No corksniffing gripes from me, BUT anyone considering placing active pickups into a guitar like a Strat that doesn't have a battery box already installed, should realize that means having to loosen all the strings and remove the pickguard each time the battery needs replacing. That is a hassle snd time-consuming, and even not possible in a on-the-fly gigging situation. So either install a battery box on the backside of the guitar... or invest in an external solution like the EMG 918 pedal that contains the battery and resides on your pedalboard so no special effort is needed at time of needing to replace the battery.
The ES-918 is an external 18 Volt power supply for EMG Pickups. If you have an instrument that doesn’t fit a battery or you don’t want to install a battery in your guitar, the ES-918 is perfect for you. You can easily power your EMG pickups with 9 or 18 volts using a stereo cable. In addition...
www.emgpickups.com
The only change in your setup required, is that the ES-918 unit would become the first pedal in your signal chain, and you would connect your guitar to it using a stereo/TRS cable. The other nice benefit you get from it, is that it can become a single source of 9 volt battery power for ALL your guitars that use active pickups. No more needing to maintain separate 9 volt batteries in multiple guitars. You would just need to buy shorting clips to install into the battery compartment of each guitar, which are very inexpensive.
The second benefit/feature of it is that if you install a second 9 volt battery into the unit, you have the option to power the pickups at 18 volts for additional headroom.
So, something to consider.
I own one of these ES-918 units and it works as advertised.
Oh, everyone asks about the option on this unit to plug in a 9 volt power adaptor instead of using a 9 volt battery. Even the Owners Manual recommends against it, because using AC Power adds noise to your guitar signal. I tried it and confirmed that the added noise wasn't worth the small convenience.