FAO DIY or light fundies. Light with mind of it's own.

cooldad

I've just got a 2nd Ultrafire 502B XML-T6. 3 brightness modes plus 2 flashing.
Came with 2 batteries (blue Ultrafire 2400 mAh). With one it stays on high for a short while, then drops to medium power. Cycles through the modes fine until it gets back to high, then drops to medium after about 10 seconds.
With the other battery it drops to low in a second or two, and only manages one flashing mode.
Got it from China.

My original one came from a UK seller, with one battery (red though) and works fine. I can't test combinations of old and new as it's being used by my son.

As the new torch seems to have all of it's modes, I can only assume it's the batteries causing the problems.

Is this possible?

I'm not terribly fussed as the new one was free, but am confused.

stubs

Sounds like battery. I have a 2 year old lithium battery pack that wont handle high power for more than about 30 secs before it automatically drops the light onto a low get you home setting but will happily work for 2 hours on the medium setting and an unknown length of time on flash.

cooldad

Torches with brains. Hard keeping up with technology. Sometimes I feel so old.

cooldad

It looks like it's the batteries. Works fine with a 'real' one in. Looking closely seems as if the batteries are fake - they don't have Ultrafire etched on the negative terminal, which the real one has.
Seems as if the Chinese are now pirating cheap Chinese products as well.

stubs

What happens when the Chinese start pirating the pirates which were pirated from the original rip off. Probably end up with a match and a candle.