richidoo;157191 Wrote: > At 1A+ load, they would sag below 5V even with large cells. Figure 1 > V/cell in operation, so 5V batt would be right, but then regulator > might be needed when batt is fresh charged. NiCad and NiMH would be > quieter than lead acid. They will self discharge much faster than lead > acid though. Cells that will provide high current peaks quickly will > self discharge more quickly. > > Optima makes a spiral lead acid battery that has a higher density and > discharge than a plate batt. It might be less chemical noise for given > discharge rate. Plus it is totally sealed, safer for indoor use. They > make a 6V version. > > LiPO cells are 3.6V nominal, but they hold voltage flatter than the > other rechargeables, but safety is more of a concern because they will > blow up if overcharged. I wonder if SB will start/run at that low > voltage? > Rich
I have learned most of what i was looking for in this and one other thread. I never expected to hear about noise in a battery. I had bought a 6v 12ah sealed gel lead acid battery that we use for back-up for fire alarms etc. I could add another and use 12v and build the regulator. Are you familiar with this type of battery? Any advice will be appreciated. -- dancemanster ------------------------------------------------------------------------ dancemanster's Profile: http://forums.slimdevices.com/member.php?userid=13530 View this thread: http://forums.slimdevices.com/showthread.php?t=29633 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
