LiFePO4 packs for counterbalance, reach and pallet trucks, from 24V to 80V and 200 to 700Ah. Each pack is sized to the lift and hydraulic current of the truck, with opportunity charging and CAN communication.
Start from the truck, not the kWh figure: voltage, compartment dimensions, counterweight and the current draw of the lift and hydraulic pumps. A pack that is undersized on current will derate by the afternoon shift even when the capacity looks correct on paper.
Then decide the charging pattern. Opportunity charging needs a BMS and charger that accept partial cycles, while a single-shift operation can usually stay with one full charge per day. Both are available, but they change the cell and BMS selection.