Could be to do with the rate of charge and the heat being generated. In general a rechargeable battery will stop charging if it gets too hot (a very useful safety feature). However, a charger designed to run at 110 volts works differently to a charger running at 240 volts. Check the power rating of the charger and the milliamp/hour charge rating and see how this compares to your old charger.
The OEM battery might be able to cope with the different charge rate (being designed for all World voltages) whilst the 3rd party batteries cannot.
Nikkor AF-S DX; 18-105 f/3.5-5.6G VR, 55-300 f/4.5-5.6G VR, 35mm f/1.8G
Speedlight SB-700 http://keystrokesukimages.com