I use my JTV-59 powered by my POD X3L pedal via the VDI cable usually, but wanted to use it with the battery with another amp, so I put the battery in it and it showed 2 power LED's on the back of the JTV with the battery test.

I decided to bring it up to full charge, so I pulled out the battery charger and put the battery in it and plugged it in, but the charger cradle LED kept blinking. I pulled out the battery charger instruction sheet and it describes blink codes. I thought at first the constant blink meant bad battery, but the bad battery indication is On (1/4 sec) Off (1/4 sec) continuously or about 2 flashes per second. What I was observing was about a slow 1 second On/Off flash.

I measured the battery voltage prior to trying to charge it and it was about 7.1 volts.I measured the power module DC plug voltage and and found it to be about 12 volts, as expected per it's label. I could not measure the charger cradle voltage across it's contacts, as it has an apparent shorting contact arrangement. I put the battery in it and left it for a few hours, and it continued flashing slowly. Never went into the LED on constantly state indicating the charge mode.  I pulled the battery out of the charger after a few hours and measured the terminal voltages and still found about 7.1 volts on it - it's label states 7.4 volts (I assume for full charge).

I took the battery out of the cradle, and the LED kept flashing slowly -- so it does not matter whether the battery is in the charger or not, the LED continues to slowly flash, and the charge indication in the guitar did not increase, nor did the measured voltage of the battery itself.

The upshot here is, I believe the charging cradle is defective, and would like it replaced. I received my JTV-59 on May 5, returned it for repair -- had the switching issue found to be excess flux on a solder joint and recieved it back in good working order. I've been using it on gigs -- five so far with no problems. Love the guitar, just need a replacement charging cradle for the battery, now. I called the customer service line and sat on hold for 35 - 40 minutes -- pretty sure my call went over quitting time 5 pm PDT, so will try again, but thought I'd try parallel avenues here. Please, Line6 guys pick up on this question and issue me a support ticket, so we can get the ball rolling. This should be a warranty replacement. Doubt that there is a fix for this other than a replacement cradle. You have my user name from this entry.

Thanks,

Dave