Fault Phenomenon: Dingli GTJZ12 electric scissor lift aerial work platform after a full charge, only works for 1 hour before low voltage protection activates.

Troubleshooting Process:
– Checked battery cells: individual cells have low voltage.
– Checked battery connections: connections loose and heating.
– Checked discharge current: current normal.
– Checked battery life: battery aged and sulfated.

Root Cause: Some cells in the battery pack are aged and sulfated, causing a significant reduction in overall capacity.

Required Parts: Replace the entire battery pack.