Hi! I hope someone help me!
In these days I try to restore a old AEG battery screwdriver. The screwdriver should be build in 1985. It works very well but, of course, the problem are the batteries: they are KO after many years of unuse. So I don't know if they are Ni-MH or Ni-Cd batteries. The battery pack is encapsulated in the screwdriver's handle and it's a set of two C-type batteries in series. The battery pack have 3 terminals: anode cathode and "sense" terminal which is the same cathode. The voltage of battery pack is 2.4V. The next step was open the crewdriver battery charger in order to find some clues about the type of batteries. Unfortunately I found only BA6105 IC and I don't found any datasheet but I found this thread: https://forum.allaboutcircuits.com/threads/finding-datasheets-for-hard-to-find-parts.113347/
Now, screwdrivers are energy eaters items and in 80's the Ni-MH tecnology was early born so the battery charger should be designef for Ni-Cd batteries but I'm not sure... so, someone know how to determine the type of my batteries?
Thanks!
In these days I try to restore a old AEG battery screwdriver. The screwdriver should be build in 1985. It works very well but, of course, the problem are the batteries: they are KO after many years of unuse. So I don't know if they are Ni-MH or Ni-Cd batteries. The battery pack is encapsulated in the screwdriver's handle and it's a set of two C-type batteries in series. The battery pack have 3 terminals: anode cathode and "sense" terminal which is the same cathode. The voltage of battery pack is 2.4V. The next step was open the crewdriver battery charger in order to find some clues about the type of batteries. Unfortunately I found only BA6105 IC and I don't found any datasheet but I found this thread: https://forum.allaboutcircuits.com/threads/finding-datasheets-for-hard-to-find-parts.113347/
Now, screwdrivers are energy eaters items and in 80's the Ni-MH tecnology was early born so the battery charger should be designef for Ni-Cd batteries but I'm not sure... so, someone know how to determine the type of my batteries?
Thanks!