low resistance atty on 5v usb passthru

[sprakkattak]

Is it safe to use LR atty on usb passthru? I use a kensington battery pack for my passthrough. I dont mind if it decreases the atty life. My concern is if this will blow my battery pack and I dont want it to explode on me. Thanks.

 

[spradling]

I've never tried 5v on a LR but it sounds like too much, I think LRs are designed to be used on 3.7v only...

 

[Firefly13]

I don't think it will blow the battery pack, but the atty won't last worth a poo.

 

[Dan1911]

As with most all batteries, LiPoly batteries will explode if overcharged, but because they contain polymer gel, LiPoly batteries will not burst into flames if crushed like lithium ion batteries are prone to do. The reason for the difference in flammability reactions between the two types of batteries is the way the lithium is suspended in the batteries. In lithium ion batteries, the lithium ions are suspended by organic solvents that are flammable. In lithium polymer batteries, the lithium is contained in a polymer gel that is not easily flammable.

Lithium polymer batteries cost more than lithium ion batteries and are quicker to lose their capacity. Yet, LiPoly batteries are lighter in weight, making them ideal as a notebook, or laptop, computer battery, as well as a battery for cell phones, personal digital assistants (PDAs), camcorders, hearing aids and digital cameras. The reason lithium polymer batteries are so lightweight is that the polymer gel packs fit into the spaces within the battery and eliminate the need for metal casing to enclose the electrodes.

My stance on batteries is: "When in doubt, dont." and my head hasn't exploded yet. I didn't see any safety claims from kensingtons website, although, I may have missed it. I would get with the company and ask them about any built in protection it may have. And if they say that the charger is protected but dont mention anything about the actual battery, I wouldn't test it myself.

I am not a battery expert in any way, shape, form, or fashion
However I will offer you my suggestion and this little quote from wisegeek.com and give you a friendly bump so that maybe someone that is a battery expert might make a suggestion.

P.S. a lr atty on anything over 4.2 volts doesn't take long at all to pop.