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.
In this video we take a look at two of the most common reasons for rapid battery drain in a bass with an LHZ preamp. A 9 volt battery should last 6-8 months of normal use. However, certain wiring issues can cause an active preamp and pickups to always be powered on and reduced battery life to only a few weeks. While this video specifies the LHZ preamp, the same issues and resolutions apply to almost all active preamps that…
In this video we answer the question “What happens to my active preamp when my battery dies?” This is a common questions from players buying a bass with active electronics for the first time. The good news is this: your preamp will NOT just die in mid performance! Instead, failing batteries just slowly fade out over many months so you have plenty of advance notice.
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…
