What would you pay for a Tennis Tutor Prolite with a dead battery?

Discussion in 'Other Equipment' started by dxdgenert, Aug 1, 2012.

  1. dxdgenert

    dxdgenert New User

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    What would you pay for a Tennis Tutor Prolite with a dead battery? I have the machine and only paid $220 for it but wasn't told about the dead battery. The seller will refund the full price but I'm not sure if I should just eat the cost of a replacement battery. What are the odds of finding another Prolite for less than $270 with a new battery? What would you do?
     
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  2. beernutz

    beernutz Hall of Fame

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  3. dxdgenert

    dxdgenert New User

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    Yes, wheels need to be cleaned (there are a little slick) but it will fire balls with decent pace when the charger is plugged into the unit (my Yellow Labrador LOVED it). Once unplugged, the motors die. The light shows green, full charge, and has been charging for over 26 hours. I have no idea how the battery was maintained or charged by the previous user. My guess is that it sat for some time without being used and/or charged.

    Thanks for the batteryspec,com heads up. Sports Tutor wants $68 for a replacement. Even with shipping the price is only $29 from batteryspec.com Might be worth it for a total price of $249???
     
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  4. dman72

    dman72 Hall of Fame

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    I think it's worth it if you're sure it works. I paid $200 for an original TT...I had to put another $200 or so into it in addition to a bunch of free parts from TT before it finally works. Since then it's worked like a charm.
     
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  5. Chas Tennis

    Chas Tennis Hall of Fame

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    That sounds unusual if you are using an original TT charger. I would expect that the original charger is a trickle charger and should not have enough current output to drive the motors. ? Are you using a car battery charger?

    You might first try cleaning the battery terminals just in case the charger connection is improving a dirty battery connection.
     
    Last edited: Aug 2, 2012
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  6. tennis4

    tennis4 Rookie

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    Tennis Tutor Prolite is $800 brand new. A battery may cost $20-$30. I think it is well worth the price for $220! Once you open the top, you should be able to replace the battery with little effort.

    Plus, Sports Tutor's customer service is very good. Go for it!

     
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  7. dak95_00

    dak95_00 Professional

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    It is not unusual for a battery that hasn't been charged to die and never hold a charge again. It'll also show the green light because these lead acid batteries have a memory. It thinks it's fully charged and it is. It just is fully dead.

    If you don't have the 'smart charger', go ahead and buy from battery spec also. I did. It makes charging these things mindless; just plug it in and forget about it. If not, you'll have to unplug from time to time and fully charge and guess, etc.

    I think you still have gotten a good deal. If the previous owner is showing remorse, just ask them for the $50 it'll cost for the new battery, charger, and time spent. It is very easy to replace the battery on the pro lite aka jr model. It isn't as easy on the other TT models.

    You know it works because you are getting some action with it plugged in.

    When it is fully operational w/ the new battery, you'd easily be able to sell it for $350-$450 on that auction site or in many local Clist ads.
     
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  8. beernutz

    beernutz Hall of Fame

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    Sounds like a pretty good deal to me. A friend's let me borrow his Prolite for about a month before I bought my SP Star and it is a very solid, no frills ball machine. The only thing I didn't like was the ball 'hopper' because a solid hit on one of those fold up panels seemed like it could possibly damage it. Otherwise it was a great and compact machine.

    Also, I replaced my battery recently and since batteryspec didn't have the one I needed I searched around and eventually found it at a site called batterysharks.com. What I found was that there was a very wide range of prices for what appeared to be the exact same SLA battery so it pays to shop around.
     
    Last edited: Aug 2, 2012
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  9. dxdgenert

    dxdgenert New User

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    Looks like the seller is being a completely dishonest crook. So much for taking someone at their word. Anyhow, the seller refuses any sort of partial refund but I may have a local store that has a battery in stock for $30. Quicker than BatterySpec.com and I can inquire about a smart charger, as well. I could get a full refund but it seems like the Prolite (Made in 2008 based on serial number) for $250 is still a decent deal. If I decide it isn't for me, I might even still make a few bucks on the deal?
     
