6/6/2026 at 6:16:40 PM
by zdw
6/7/2026 at 7:02:41 PM
Reminds me to a good old Youtube video: £500 Nagra battery pack is actually just around £22, lot of empty spaces and a big chunk of foam too lolHave been removed from Youtube but IA archived it https://web.archive.org/web/20160222190825/https://www.youtu...
by haunter
6/7/2026 at 5:58:49 PM
The author didn't go far enough, should have ripped out the battery holder, installed a single lifepo4 or lipo, added a USB-C charging/protection board and a low quiescent current LDO to simulate 2.7V a couple of freshly charged nimh's puts out.by 05
6/7/2026 at 6:00:26 PM
Author here, the best solution I think would be just ripping the temperature sensor from the battery pack and soldering it to the contact in the microphone instead, then you can just pop in regular rechargable batteries and it'll work. No need to add lipos to this.by MartijnBraam
6/7/2026 at 9:54:10 PM
The thermistor looks like a Semitec ###NT series, if you want the exact one.103NT H34G, I suppose?
by CarVac
6/7/2026 at 10:54:25 PM
Oh that looks incredibly similar, thanks for the tip!by MartijnBraam
6/7/2026 at 4:12:20 PM
> Conclusion> It is absolutely possible to do this, but the resulting battery pack won't be nearly as solid as even the third party packs that are available. With the amount of time required to fiddle with the connection paperclip and winding the temperature sensor leads around a tiny plastic tab it is probably not worth it to print your batteries.
by amelius
6/7/2026 at 5:29:12 PM
Which is silly because they seem to struggle with maneuvering around the little plastic tab to have the battery detected as rechargeable.by acters
6/7/2026 at 5:22:09 PM
Very common practice in music gear industry, unfortunately. I've recently bit the bullet and bought MyVolts Step Up for $20, it is literally a PD trigger worth maybe 50 cents plus a plug.by mystifyingpoi
6/7/2026 at 5:42:44 PM
Should see the shure ones. Shure SB900C is like $115. And at least last I looked I never saw any aftermarket ones.At 8 mics and 6 in-ear packs you can get a lot of alkalines.
by birdman3131
6/7/2026 at 5:55:29 PM
I'm glad most of my music gear isn't battery powered. I do have a painful amount of different camera chargers though...by MartijnBraam
6/7/2026 at 6:12:04 PM
> I do have a painful amount of different camera chargers though...It is ridiculous how many different battery packs canon makes.
by m463
6/7/2026 at 11:31:00 PM
Thanks for doing this. I don't know if this is still the case, but I looked into high end consumer headphones ($700+) about three years ago and concluded almost all of them had a bad sustainability problem.I looked at cosmetic repairability and battery replacement. All of them were impossible or near impossible to officially get non-electronic parts for. If you dig enough, you might be able to find sources for non-electronic parts.
For batteries, one or two, Focal Batys, I remember is one, had a battery swap program like Apple does. Some like Sony were quasi end-user serviceable. Some gave you like a $100-$150 credit on a new one if you sent the old one in. Bower Wilkins was the worst. If you needed repair or if your battery was dead, their response to me was, "We don't do that."
I found the whole thing hypocritical. All but one or two were based in Europe and touted sustainability commitments on their sites, but their replacement policies did not back it up.
by snapetom
6/8/2026 at 8:32:39 AM
You might like the Fairphone Fairbuds XL, with a 10/10 iFixit repairability score:by eliaspro
6/7/2026 at 9:00:05 PM
This is a common arrangement. The replaceable batteries in phones also usually have 3 or 4 terminals for a thermistor.I suspect many of those who have 3D printers may also have enough scraps of plastic lying around to be able to make something like this from; a few sheets cut and solvent-welded together would likely be stronger.
by userbinator
6/7/2026 at 6:10:24 PM
At least in the newest headset Sennheiser announced user replaceable battery, without announcing the price or if it is a standard format that you can buy everywhere or a very pricey gold-pressed latinum custom audiophile one.by AdrianB1
6/8/2026 at 5:48:50 AM
Small nit, if you're doing anything with battery packs it's worth getting a spot welder. They are super cheap now and very easy to use.by russdill
6/7/2026 at 6:16:01 PM
My AA charger detects alkalines and refuses to charge them. This must be a money grab.by MrBuddyCasino
6/7/2026 at 6:59:28 PM
Lmao. Price for the original battery pack is absurdly high. Good clone.by __natty__
6/7/2026 at 6:30:17 PM
Cool result, but just so much work for something that should be a no-brainer.My Sennheiser RS 180 still works with normal rechargeable AAA batteries (charging on the official station).
Yet another case where the newer models are just worse.
by arendtio