How Long Do Batteries Last in Your Active Bass?

Because we know how important this topic is, today we will talk about how long batteries last in your active bass.

An active bass has a preamp installed internally to improve the pickup signal before it reaches the output jack. It is driven by a battery (typically nine volts, sometimes 18 volts). Batteries are crucial to the functioning of bass because they power the device and allow the information to be transmitted to the amplifier.

We frequently have to replace these cells because they drain too quickly. However, most of us have wondered, “What time interval do you need to consider?” “Why does it run down so fast?” “How can you ensure the battery still has power?” and so on.

So, today we will talk about how long batteries last in an active bass because we know this is an important subject, and we don’t want you to have to stop playing because your battery died.

Let’s see how long batteries last in an active bass and solve the mystery.

How Long Do Batteries Last in Your Active Bass?

The battery life of a bass can range from a few hours to several days, based on the type of battery used, the quality of the battery, and the frequency with which the bass is played. It will require more frequent battery changes if the bass is performed frequently.

The average battery life of an active bass is between 4 and 12 months, but this varies greatly with how often the instrument is inserted into an amplifier. If you only plug in the bass rarely, the batteries will last much longer. Avoid using rechargeable batteries onstage as a general guideline.

For an active bass, it’s always recommended to have a spare 9V battery on hand. It won’t give out on you, and you won’t waste money constantly replacing dead cells. Keeping an eye on your bass’s battery life and swapping it out when necessary are easy and quick maintenance chores.

Because it takes so long for bass strings to become unusable, it’s easy to forget that they’ll ultimately lose their tone. Therefore, keeping track of how often you use your pedal and regularly changing your bass strings is crucial.

What Happens When Your Active Bass Runs Out of Battery?

When a bass’s battery dies, the instrument’s sound will weaken and become distorted. No more amplified bass sounds once the battery expires. You will know your bass’s charge is dying if it stops working. It will lose its bottom end, become more difficult to hear, and be unpleasant to experience overall.

If your bass is active only, it will soon stop producing an amplified tone and need a new battery. But some basses have the option to alternate between active and passive. Passive mode allows the bass to be played through an amplifier if the battery expires.

Switches like this are not standard on all active basses, but they are on those made by Warwick and a few others. These toggles are typically situated near the bass’s tone controls. For some basses, depressing the volume control brings up the switch.

The absence of an active-passive switch necessitates replacing the battery whenever it runs out of juice. Keep in mind that when they die, rechargeable cells behave slightly differently. There will be no gradual loss of volume; all sound will vanish. As a result, it’s recommended that you don’t use rechargeable cells for your live performances.

This is what happens to an active bass’s tone if you don’t replace the battery

How Often Should I Change the Active Bass Battery?

It’s standard to check the battery life of your bass often and replace it when it gets low. One way to keep them from suddenly dying on you is to replace them every 4 months. The second is to monitor the battery’s life with a multimeter and only change it when it’s nearly dead.

Also, if the battery is even a bit low, you should use a new one before going on stage. You should switch out the battery occasionally to keep your bass in good shape. By replacing it every four months, you can avoid paying too much attention to the battery.

It’s unlikely to ever break down on you, and you’ll only need to change it occasionally as part of your regular bass upkeep. The advantage of a multimeter is that you can use it to check the health of your battery and alert you when it is about to die.

You can rest assured that it won’t suddenly shut down on you, and you’ll also save money by not having to discard partially used batteries. Leaving your active bass plugged in will drain your battery, even if you’re not using it now. Simply plugging a cable into the input jack will trigger the preamp’s circuit, independent of the signal’s status at the other end.

The battery will eventually die if you don’t use your amplifier or aren’t linked to it. Keeping a cable connected to your bass while you’re not using it will cause the preamp to drain the battery over time. As a result, it will lose functionality faster and need replacing sooner than expected.

If you want to do yourself a huge favor, you should disconnect your active bass after each use. Besides getting more use out of your battery life, you’ll also be able to spend less. And even if you don’t mind the inconvenience, it’s a good practice to get into to keep the cables and input jack from getting damaged.

9v Batteries (When should I change it in an active guitar or bass?)

Active Bass: Pros and Cons

Active basses, similar to the front end of a conventional bass amp, feature an internal preamplifier fueled by batteries. These days, active basses are more likely to have passive sensors and an active preamp/EQ than to have an active pickup of any kind.

Typically, these circuits are fueled by a single 9-volt battery, but recently, we’ve seen an uptick in the popularity of 18-volt instruments with spaces for two 9-volt batteries. Increasing the power by a factor of two increases the headroom and other benefits of active devices over passive ones.

