Tennis Tutor 2 Tennis Practice Machine Battery Operated Start Price USD 199.99 Current Price USD 511.00 Time Left - Bid Count 27 Buy It Now Price USD 450.00 Reserve Price - Start Time Saturday, September 06, 2008 End Time Saturday, September 13, 2008 Location New Castle, IN See more about 'Tennis Tutor 2 Tennis Practice Machine Battery Operated' Description You Are Bidding on a used Tennis Tutor 2 with a new charger.  Haven't used it since I blew my Knee skiing.  I have a brand new charger that comes with the machine. The machine does run when you plug in the new charger to it. Battery did not charge. I put the charge r on it for 12 hours.  Aquired this some years ago belonged to my x . It has been opened not by me.  I can tell because one of the allen screws looks stripped but you can get it out using pliers. Hopper has some cracks but does not effect the performance.  I ran some balls through it this week. Everything works, Oscillator ball speed and timing.  You will need to purchase a battery or an external battery pack if you dont have power available at your court.  External pack sells for about 150.00. Internal battery price I dont know as I have not opened the Machine to see what the specifications are on the battery, nor have I had time to search manufacturers for a good price. I am sure a savy internet user can find one that meets the specs.  Some information from the manufacturer. Tennis Tutor features counter-rotatingwheel operation. Dial controls which gives you fingertip control ofball speed, trajectory, and ball feed rate(the time interval between ball throws). Ballspeed ranges from a gentle toss forchildren to world-class speed. Ball feed rateadjusts anywhere from 1-1/2 to 12 seconds. You can set Tennis Tutor to repeat shotsyou need to practice, or to oscillate anddirect shots randomly across the court. Tennis Tutor also features an exclusiveanti-jam ball feeding mechanism. Tennis Tutor is truly portable,measuring only 12 inches tallwhen the ball hopper isfolded down for transport.And with the towing handleextended, it tows just likeluggage. When you get to the court, the ball hopperopens in seconds to hold 125-150 balls, whichis more than two standard pick-up basketsfull of balls. Tennis Tutor comes standard with abuilt-in heavy duty rechargeable battery.***This battery will not hold a charge*** Butif you do want more battery life there is anoptional External Battery Pack Tennis Tutor has a built-in battery chargeindicator And of course, Tennis Tutorcomes complete with a plug-in chargingunit that fully charges the batteryovernight. SPECIFICATIONS Ball capacity 150 Balls Trajectories Groundstroke to Lob Ball feed rate 1 1/2 to 12 seconds Oscillator Built-in  Playing Time   w/standard battery  2 to 3 hours typical  Recharge Time 12 hours, typical  Dimensions (hopper closed)   Tennis Tutor 12"H x 19.5"L x 20"W       On Sep-11-08 at 07:21:17 PDT, seller added the following information:Please note that a Friend of mine suguested that some type of childrens electric car or jeep motorcycle ect may have the same battery type. This could be a very inexpensive fix for the battery not taking a charge. Place a Bid!