what is the diffrence between Nimh baterry and Nicd recharge able baterry??????

Answer 1

nickel-cadmium battery or NiCd is generally a low voltage and high current application battery and the nickel metal hydride battery or NiMH is a battery that has a hydrogen-absorbing alloy for the anode instead of cadmium. A NiMH battery can have two to three times the capacity of an equivalent size NiCd and the memory effect is not as significant. Generally dependent on application you might also want to consider the Lithium-ion or Li-ion battery as well. Its all about horses for courses here.

Answer 2

The main difference between the two is that NiMH battery (the newer technology of the two) offers higher energy density than NiCads. In other words, the capacity of a NiMH is approximately twice the capacity of its NiCad counterpart. What this means is for you is increased run-time from the battery with no additional bulk or weight. NiMH also offers another major advantage: NiCad batteries tend to suffer from what is called the "memory effect". NiMH batteries are less prone to develop this problem and thus require less maintenance and conditioning. NiMH batteries are also environmentally friendlier than NiCad batteries since they do not contain heavy metals (which present serious landfill problems). Note: Not all devices can accept both NiCad or NiMH batteries.

Answer 3

Nimh : Are Lighter Weight,Charge quicker and Have NO Memory Effect(Thus can be charged as and when Needed!),and are far more reliable in Colder temperatures!

Ni-Cad: Are Heavier,Charge more slowly,have a Memory Effect(Therefore you have to dis-charge the battery before you can get a Full Charge into it).And they are more prone to fail in Cold Temperatures!!