Start with the delivery duty cycle
A chemistry comparison should start with the work each vehicle must complete. Map route distance, payload, road conditions, operating hours, return windows, rider handling and the expected number of exchanges. These inputs describe the battery duty cycle more clearly than a chemistry label alone.
Separate the normal day from the demanding day. A fleet may see different requirements during peak delivery periods, seasonal weather, longer routes or temporary detours. The selected battery and swap process need to be assessed against the conditions that actually govern service availability.
Confirm the vehicle and station interface
Before considering a change of battery chemistry, confirm the complete physical and electrical interface: nominal voltage range, current limits, connector, dimensions, mounting, battery-management communication and charging control. A similar capacity label does not confirm that a pack will work safely with a vehicle or a swapping cabinet.
Ask the supplier to identify the approved vehicle and station combinations, required firmware or communications settings, and the validation steps for the intended deployment. Final compatibility should be demonstrated with the actual vehicle, battery and cabinet configuration.
Compare usable service, not just a headline figure
For fleet planning, the useful question is whether a battery can support the required route and exchange schedule within the operating limits of the completed system. Review the applicable energy definition, permitted discharge window, power demand, recharge opportunity and reserve policy on the same basis for every option.
Request the assumptions behind each figure. They should state the test conditions, temperature range, loading profile, state-of-charge window and configuration to which the value applies. This prevents a procurement comparison from mixing figures that describe different conditions.
Model charging and the battery pool together
The battery pack, charging schedule and spare pool form one operating system. Map when packs return, when they need to be ready again, how many can charge simultaneously and what electrical input is available at each location. A chemistry choice cannot resolve a station plan that lacks enough time or site capacity to recharge its returned packs.
Test the busiest realistic period. Track packs in service, packs waiting to charge, ready packs and packs removed for inspection. The result can reveal whether the next decision is a different battery pool, a revised charging plan, more station capacity or a change in route scheduling.
Include handling, service and exception processes
Delivery fleets should evaluate how the pack will be exchanged, inspected, stored, transported and removed from service. Define the process for a damaged enclosure, an incompatible return, a communication fault, an unusual temperature alert or a battery that cannot be released by the cabinet.
Assign operating ownership before rollout. Riders, station staff, fleet managers and service teams need clear responsibilities for identity checks, alarm escalation, safe isolation and record keeping. A strong exception process is as important as the normal swap sequence.
Use a controlled validation plan before scaling
Run a representative pilot with the selected vehicle, battery, cabinet and route profile. Record the agreed operating inputs, exchange pattern, charging completion, ready-pack availability, service events and any compatibility issues. Review the results with the supplier and fleet team before expanding the network.
A useful request for proposal includes the vehicle specification, route and shift data, station electrical information, required interfaces, deployment environment and target service level. Ask suppliers to state their assumptions, exclusions and validation responsibilities so that LFP and NMC options can be assessed on a comparable project basis.