Hey guys, just need a bit of advice, recently sold my ztz-99 to somebody who just received it and says everything works except for forward or reverse....everything worked fine before I shipped it so I'm a little baffled. It's basically stock with the exception of adding a deans connector and a "Komodo" ATRC circuit. I can also tell you that I had been running a Tenergy 5000mah NiMh pack/w deans (that I kept). l sent him the original battery and slow charger(which I have never used) along with all the original materilas that came with it. I'm suspecting the battery that came with the tank is garbage and he should get a peak charger and a quality battery pack to solve the problem...Any thoughts? Also just curious as to how long it takes for the OEM slow charger to charge the OEM battery(1700MAH), I have no clue as I never use them?....thanks