Posted by Beginner Airsoft on Saturday, February 4, 2012,
If you need a "smart-charger" so you don't fry your battery, here's an alternative to those expensive ones. Get one of those lamp timers that you can set the hours you need to charge your battery. Then connect your battery to its charger, and the charger to the timer, and the timer to an electrical outlet. And now you have a simple but effective "smart-charger" for about $5-10.