My old charger could load only with 900mA, which took in my 4200mAh battery good five hours. In various model forums I've read that you should charge the battery pack with up to 1C, prevent the formation of crystals and the battery properly "pressure" gets (1C means for example that you should charge the battery pack with 3000mAh capacity with 3000mA = 3A). So I opted for this model and have to say that I am more than satisfied. My battery is now fully charged in less than an hour, and thanks to the Delta-Peak cut-off, you do not look at the clock as well, so that the battery is not overcharged.
As only downside I would feel the 10cm short cable, with which the battery is connected. For the power cord around 1,50m is quite long.
All in all I would recommend this PSU Recommend unreservedly.
