Problem - Segway i180 with yellow fenders will not start.
Indications - Upon start up, blinking red wrench is displayed about 20 blinks. Battery charge lights appear to be working normally.
Repair Attempt 1 - Swap batteries, front to back - n/c
Repair Attempt 2 - Swap Nickel/Metal batteries for Lithium - n/c
Repair Attempt 3 - Nickel/Metals charge normally on off board charger. Swapped Lithiums back to front - n/c. Put Nickel/Metal back on the Segway i180 with yellow fenders.
Called Segway dealer, suggested Attempt 4.
Repair Attempt 4 - Take batteries off Segway. Set batteries aside for 60-90 minutes. Replaced batteries and started up Segway.
Result - Segway i180 with yellow fenders is now running normally. Left it running for an hour against the refrigerator with green smiley face
Hopped on and rode around kitchen to celebrate.