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Ryobi Cordless Drill Charger

Discussion in 'Electronic Repair' started by Beloved Leader, May 8, 2007.

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  1. I saw a Ryobi tool case thrown out during the city's special pickup
    last Friday night. It was hefty, so I took it home.

    When I finally opened it up today, I found a Ryobi HP62 6.0 volt
    cordless drill inside. It looked absolutely brand new. I mean, really,
    it looks as if it has never been used at all. All the bits save one
    were there. I figured, "let's charge it up." That's when I noticed
    that the wall wart in the drill case was from an AT&T answering
    machine or cordless phone. The AT&T charger has a 9vac output. Hmmmm,
    I wonder if that's why the drill got thrown out.

    After some searching, I found a Canon 6 vdc, 300 ma charger, probably
    from an inkjet printer, that charges the battery pack, but not any too

    The proper charger for the Ryobi is a Ryobi-Ridgid part 7221001. I
    don't know what its output voltage or current is. If anyone has one of
    these chargers lying around, I'd like to know the specs on it. I'm
    sure that in my massive collection of wall warts I have one that's
    close enough.

  2. Here's what I do:

    Put a moving coil milliammeter (multimeter) in series with an adjustable
    wall wart. Set the polarity for the highest current on the lowest voltage
    setting, then up the voltage until the current is what I consider
    reasonable. Let it charge overnight, adjusting the volts up as needed.
    Generally this will give you a full charge and will give you an idea as to
    what voltage charger to use.
  3. Dave

    Dave Guest

    Sounds like it would make for a long, sleepless night.

    Given the OP's implied level of experience, advising him to "up the voltage
    until the current is what I consider reasonable" is about as useful to him
    in his situation as a sack of hammers.

    Unless he buys your book "Reasonable currents for all situations, Vol. 3,
    2006 (Ed.)".
  4. John E.

    John E. Guest

    I saw a Ryobi tool case thrown out during the city's special pickup
    I cross-posted your request to a few woodworking and home-repair groups.
    Maybe someone who has a Ryobi 6-volt drill can look at the "brick" and give
    you the specs off it.

    Good luck,
  5. James Sweet

    James Sweet Guest

    NiCD batteries are pretty forgiving. What I would do is use a 12V or so wall
    wart and put a resistor in series if necessary to limit the current. IIRC if
    you take the ma/hr rating of the cells and divide by 10, you get
    approximately the charge current you want. It's not too critical though,
    slower charge is easier on the batteries but takes longer.
  6. It's a practical method. Failing that, he needs to buy the right charger.
  7. Jim Yanik

    Jim Yanik Guest

    Ryobi's use a really simple charger,just a wall-wart with a diode
    rectifier,I suspect.The transformer probably limits the charging current
    Ryobi's are the cheapest cordless drill/drivers around.
  8. Sofie

    Sofie Guest

    - - - - - - - -

    Not the only one, I suspect thata Skill and Black and Decker may share that
    title too.
    Daniel Sofie
    Electronics Supply & Repair
  9. John E. wrote:
    [quoting me][end quoting me]
    Great. Thanks for that.
  10. Dave

    Dave Guest

    I know what you mean, the smart-ass in me had to reply to your post. My
    first attempt which I did not send advised him to phone Ryobi and get either
    the info or the location of a store where he could buy the proper charger.

  11. I've been given or purchased cheap many an item missing its charger. This is
    the method I use. I usually aim for 1 or 2 hundred mA of charge current.
  12. Before posting at s.e.r., I Googled for the item. It is sold at a few
    online tool dealers. None of the few links I checked gave a view of
    the charger, and none had any details regarding output current. I
    figure if I called Ryobi, the person answering the phone would know
    only how much extra the shipping would cost, and how to take credit
    card information. Home Depot is a five-mile drive. The person there
    would liklley not know how to read the information on the charger.
    Thus it seemed logical to ask here, in the belief that someone at
    s.e.r. actually owned one of these drills and could quickly provide
    the answer.

  13. So, you've never seen a Coleman? They get my vote for the worst ever

    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida

  14. There is a six volt Ryobi drill/W charger on Ebay right now.


    If its the same tool, email the seller to ask the seller what the
    charger is rated at. I don't have an Ebay account, so I can't contact
    the seller.

    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
  15. Jim Yanik

    Jim Yanik Guest

    I wouldn't even know where to buy a Coleman. ;-)

    a Coleman camping lantern;yes,drill/driver;no.
  16. Ross Herbert

    Ross Herbert Guest

    A quick Google search for the HP62 gives the parts listing and reveals the
    correct charger part number is 7224301. A search on the M&D Mowers
    website for this part shows
    that it is 9V @ 200mA and costs $4.38.

  17. I didn't buy them, they were given to me. Shoddy workmanship, and low
    quality, even for China. I got two drills, a case, a flashlight, a
    buffer, seven 18 V batteries and six chargers. One drill had a wire to
    the trigger than had never ben shoved into the slot, and the other had
    the shaft that held the chuck sheared off.

    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
  18. Ross Herbert

    Ross Herbert Guest

    Ryobi Tradeline (Japanese Ryobi) tools used to be the best value for
    money power tools around - that is until Techtronic Industries in
    China bought the Ryobi power tools business which supplies
    US/Europe/Australasia from Ryobi in Japan. When Ryobi power tools
    started coming from the China factories of TTI their quality went down
    the tube.

    LOok at the brands now owned by TTI here and weep.

    Note that TTI also manufacture power tools for many other brands so it
    is possible that they even make for Coleman.

    If you have any of the old original manufacturer items with the TTI
    brands then it might pay to fix them rather than buy a new replacement
    of the same brand.
  19. Ross Herbert

    Ross Herbert Guest

    Sorry Jim, I didn't mean to snip your post and then attribute my
    comments to you.

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