So what batteries are out there?

[Scottes]

That doesn't look protected to me - the "disk/lump" is on the positive end. The text on that page does not say "protected" or "pcb" - and thus I have to assume it's not protected.

 

[opuscroakus]

2) "Trustfire" Chinese batteries are protected, "Ultrafire" are not.

My Ultrafire 14500's are protected.

 

[googled]

I think Dave is just randomly guessing...

http://www.dealextreme.com/search.dx/search.ultrafire protected

 

[boondongle]

PCB means protected. But just because a battery is protected, doesn't mean it's the same kind of protected as another one. There's protection from overcharging, over discharging, and short circuit, that I know about. Some protected batteries have all three, some don't.

 

[Dave Rickey]

let me get this straight... if it says PCB those are protected? I got one plain blue one like this coming. Is it protected?

No, that one is not protected.

--Dave

 

[Gesagen]

The only way to get anything close to 5V would be 4 x NiMH (1.2V each) in series. Battery chemistry determines voltage, and you can't just mix up whatever you want. Step-up/Step-down electronics on top of 3.7V/6V/7.4V is the only way to get a 5V supply without a fistful of batteries.

--Dave

I was wondering if it would be suitable to use 4 x 1.2 NiMH rechargeable 2500 Mah batteries to use as a power source. That would be close to the 5v sweet spot. Would they run down rather quick and loose power?
I got a bunch of these and wanted to try something different & safer. Would have to get a bigger mod box though.

Gesagen

 

[boondongle]

While I haven't done it myself, other modders have reported making 4x1.2v setups that worked.