DIYbanter - View Single Post - B&D Dustbuster, Spotliter battery replacement

Jim Yanik

Jeff Wisnia wrote in
et:

wrote:
Your fault may not be the battery pack,but perhaps a bad switch.

Lost me here. I flip the switch, it closes the circuit.

It opens the motor circuit and simultaneously closes the recharge
circuit. The problem with the B&D dustbuster switch is that the
recharge connection doesn't always make a proper connection so
that many times the Ni-Cads go uncharged.

My curious mind wonders why that switch has to disconnect the recharge
circuit?

Our Dustbuster doesn't do that. But it's about 15 years old and I've
changed the NiCads about three times now, using those tabbed cells from
Radio Shack. (Takes a bit of soldering though.)

Mine recharges when it's hung on its wall rack and since there's a diode
in the charging path inside it you wouldn't do anything bad if you
accidently shorted the two charging contacts on its underside with the
motor running or not.

Jeff

did you know the Dustbuster cells are of a type designed for being left on
charge all the time,24/7/365 ? Digi-Key carrys them,but DeWalt charged me
less than what it would have cost to buy just the cells.

--
Jim Yanik
jyanik
at
kua.net