We often get questions about batteries from clients who are used to passive instruments: In this video we look at how preamp batteries discharge over time to answer these questions, and compare a standard Alkaline battery against a common NiMH rechargeable battery.
We have received a small number of reports from users indicating that their battery life is extremely short. In normal use, with the bass unplugged when not playing, a 9-volt battery will typically last a year or longer. In these cases, batteries would be depleted within days or weeks. CAUSE OF BATTERY DRAIN: Certain installations can bypass the ground switch in the barrel jack by shunting the negative battery power via a the control cavity walls lined with foil or…
