"no measureable memory effect" - this means that the level that you charged it to prevously does not "Set the Bar" (set the maximum level of charge the battery will hold the next time you charge it)
a NiMH battery can have two to three times the capacity of an equivalent size NiCd and "the memory effect is not as significant"
Once noticeable dimming or slowing of the device is noticed, it should be turned off immediately to avoid polarity reversal. (a single battery can suffer from a polarity reversal if it is completely drained but the other battery is still operational)
NiMH batteries provide the same voltage as NiCd batteries. However, they have at least 30% more talk time than NiCd batteries and take approximately 20% longer to charge. First several times that you charge your new Nickel Metal Hydride battery, trickle charge (slow charge) it, this will condition the battery. Unlike Nickel Cadmium, the Nickel Metal Hydride battery can withstand random charging. The Nickel Metal battery seems to have a shorter life cycle than the Nickel Cadmium (most common type) battery. These batteries are sometimes twice as expensive as their Nickel Cadmium counterparts. Avoid overheating, heat is a Nickel Metal Hydride battery's worst enemy.
