Custom 72V 52Ah NCM Battery Pack

A 72V 52Ah ternary lithium pack for electric construction vehicles, marine propulsion and other heavy mobile equipment; packs at this voltage also serve larger golf and utility carts. It carries 3.74 kWh of usable energy and delivers 20A continuous, a 0.38C rating. This is a steady-load design rather than a high-rate traction pack.

Charging at 10A brings it to full in roughly 6 hours. The operating window is -20~60°C on discharge and 0~45°C on charge. The pack measures 430 x 150 x 200 mm and weighs 22 kg.

Where it sits in the range

Within our 72V range this sits between the 45Ah and 55Ah builds. If your runtime target is tighter than expected once we model the duty cycle, the 55Ah configuration is the usual next step; if weight or envelope is the binding constraint, the 45Ah build is lighter.

What we customise

We design to the machine: mounting interface, envelope, connector and capacity. Communication over CAN or RS485 covers integration with vehicle controllers, with Bluetooth for local checks and WiFi or 4G available on request.

Common questions

How is this shipped given the weight and energy?
UN38.3 and MSDS are prepared for every build. For packs this size we advise on freight mode and state-of-charge limits.

Can multiple packs run in parallel for larger machines?
Yes, with matched packs and a BMS configured for it. Tell us the target bank size at quotation stage.

Cells, compliance and lead time

Grade A 18650 cylindrical ternary cells, generally specified with UL recognition at cell level. Every pack ships with a UN38.3 test summary and MSDS prepared for air, sea and road transport. Assembly and testing take around 7 working days. Cell supply is what sets the overall schedule: when the cells your design needs are in stock, samples ship in 12–15 working days; when they have to be sourced, allow 20–25. Tell us your target date early and we will confirm cell availability before you commit to it. Production runs 30–35 working days. There is no minimum order quantity — this is a custom design business and we quote single units, with pricing improving noticeably from 100 packs upward. Ternary lithium warranty typically runs 2 years.