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  10. tennis_ocd

    tennis_ocd Hall of Fame

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    It's a battery. In your first post he was willing to cancel the deal; a 100% money back guarantee. Sounds fair to me. Lead acid batteries can be expected to be dead after a year or two of sitting idle. Used prolites go for 2x what you paid.
     
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  11. tennis4

    tennis4 Rookie

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    Smart charger sometimes is called "2-stage" charger. I get mine from a m a z o n for around $15.00. It has two terminals built in so you can hook up the wire and jack. The jack is phono size N if I am not mistaken.


     
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  12. dxdgenert

    dxdgenert New User

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    Can you send me a link. I have been searching but can't seem to find the correct tip.
     
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  13. dxdgenert

    dxdgenert New User

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    Quick version: Seller sold the unit on Craig's List as 100% functioning. When I arrived at the meeting spot I asked about battery condition and was told it was still very "robust" and worked perfectly. However, the unit would not power up and the seller claimed she forgot to charge it after the last use. I reluctantly agreed to buy for $220. I get the unit home and it was completely dead as described. Seller said she would refund money but was very secretive about when and where a return could be done. She claimed that I never asked about the condition nor did I ask to try out the unit.. Both of those were absolute lies, obviously. After two days of back and forth, I decided to buy another battery for $25 from Batteries Plus. I still don't have a "smart" charger but I'm $245 into the unit.

    Here are photos of the original battery, can you say OVERCHARGED? She must have left it on the charger for a month to cause the case to split like this...

    [​IMG] [​IMG]

    Oh well, lesson learned. If anyone knows of a way to get a smart charger with the correct tip for less than $50, please let me know. Also, how do I go about cleaning the throwing wheels so that I can get this thing in peak condition?
     
    Last edited: Aug 2, 2012
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  14. tennis4

    tennis4 Rookie

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    Here is the link to the charger: http://www.amazon.com/D1761-Sealed-...12&sr=8-27&keywords=two+stage+battery+charger

    If TW blocks the detail, just search for "UPG D1761". Or you can get D1730. D1730 is 500 ma while 1A for D1761. I have both, they work fine.

    You then need the "Coaxial power connector". Mine (Tennis Tutor 4) is Size N. You can get one from Radio Shack for less than $4.00 a piece.


     
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  15. Chas Tennis

    Chas Tennis Hall of Fame

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    discharged batteries freeze at higher temperatures

    An uncharged battery will freeze at a lower temperature. Probably the battery was left in a discharged state in an unheated garage over the winter.
     
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  16. dxdgenert

    dxdgenert New User

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    Thanks for the link. How does the coax power connector attach to the charger. Do you have to solder and shrink wrap?
     
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  17. tennis4

    tennis4 Rookie

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    Yes, that's how I did mine.

    You got a charger from the seller too? If you don't plan to use that charger, you can cut the wire and connect it to the Dual Stage Charger. Make sure you connect the plus / common correctly.

     
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  18. dxdgenert

    dxdgenert New User

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    Good point... How do I ensure this? Will the current adapter tell if the sleeve or tip is hot/ground?
     
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  19. tennis4

    tennis4 Rookie

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    The sleeve is connected to the ground. How to identify which wire is the sleeve after you cut it loose from the existing adapter ... I use the amp meter... or you can use flashlight bulb + a battery. ? You are going to be fine!

     
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  20. dxdgenert

    dxdgenert New User

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    Got it. Picked up a 12v 500mA "smart" float charger at Harbor Freight for $10 and the N-Size coaxial power connector from Radio Shack for $2. I have soldering supplies (I work on electric guitars) so I can "build" a Tennis Tutor smart charger for $12, compare that to the $68 they want and you can see what an up-charge they have! Tomorrow, I'll post pictures and a step-by-step guide for others in the future. Thanks for all of the help!
     
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