All LEDs flashes red once and stop 1 second in cycle |
The battery connects incorrectly |
All LEDs flashes red twice and stop 1 second in cycle |
The charger encounters overload or short circuit |
All LEDs flashes red four times and stop 1 second in cycle |
The voltage of single cell is too high or too low |
All LEDs flashes red six times and stop 1 second in cycle |
There is a 300mv difference of voltage between battery pack |