I am totally new to this site, and I hope I am not posting to the wrong section.
I have a very old and basic Tamiya TL-01, and I am trying to learn the ropes of driving, etc.
I had this car for 7 years, and 2 1300Mah batteries with it, and a very old 1A/h charger.
I invested today in a new Robbe Power Peak 400 charger, which can do 5 Amps per hour, and 2 3300 mAh batteries. This charger is a 12V charger, and I have my Power Supply for this which drives it.
When I connected the battery to the charger, it soon started on with a buzzing sound coming from the end of the battery, which is a standard Tamiya stile (tamiya connector on it) 6 cell Nimh battery. I quickly removed the new battery, and connected the old one, as if I really have to kill something, it should be the old crappy battery. It again started making the buzzing sound. I am really puzzled and dont know what to do/think. Also, after 20 seconds the buzzing sound stops for 2 seconds, then starts again.
Addition to this, I measured the Volt input output before and after the charger, and I came up with interesting figures.
When battery buzzes, the following is measured:
Between PS and Charger: 11.83 Volt
Between Charger and Battery: 8.15 Volt
When battery is quiet, the following is measured:
Between PS and Charger: 12.10 Volt
Between Charger and Battery: 8.10 Volt
My question is, should I go ahead charging my batteris and nevermind about the buzzing sound, or is there anything wrong with either my charger or Power Supply? The other charger charges nicely with 1A without any sound.
Thanks for any help,