I just wanted to know why any of the more engineering inclined people haven't tried to create or at least tech out the possibility of getting a LIon (Lithium Ion) battery to replace the E/X-mag NiCad's? I know from my experience with Lion's they're considerably lighter than a NiCad and don't suffer from the problems with memory. I know that they are a lot more expensive but with lightness and durability I haven't really figured out why someone hasn't at least tried it. Anyone else out there have any experiences trying to tinker with these at all?
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The E/X mag batteries are NiMH, not NiCAD.sigpic
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The battery you would have to use to be able to sink as much current as the emag draws would have to be too large. Li-Ion are terrible when it comes to high drain applications. Actually, all they are good at is capacity. The shelf life blows (the annode begins to disintigrate immediately upon manufacture - 1.5 years max life, usually), charging them is a pain, and the internal resistance is high.
The NiMH used in emags is pretty well suited to the task. It is slightly more expensive than NiCad, but its internal resistance is equal to or better than NiCad, and the capacity is almost twice that of similar NiCad batteries.
There are only two other chemistries which suit themselves to application in an Emag. Lithium, with roughly 5x the capacity of NiMH (iirc), would work VERY well. They are not, however, rechargeable. Original shocker batteries were lithium.
The other is lithium polymer, a hybrid between Li-Ion and something else (i forget what). The annode is supposed to be more durable, and the internal resistance low. Beyond that, i know little about them."The Fine Print: Discontinue use if your eyeballs suddenly get way smaller."Comment
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