Rechargeable batteries in active basses?

[kiat]

Hi,

 

I go through batteries a lot (yes, I take out my cable when not playing) and am thinking about putting a rechargeable battery in and carefully routing an approriate USB-C extension cable through the body with the socket tidy and flush with the bass surfece, intending to simply plug a powered USB-C into the socket. It would be handy to simply and fully charge the battery before each gig without the faceplate screw dance everytime.  I'd read before somewhere that for some the electronics within these USB-C chargeable 9V batteries can interfere with the active electronics. 

 

Has anyone tried this?

The bass I'm thinking of doing this to is a Lakland JO5 with a East J-Tone (Volume / Blend / Tone).  It's my main gigging bass so I'm being careful.

 

 

 

[Stub Mandrel]

I tried some in my Sire (as it uses two) but the high frequency noise from them was intolerable. 

[Geek99]

Why the screwdriver issue? Why not simply change the battery holder for one you can open easily without tools? That’s a whole lot easier 

Click

 

I’ve had my sire 9 months and I’ve changed batteries once - why make your life hard doing routing ? Sire has these x 2

Edited 4 hours ago by Geek99

[Jerry C]

Don't do it. USB-rechargeables have built-in electronics that make a lot of audio-band noise. A decent onboard bass preamp should last at least some months, if not a year or so, on a good battery if you turn it off when not playing. An alkaline 9V battery has a capacity of some 500mAh and a decent preamp should draw no more than 1 or 2 mA. That's hundreds of hours of play time.