For those not aware of PowerBug: www.powerbug.com Now, I know several people on TB use it. I also know that, because of the Powerbug's odd shape and slightly larger size, it has trouble fitting into some battery compartments. Does anyone have experience using these with an MM bass (Sterling, Stingray, Bongo, etc.)? Will these batteries fit fine in the flip-up battery compartment? I don't want to order these if they're not going to fit, so I'm wondering if someone else already took that chance.