Why would you charge it with a NiMH charger? You would only get about 80% charge if you cut it off right when it hits 3.6 volts. The need to be charged using their chargers which use CCCV (Constant-Current--Constant Voltage) which when it hits 3.6 volts, holds it, then the current dies off until hits 50mA then charge can be cut off. You can also charge it on a Lithium charger with the new
Lipodapter
Or you could get a good lab quality power supply if you are willing, BK Precision 1696. You could charge any battery with this bad boy. $330 Not for everyone.