1st...the first status of lights(led are lit for a standing 3-4sec) shows the batterys that are hooked(if 6 battery packs are in...all 6 lights will light)...then the second status(a mere flashing led...for a mere second) shows the batterys that are being charged('cause they're under the specified voltage setting)...normaly if all packs are ok...the lights should first shows the packs that are plugged in...then all go out...the ngo back to first stage to shows the packs plug in...
out of my 6 packs plugged in my batt nurse...4 stays ok at 5.2,...then i got 2 that are having a cell that is low...when i see this occur...i discharge with either a dpd or a 030...then recharge the pack for 900 sec....then put back in it...should be fine then....before racing discharge the pack with dpd(or 030)...then charge as normal
Eric