Jesus. $65 for $20 charger that is complete and utter crap.
Avoid those chargers like the plague, they're known as "The blue box of death" for a reason.
70% of the "my gun doesn't shoot" I get is because the batteries have been killed by one of those blue boxes of death.
Gun Technician and Tuner
Well versed in every AEG version and all major gas and spring systems.