On a slightly different idea?

..sorry if this might be covered somewhere else.
My Alembic has the anniversary electronics, anybody retro fitted a mini xlr socket
and hooked it up to a DS5 or similar external power supply, would involve drilling the body to fit one, sacrilege or practical solution to replacing the batteries every two weeks

?
So, a series bass with batteries fitted and connected to a DS5, are there blocking diodes installed in the series wiring to prevent damage to the batteries or the batteries sinking the power ?
If rechargeable batteries are installed, does the DS5 have sufficient power to charge or float charge the batteries, and power the electronics ?
Sorry if this sound a bit stupid, but thought would ask.
My Alembic with anniversary electronics, fitted with two non rechargeble Duracell batteries, practice every night for 1 hour ( 7days ) then gigged at weekend for 3 hours ( 2 nights) batteries are lasting, or should I say bass still sounding great, batteries last 14 days, looking for practical solution to not having to replace the batteries every two weeks.