Cargo batteries with larger capacity are especially suitable for cargo bikes and special vehicles. Transporting loads that are far greater in weight and size than the usual transport items on two-wheelers places special demands on the bike and individual components. This is especially true for the battery. If a classic installation in the bicycle is not mandatory, large capacities with more than 1.5 kW can be achieved with the cargo battery from BMZ. BMZ ensures a stable mounting with its own aluminum Stranggus C-profile. A Twin Core (2 batteries in parallel) is possible by means of a switch. The battery has a diffusion-open housing and an intelligent charger for different configurations with 7S-14S. UART and CAN are possible as protocol. The ergonomic housing and handle have been improved. The Cargo battery also has an improved lock mechanism and is backwards compatible with the previous Cargo batteries.