PI Pete

was able to plug the machine into my computer and it finally charged! Good job Minelab engineering for putting in a battery that works. the culprit may have been my USB charger.

I used another charger and another cable and it started charging so I just left it...lets hope for the best. there is no difference between the charging cable that charges the wireless audio module right! thanks PI Pete

I even bought the universal charger with 4 USB ports from Minelab and NEVER used anything but this to charge the machine. I have used it three times, I plugged it in the first night and I though it charged it fine. I had not been paying attention and today the fourth time I took it out it flashed BF. Left charging all day and green light even stays on indicating that it is fully charged but when I turn it on its flashing the battery meaning its less than 5% charged. very frustrating, going to try another charger that has greater than 2 amps. Thanks for any comments / feedback