Many bassists use words like “bright,” “snappy,” and “hi-fi” to characterize the sound of an active bass, but this is probably because active basses give you more control over your tone than passive basses do. Because of their innate tone-shaping ability, active basses are frequently heard in aggressive music, such as prog metal.


A bass with active electronics can drive lengthy cable runs without experiencing the dreaded “tone suck” — signal decay, noise, and interference — that would be experienced with a passive bass due to its preamp buffering and greater output signal level.

In doing so, you’re giving your amp a more robust and undistorted sound to work with. Turning down the volume or adjusting the highs will give your active bass a more “passive” tone if it sounds too high-fidelity. Passive basses’ tone controls are limited to cutting frequencies, while active instruments’ equalizers allow you to enhance frequencies for more tonal variety.

Incorporating the sound-sculpting capabilities of a bass amp into your instrument, active basses typically feature 2– or 3-band EQ in the preamps, which is useful for fine-tuning your tone at the source when plugging directly into a PA system or audio interface. An active bass is useful if you do session work or perform in a cover band and need to switch musical styles mid-session or live set.


Bassists staunchly in the passive camp may find that the hot, consistent signal generated by active basses sounds compressed and, thus, lacks dynamic range. And we’ve all experienced the unpleasant hiss when treble frequencies are boosted too much in an active bass EQ.

Also, some effects pedals aren’t compatible with active basses, so a stronger output sound could cause havoc with your setup. Further, there is the problem of battery disposal to consider.

Unless your bass can switch between active and passive states, your sound will stop when the power in your active bass expires. Swapping the batteries in an active bass with the hinged battery chamber is a breeze if you have a spare battery.

A significant headache, especially midway through the performance, can arise if you don’t or if the door to the battery compartment screws on. And a warning to bassists who always keep their instrument cable connected. Expect to replace your batteries regularly, so stock up now.

Pros And Cons Of Passive vs Active Basses | Guitar Tech Tips | Ep. 94 | Thomann


The battery life of active basses is never a significant issue. If you replace it every six months or use it to its maximum potential with a voltmeter, you won’t have to give it much thought. In light of this, if you play an active bass, it’s smart to always keep a few spare 9V batteries in your gig luggage.

Although battery failure is uncommon, some people wouldn’t risk a live performance if it depended on a single one. Similarly, you can swap in a replacement battery for a bass guitar within a minute so assuming you have a tool, you can finish the job in minutes so it’s easier than you think.

Guitar Related Topics:

Are Expensive Guitars Worth It? Electric, Acoustic & Bass

Top 12 Best Bass Guitar Brands 

8 Best Strings for Slap Bass & Funk Guitar 

Why Do My Guitar Strings Feel So Tight/Loose? Solved

Why Are My Guitar Strings So Hard to Bend & How to Fix It

Can I Use Guitar Pedals For Bass? Is it okay?

Why Do My Guitar Strings Keep Breaking At The Bridge?

Cheap VS Expensive Guitar Pedals: Main Difference, Pros & Cons

The 14 Best Combo Amps For Acoustic Guitar 

Top 13 Fuzz Guitar Pedals (All Budgets)

The 14 Best Compressor Pedals For Jazz Guitar 

The 9 Best Preamp Plugins (For Vocals, Guitars & More)

The 12 Best Tuner Pedals For Bass & Guitar 

Top 7 Ring Modulator Pedals For Bass & Guitar 

Top 11 Plugins For Making Metal  (Guitars, Drums & Effects)

Top 10 Guitar Amp Plugins (And 5 Best FREE Simulators)

Top 6 Overdrive Pedals For Worship Guitar 

Best Small/Mini Guitar Pedalboards 

Top 12 Small Guitar Volume Pedals  (Mini Pedals)

Top 12 Audio Interfaces For Guitar (On All Budgets)

Top 7 Available Arpeggiator Guitar Pedals 

The 5 Best Autopan Guitar Pedals 

Top 12 Guitar Pedals Great For Telecaster 

11 Best Effect Pedals For Jazzmaster Guitar 

Top 12 Effect Pedals Great For Les Paul Guitar 

Top 9 Pickups For Worship Guitar 

Top 12 Guitar Pedals Great For Stratocaster 

12 Best Mics For Recording Acoustic Guitar 

Top 12 Multi FX Pedals For Acoustic Guitar 

Can You plug a Guitar into a Keyboard Amp?

Top 17 Best Guitar Pedal Brands In The World 

How To Make My VST Guitar Sound More Realistic? – 8 Tips

How To Make Bass Guitar Sound Like Synth – Tips & Advice

Do Left-Handed Guitar Players Have An Advantage?

