Charger Xtar MC6 II Queen Ant II

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Xtar has updated the Queen Ant charger from dual usb input to power supply input and with all slots delivering the same current.

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The cardboard box lists lot of specifications, battery types and features.

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The box contains the charger, a power supply and a instruction sheet.

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The charger has a barrel connector input for 5V 3A.

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The only user interface is 6 leds, one for each slot, they are red while charging and green at all other times.

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The supported batteries are listed on the bottom of the charger.

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The slots uses the usual construction and works well. They can handle batteries from 31mm to 72 mm long.

supportedBatteryTypes

supportedBatterySizes

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The charger can only handle two 26xxx battery at a time.
The charger can easily handle 70 mm long batteries, inclusive flat top cells.



Measurements

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This is a nice CC/CV voltage charge curve with a termination current about 60mA

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Xtar%20MC6II%20%28SA18650-33%29%20%233
Xtar%20MC6II%20%28SA18650-33%29%20%234
Xtar%20MC6II%20%28SA18650-33%29%20%235
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The other slots looks similar.

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Xtar%20MC6II%20%28PA18650-31%29%20%231



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The old cell is also handled nicely.

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With the worn down cell the charger drops to a low CV charge current. The final voltage is slightly on the low side.

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This cell is better and is charged perfectly.

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The charger do not have any problems with 6 cells at a time.

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The charge circuit is this charger is fairly simple and I could do a voltage sweep to show when it charges.

Temp4854

M1: 29,7C, M2: 35,3C, M3: 38,1C, M4: 37,0C, M5: 34,5C, M6: 30,0C, HS1: 57,8C

Temp4855

M1: 39,1C, M2: 29,7C, HS1: 46,2C

Poweron

This charger has a simple charge circuit that will start very fast and not do anything, but charge.




Conclusion

This update to the charger has made it a very simple charger to use: Put batteries in any slot and wait. The waiting can be a bit long, but that is the price to pay for the simplicity.

I will call it a good LiIon charger.



Notes

The charger was supplied by a Xtar for review.

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