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| 75Plus:
Several years ago, 1987 to be specific, I designed and built a combination Ni-Cad battery charger and bench power supply. (Ni-Mh batteries were not here yet) The requirements were that it would be variable in voltage and current. This was so that a wide range of voltage and current capacity batteries could be charged. The voltage ranged from 1.2 to 15 volts and the current was from 20 ma to 1.5 amps. I wrote it up as a construction project and it was published in "73 Amateur Radio" magazine in Dec. 1987. I am showing the schematic here. If anyone is interested I can furnish additional info. Joe |
| Bernd:
Thanks Joe. That's going to come in mighty handy since I need a charger for 6 volts battries. Bernd |
| John Rudd:
--- Quote from: Bernd on January 03, 2010, 05:02:50 PM ---Thanks Joe. That's going to come in mighty handy since I need a charger for 6 volts battries. Bernd --- End quote --- Bernd...Might I interject..? what battery chemistry did you have in mind? Not all batteries are the same, I'm sure you know... :thumbup: Just tryin' to keep my fellow members alive... |
| Bernd:
Sure you may interject. They are sealed batteries. I believe they are lead acid since the note on the side says something about lead. Let me guess this charger won't work for these batteries, right? Bernd |
| 75Plus:
Over the past 20 odd years I have used this power supply to charge lead-acid, Ni-Cad, N-Mh, Li-ion and rechargeable Alkaline batteries. I have NOT, nor have I ATTEMPTED to, charge any battery that was not DESIGNED to be recharged. Joe |
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