So I managed to buy a battery pack to use for my $50 robot. It is a NiMH pack, with 6.0V and 1500 mAh.
I had a spare power supply, which had an output of 6V, 300mA.
As I was about to use the power supply to charge the battery pack for the first time, I used my multimeter to check which lead of the power supply was positive or negative. While doing this, I noted that the voltage the power supply was output-ing was around 11-12 Volts. As I do not know a whole lot about electronics, I was wondering if this is normal, and if I can use this power supply to charge my battery.
Any and all help would be greatly appreciated.