Electric forklifts have become the core handling equipment for modern warehouse, manufacturing and distribution scenarios, and the choice between lead-acid powered and lithium-ion powered models is a common decision point for fleet managers. This side-by-side comparative test is completed under fully consistent conventional working conditions, with the same rated load, same operation route, same operator skill level and same ambient temperature, to collect real and reliable duty-cycle performance data without extreme simulated working conditions.

For continuous runtime performance in a single shift, under the standard 70% of rated load common in daily warehouse operations, the lead-acid forklift can support around 6 hours of continuous pick-and-place, horizontal transportation and stacking operations after a full charge. Once the remaining power drops below 20%, the forklift needs to stop operation for supplementary charging to avoid unexpected power failure during the handling process. Under the exact same operation intensity, the lithium-ion forklift can finish the full 8-hour standard shift operation with reserved remaining power, which can support up to 1 to 1.5 hours of extra temporary operation tasks if there is unexpected surge of goods to process.

For multi-shift scenario compatibility, the lead-acid forklift usually requires 8 to 10 hours of full charging time, and it needs dedicated charging area and regular daily maintenance including electrolyte level inspection and voltage equalization. For 24-hour continuous operation scenarios, operators usually need to arrange 2 to 3 sets of spare batteries to swap to support uninterrupted duty. The lithium-ion forklift supports opportunity charging during short breaks, such as 15 to 30 minutes charging time during staff meal break, which can add enough power to support 2 to 3 hours of subsequent operation, reducing the need for frequent battery swapping and saving extra labor cost for battery management.

For long cycle service performance, after 12 months of continuous regular operation tracking, the lead-acid battery will experience gradual capacity decline, which will reduce the available continuous working time by about 15% to 20% compared with the new state, and improper daily maintenance will accelerate the capacity attenuation process. The lithium-ion forklift shows more stable performance in long-term operation, with no need for frequent regular maintenance of the battery body, the attenuation of available capacity is slower, and the overall consistency of duty cycle performance in the full service life is better. It is worth noting that neither type of power solution has absolute advantages, and fleet operators can select the most appropriate model according to their own operation schedule, maintenance team allocation and actual budget arrangement to achieve the optimal input-output effect.