Originally Posted by
MrMetric
Yeah... So, you have stumbled onto something that I'm not sure I can, or want to, answer.... I've also read that using anything other than NiCD will damage the circuitry. However, I can categorically confirm that in two cases, I've found NiHM in the machines.
First, there is my own machine. The previous owner (original owner) related a conversation that he had with Mitsubishi. He asked about using a larger battery and the service rep confirmed that he could. Now, when I looked at the battery, it was an NiMH. I am assuming the PO confirmed what he could use, but whatever the case may be, I can categorically state that the battery charges fine.
The second case is that I wanted a second battery setup so that I can ping pong back and forth (home machine... don't use it often enough to guarantee a good charge)... Well, that battery was the original type (Energy+ V200H-3ME, 3.6V 200maH) but, lo and behold, in microscopic print, I can see that it too is an NiMH. Now, I can't say if the system from which the battery was pulled was ever damaged.
What I can say is that the charging curves for NiCD and NiMH are very similar and I personally believe that they should behave the same. Generally speaking, they are treated as interchangeable items. But that is just me. I absolutely do not want to advise you on the matter other than to say that you should use a larger battery if you want to have the machine last more than about 45 days or so (on a full charge). Try calling the Mitsubishi guys for advice (and post here, please). They are quite nice. I never have been able to determine if you are in the States, though, so I won't give you there phone number because it might be wrong.
Anyhow, that's about all I can say on the matter other than that there is a super capacitor which will give you a certain amount of time to change the battery before losing memory... that is assuming that the cap is in good condition. Don't change the battery with the power on. That might damage the machine.