Charger Xtar MC4 update

Review of MC4, read this first

DSC_1770

This is a fairly small 4 slot charger from Xtar with usb power input. It can only charge LiIon batteries.

DSC_1760 DSC_1761
DSC_1762 DSC_1763

This review will only be an update, not a full review.




Measurements

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A normal charge curve, it looks the same as the first review.

XTAR%20MC4%200.5ohm%20%28SA18650-33%29%20%231

With a 0.5ohm resistor in series (i.e. a weak power supply or a long cable) the charger over charged the batteries, the updated version do not over charger, in this case the charge voltage is a bit low (Within the allowed +/- 0.05V).

XTAR%20MC4%201ohm%20%28SA18650-33%29%20%231

I tried one test more, this time with a 1ohm resistor, i.e. even worse cable and the charging was perfect.

XTAR%20MC4%200.5ohm%20%284xSA18650-33%29

The orginal test was with 4 cells in the charger and it also looks fine in that case.



Conclusion

This means I will give the charger a good rating.



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