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At the very least using the wrong charger on a battery
Posted by Bruno1949 on November 25th, 2008 08:55 AM
In reply to thanks, bruno,,, never knew that by yesitsconcrete on November 24th, 2008 07:25 PM [Go to top of thread]
1 of 1 people found this post helpful
will only give you a partial charge and a shorter battery life. Worst case is having the battery explode or setting the charger on fire. I've had a charger melt when the grandson put the wrong batteries in one of my chargers.
NICAD batteries charge at a set rate, about 1/10th their discharge rating, but their actual charge can only be measured if the charge current is shut off momentarly and the actual voltage is checked. They are charged when the voltage is correct. It takes a special circuit to do that. NIMH batteries are charged differently and they are considered charged when the current drops to a certain level. The two types of batteries and chargers are incompatible.
NIMH batteries don't get a 'memory' the way NICAD batteries did, but they also have a lower current they can deliver and they can only be recharged a limited number of times. Either battery has a normal life expectancy of a couple of years max. High use batteries might last a year. Was this post helpful? Yes: or No:
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