Tired of AA's...

[J57ltr]

OK, date with the wife got in the way of testing, but here are my results. This is in the TQ3 I have, have to wait till John comes back over to see what a TQ2 will do, but I don't expect any difference except for normal manufacturing tolerances.

At 8.03V the light starts to flash.
At 4.2V it starts to dim while flashing.
At 3.353V it's really dim and still flashing.
At anything under 3.25V it completely shuts off.

To test this I had to use an old Protoboard with built in power supply 0-15V. The meter I used is a Fluke 112. I did both rising and falling voltage to test hysteresis 3 times.

Jeff

do these cell phone battery not need to be balanced?

[J57ltr]

They should be they are just like any other Lo-po/Lo-ion, and now they are made into a pack, and they came from different devices that probably had different charge/discharge cycles. The ones I am using are from the same laptop pack and they are out of sink by up to a 1/4V, that's why I put a balance plug on mine. I also have a ton (about 50) of the Fat/Long aa size Li/ions and they act the same way in packs. No 2 cells are alike.

Jeff

[zeropointbug]

Okay, I have had my DX2.0 running for 16 hours now, and the voltage is still at 12.7volts... there must be a voltage regulator in there.

[zeropointbug]

Whow, right after I typed that out, the voltage fell to 12.6volts.

[J57ltr]

I wonder if it just sits idle unless the reciever is also on, kinda like a sleep mode?

Jeff

[zeropointbug]

No, I don't think it does... when I used AA alkalines, you turn the switch on, then after a 2 second pause, the LED on the back lights up and the voltage suddenly drops. It must draw a good amount of power.