battery when finished.

PALO%20C906W%20discharge%20%28eneloop%29%20%232
PALO%20C906W%20discharge%20%28eneloop%29%20%233
PALO%20C906W%20discharge%20%28eneloop%29%20%234

The other 3 slots looks similar.

PALO%20C906W%20discharge%20%284xeneloop%29

Running all 4 slots simultaneous the discharge current is the same, but for some reason the charger do not charge when finished with discharge (It did that when I did another run, but I did not record that).

Temp5750

M1: 36.5C, M2: 35.6C, M3: 34.8C, M4: 33.6C, M5: 42.3C, HS1: 45.6C
The charger uses a low discharge current, this means there it not much heat.

discharge

The discharge is with constant current.



Charging 9V batteries

PALO%20C906W%20%289V%29%20%231

The 9V charging is a much simpler and dumber charger, it will never terminate the charge current.

Voltage%20sweep%200-12V

Checking the charge voltage and current shows that the charging circuit is only a resistor.



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



Conclusion

Nearly all the charge curves looks good, but it uses a high trickle charge once on a AA cell.
With 9V it is not a very good charge because it has no termination or indication on a full cell.

The rating for round cell is fairly good, but 9V is only usable.



Notes

The charger was supplied by Fasttech for review.

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