Yes, you are using too much end current. Yes, you are cooking them. No, you did not damage them because the time was short.
Turn the current (or voltage) down so your end current is just a couple amps. If your batteries act like mine, the capacity and voltage will come up a little bit each cycle and you can turn the charger back up on later cycles. Joe Smalley Rural Kitsap County WA Fiesta 48 volts NEDRA 48 volt street conversion record holder [EMAIL PROTECTED] ----- Original Message ----- From: "David Brandt" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, September 09, 2002 7:48 PM Subject: charging question > I was charging my new set of US-125's after the second break-in run (2.5 > miles), and like the first and second charge, it isn't coming up to the > voltage recommended by the manufacturers. As you know, the USB > recommendation is rather high. The typical recommendation (and that > endore\sed by Trojan) is 2.4 vpc, USB's is 2.583. > > So correcting for temperature, for a 114V nominal pack, I should see 136.8 > (based on 2.4 vpc)to 147.2 (based on 2.583 vpc) volts at 80 degrees. > > It made it to 138, and I caught a whiff of sulfur at that point, so I > stopped. Am I bordering on cooking them? The current was never more than > 10A, and was around 5 when I quit. > > If this is an indication of overcharging, I need to revise my list of > voltages down, but how far? I need to make sure I have this nailed before I > try to go any great distances. > > Oh, and as far as that addition to my other post (from work - had a > breaktime brainstorm), that someone asked about, it is added automatically > when I send from work. I try not to do that too often. Sorry. But since > it was addressed to the list, technically, anyone on the list is the > intended recipient. > > David Brandt > > _________________________________________________________________ > Send and receive Hotmail on your mobile device: http://mobile.msn.com >