How To Make Bass Guitar Sound Deeper / Get a Great Bass Tone?

Top 12 Electric Guitar Brands In The World 

Top 13 Acoustic Guitar Brands In The World 

Top 7 Acoustic Guitar Plugins (And 4 Best Kontakt Libraries)

Top 6 Electric Guitar VST Plugins (Best PAID & FREE Picks)

Top 6 Classical Guitar Plugins & Kontakt Libraries (And FREE Guitars)

Top 10 Guitar Libraries For Kontakt  (Acoustic, Electric, Bass & Freebies)

Top 12 Plate Reverb Guitar Pedals 

Top 12 Plugins For Mixing Guitar (Acoustic, Electric & Bass)

Why Did My Guitar String Break While Tuning Down?

Are Guitars A Good Investment? Cons & Pros & What To Look For

Can You Use A Pa Speaker As A Guitar Cab? Answered!

How To Use Guitar Pedals In Logic? Answered

Top 7 BitCrusher Guitar Pedals Available 

12 Best Acoustic Guitar Strings For Beginners 

Top 12 Guitar Pots For Strat & Telecaster 

11 Best 4×12 Guitar Cabinets (Marshall, Diezel, Messa…)

Top 12 Guitar Wiring Kits (Three Types)

11 Best Guitar Humidifiers on Any Budget 

Top 9 Left-Handed Bass Guitars (With Best Value)

The 11 Best Ambient Guitar Pedals 

The 12 Best Guitar Amp Attenuators 

Top 8 Bass Guitar Strings For Metal 

The 7 Best 1×12 Guitar Cabinets (All Budgets)

12 Best Acoustic Guitars Under $2000

Top 12 Classical Guitars Under $1000

Does Playing Guitar Strengthen Your Hands? Answered

9 Best Bass Guitar Plugins (And 2 Best Freebies)

Top 10 Doubler Plugins For Vocals, Guitars & More 

Top 12 Spring Reverb Guitar Pedals Available in 

Top 14 Harmonizer Guitar Pedals (Best Rated)

The 20 Best Guitar Preamp Pedals  (Best Rated)

How long does it take to learn Fingerstyle Guitar?

Top 7 Bass Guitars For Stoner, Doom & Sludge Metal 

12 Best Ample Sound VST Plugins (Guitars & More)

How to Fix Crackling & Popping Bass Guitar?

How To Use Channel Strip Plugins in Your Mix (Drums, Bass, Guitar)

How To Use Preamp Plugins? (On Guitars, Vocals, Bass & Drums)

How Loud Should My Guitar Amp Be For Recording? 6 Factors

Best Lo-Fi Guitar Effect Pedals For Unique Tone

Can I Run Vocals Through The Guitar Pedals? Answered

Why Do My Guitar Strings Smell Like Metal/Garlic/Pee?

Top 4 Limiter Pedals You Can Get (Best Guitar Limiter Pedals)

Do Electric Guitars Sound Good Unplugged?

Should I Learn 4, 5 Or 6 String Bass Guitar & Why? (Complete Guide)

Can I leave My Guitar Tuned Down a Step? Yes, But Is It Safe?

Can a 6 String Bass Be Tuned Like A Guitar?

Can You Play Two Guitars Through One Amp?

How often guitar necks need reset? Answered & Explained

Can I Play Classical Guitar On A Steel-String Guitar?

How Often Does A Guitar Need a Setup? (Acoustic, Electric, Bass)

If I Learn Acoustic Guitar Can I Play Electric Guitar?

Do Fender Guitars Appreciate In Value? (Are They Worth It?)

Top 2 Best Guitar Sidechain Compression Effect Pedals 

How to Record Electric Guitar Into Logic Pro X?

Is Electric Guitar Too Loud for an Apartment? Can Neighbors Hear it?

Top 6 Guitar Amplifiers For Prog Metal 

How To Chain Your Guitar Effects Pedals? Ultimate Guide

How To Fix Distorted Bass Guitar Sound?

Should You Put Stickers On A Bass Guitar? Does It Affect The Done?

Why Are Bass Guitars So Heavy? Answered & What You Can Do

Top 10 Guitar Pickups for Low Tunings 

Top 14 Pedals For Garage Rock (Distortion, Overdrive & Fuzz)

Is It Worth Upgrading Bass Pickups? Answered

Overdrive vs Distortion vs Fuzz: What’s The Difference?

Top 14 Looper Pedals For Bass 

Don`t copy text!
Scroll to Top