Test/review of Charger PALO C906W

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HKJ
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Test/review of Charger PALO C906W

Charger PALO C906W
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This is a fairly unknown brand of charger, it can charge and discharge up to D cells and also support 9V batteries.
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The charger did not include any box, but was only wrapped in bobble wrap.
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The pack included the charger, a mains cable and a instruction sheet.
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The charger is mains powered and has DC socket, but it is not marked and I have not tried it.
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The display shows the 4 batteries and charge, error and discharge indicators.
The button is used to switch between charge and discharge.
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Charging display, the batteries are animated.
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Discharging display, the battery show remaining charge.
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The indicator for 9V batteries is only a red led, the display is not used.
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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
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Measurements charger


  • Power consumption when idle is 0.5 watt
  • 9V do not terminate
  • Without power it will discharge a NiMH battery with about 0.1mA
  • The charger will restart when a battery is inserted or power is cycled.

Charging 1.2V batteries
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This is a -dv/dt charging and there is no top-off or trickle charge when finished, this looks good.
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The other 3 slots are the same.
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The EneloopPro also got the same nice treatment.
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But with the Leise the charger decides to use a 90mA trickle charge.
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The AAA looks fine, but the current is a bit high.
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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.
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The charger maintains the same charge current with 4 batteries in it.
Temp5761
M1: 38.7°C, M2: 34.7°C, M3: 33.5°C, M4: 31.8°C, M5: 38.1°C, HS1: 42.7°C
The charger do not get very warm (I did this test with closed lid and only opened it for the photos).
Temp5762
M1: 33.7°C, HS1: 54.3°C
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.
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The discharge current is only about 350mA and the charger will charge the battery when finished.
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The other 3 slots looks similar.
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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: 36.5°C, M2: 35.6°C, M3: 34.8°C, M4: 33.6°C, M5: 42.3°C, HS1: 45.6°C
The charger uses a low discharge current, this means there it not much heat.
discharge
The discharge is with constant current.
Charging 9V batteries
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The 9V charging is a much simpler and dumber charger, it will never terminate the charge current.
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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

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

MRsDNF
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Thanks HKJ. Beer

 

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