Re: Resistor value for battery charger

From: Mike (no_spam_at_comcast.net)
Date: 11/19/04 

Date: Thu, 18 Nov 2004 22:10:29 -0500

Sometimes you can get lucky by finding a parts diagram. Who makes the drill
and what model?

Are there any readable numbers/symbols on the old part?

Mike

"R Farris" <rf76309@worldnet.att.net> wrote in message
news:jAbnd.931755$Gx4.36595@bgtnsc04-news.ops.worldnet.att.net...
> Okay, I think this is a basic question...
>
> Bought an rechargable drill at a garage sale. Of course it doesn't work -
> because both batteries are discharged. Turns out the problem is with the
> battery charger. It is composed of a transformer that plugs into the wall
> and a base unit that holds the 12VDC battery.
>
> The wall unit works okay and produces 17VDC @ 400mA. The problem is with
> the base unit. When I took it apart I found a single ceramic resistor
that
> was wired in series - but it was burned beyond recognition.
>
> Okay, my question: what value of resistor do I need to buy to replace the
> burned one?
>
> rf78801x.att.net
>
>

Relevant Pages

  • Re: Resistor value for battery charger
    ... > Okay, I think this is a basic question... ... > and a base unit that holds the 12VDC battery. ... When I took it apart I found a single ceramic resistor ...
    (sci.electronics.basics)
  • Resistor value for battery charger
    ... Okay, I think this is a basic question... ... and a base unit that holds the 12VDC battery. ... When I took it apart I found a single ceramic resistor that ...
    (sci.electronics.basics)
  • Li tool warning - a really long rant Part 1
    ... OK - my favorite old drill cordless just died. ... screw holes immediately followed by driving the holes full of screws. ... I don't think I should have to replace the battery on a drill except ...
    (rec.woodworking)
  • Re: 12 drill conversion - Was: sci.electronics.misc , alt.electronics , sci.electronics.basics ,
    ... I have a 12 volt cordless drill that has no battery. ... Since a new battery sells for over $30, I had the idea of somehow hooking up a homemade 12 volt battery pack made from 10 rechargable NimH batteries. ... MAKE SURE the wire is properly secured at the drill end. ... At the other end fit a cigarette lighter plug fused at 10A and also make up a short lead with a couple of battery clips, a 10A inline fuse and a 'free' cigarette lighter socket. ...
    (sci.electronics.design)
  • Re: Li tool warning - a really long rant Part 2
    ... the performance of my $239 DeWalt compact drill driver. ... would hold a good charge in the truck for a month. ... He was using the Makita long-handled drills and would run into dead battery syndrome all too frequently. ... He also got a mechanical interval timer and installed it between his van battery and the inverter, so he could give it a twist to run the inverter for 4 hours, for instance. ...
    (rec.woodworking)