wb8foz@mthvax.cs.miami.edu (David Lesher) (04/13/91)
I'm building my own version of the ICOM rapid/slow charger for my 02 batteries, such as BP-7's,-8's and others. Does anyone know the charge currents that a BC-35 supplies for various batteries? (The sooner the better - I want to get this critter done for Dayton.) -- A host is a host from coast to coast.....wb8foz@mthvax.cs.miami.edu & no one will talk to a host that's close............(305) 255-RTFM Unless the host (that isn't close)......................pob 570-335 is busy, hung or dead....................................33257-0335
youngqd@jacobs.CS.ORST.EDU (Dean Youngquist) (04/13/91)
In article <1991Apr12.214209.7575@mthvax.cs.miami.edu> wb8foz@mthvax.cs.miami.edu (David Lesher) writes: >I'm building my own version of the ICOM rapid/slow charger for my 02 >batteries, such as BP-7's,-8's and others. Ni-Cad Batteries are usually charged at 10% of the amp hour rating for 14 - 16 hours. I assume that means 1/3 of the charge energy is lost, 2/3 goes to the battery. Example 700 maH battery charges at 70 ma for 15 hours, at which time it is fully charged. If you want to charge it in 4 hours: 70 x (16/4) = 280 ma or .280 Amps. If you dare charge it in 1 hour: 70 x 16 = 1120 ma = 1.120 Amps. It is my understanding that battery life is significantly shortened as the charge rate is increased past the 16 hour charge rate.