Etronix Mains Ac Wall Charger 1000Mah For 7.2V With Deans Plug
This is a good, cheap, fast charger.
At 1000Mah output, allowing for around 10% inefficiency which is the norm for chargers, the following charge times should be expected:
1800-2000 Mah - 2 to 2 1/4 Hours
2300 Mah - 2 1/2 Hours
3000 Mah - 3 1/4 Hours
Please note: This is NOT a peak charger - you must work out the charge time for your battery and switch off when it's had it's time to avoid overcharging.
To calculate charge time, take your battery capacity and divide by 900 - e.g. 3600 divided by 900 = 4 hours.