To Dave H- sorry I didnt notice the built in AC power input. But the features of the I-balance
charger are exactly the same sa the 3Racing's. Even the words are the same, like "copy and paste".
Can you further explain the "switching noise" issue? Wont a noise capacitor cure this problem?

To Wile E Coyote- Man! Thats inspiring! Im gonna gather some courage this
coming weekend so I can open up my PS. Are your fans putting cool air
from the outside or sucking hot air from the inside? One fan isnt enough?
I also see you're not using any fuse anymore, is this safe? I think Im going
to put an "ON OFF" switch.