The main differences between NiMH and NiCad cells are:
NiCad:
- designed to deliver high currents for a relatively short time (typically
used in R/C car models)
- have the disadvantage of the so called memory effect (they need to be
discharged completely [10%] and then recharged)
NiMh:
- designed tto deliver low currents over a longer time
- they do not have such a distinctive memory effect
So in principle NiMh would better fit to the newt needs.
Rechargeable alkaline would definitely need an external charger, because
they have completely different charging characteristics.
There are two types of Lithium cells: rechargeable and not rechargeable.
But for charging Li Ion cells you need a special charger, because they have
complete different charging characteristics.
The best choice would be a Li Ion pack with external charger.
Johannes
> -----Original Message-----
> From: newtontalk-bounce_at_newtontalk.net
> [mailto:newtontalk-bounce_at_newtontalk.net]On Behalf Of Rui Curveira
> Sent: Thursday, February 21, 2002 3:02 PM
> To: newtontalk_at_newtontalk.net
> Subject: Re: [NTLK] Re MP130 Batteries
>
>
>
> I am assuming you can use the NiMH batteries in an MP100 as well?
> I can't see
> why there would be any problem. What about using rechargeable alkaline
> batteries? Is there any disadvantage to those VS NiMH? They seem less
> expensive.
> Before I bought a rechargeable battery pack for the 2100, I used lithium
> batteries. They lasted about four times longer than regular
> alkalines (and cost
> about 3 times a much) but they also weigh next to nothing. It was
> amazing how
> much lighter my Newt was with lithium. Too bad you can't recharge
> those! Or can
> you?
> Rui
>
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