UPS that doesnt beep

[sathyan]

I'm looking for an UPS that doesn't beep while drawing power from its battery (or recommend a different device that will accomplish what I need)


I want to do laptop recordings some of which will be away from an outlet. While the laptop can be powered by its own battery, I need some other device to power:
Mixer: 18.5x2VAC/620mA
Mic. Pre.: 9VAC/1300mA
Sound Card: 5VDC

Monitoring will be on headphones.


Half an hour of run time would be enough.

 

[t_chance]

What mixer and pre?

There may be another alternative.

 

[sathyan]

There may be another alternative. What mixer and pre?

mixer is Yamaha MG10/2
pre is Behringer MIC100



even though you didn't ask:
notebook is IBM Thinkpad T40
microphone is Studio Projects B1
sound card is Creative Labs Audigy2 NX

 

[TexRoadkill]

What could you possibly setup and record in 30 minutes? Your best bet is a battery operated preamp.

 

[Jim Y]

Go to an outdoor leisure/camping outlet and get a battery pack/inverter. Basically a car battery with an Inverter that generates your AC voltage. The whole thing can be recharged either from a vehicle 12Volt supply (when the engine is running) or from an AC outlet. All you will have on it are some status indicators, no beeps.
BTW - They're very heavy due to the lead/acid battery.

 

[DAFFYDRUNK]

If you really wanna use a UPS, you could always buy one grab your screwdriver and get rid of the little piezo speaker. You'll void the warranty but it won't beep once you yank it out..

 

[Marquis]

If you've got a Thinkpad T40, why do you need a UPS? I mean, that thing will run off of battery for like a week. OK, that's an exaggeration of course, but it has quite a battery life.