There are other options to routing for the battery. There is usually room under the pick-guard for a battery. The downside is that you have to remove the pick-guard to replace the battery. The upside is that a 9v lasts a LONG time on Alembic non-series electronics. Mine usually go more than a year. Another alternative is Fishman's Universal rechargeable battery. Only requires a small hole (1/2 diameter) drilled in the pick-guard for mounting the mini USB charging connector.
Bill, tgo