Custom 24V 4Ah 18650 PVC Wrap Battery Pack

A compact 25.6V 4Ah LiFePO4 pack in PVC wrap, sized for OEM device integration where internal volume is the binding constraint. Nominal energy is approximately 102 Wh (calculated from nominal voltage and rated capacity; delivered usable energy depends on discharge current, operating temperature, cutoff voltage, and application duty cycle). The pack delivers 2A continuous discharge current, with peak discharge capability up to 10A (short-duration pulse, subject to thermal and BMS limits), rated at a 0.5C rating. This is a steady-load design rather than a high-rate traction pack.

Charging at 2A brings it to full in roughly 2.5 hours. The operating window is -20~60°C on discharge and 0~45°C on charge. The pack measures 81 x 68 x 98 mm and weighs 0.95 kg.

Where it sits in the range

This is the entry point of our 24V range. The next step up is 8Ah, which is where most projects land once the duty cycle is modelled properly.

What we customise

Cell count and arrangement, connector type, wire gauge and length, NTC placement, wrap printing and protection thresholds are all set per project. Packs this size often use a simple protection board; where the device needs it we add a full BMS with Bluetooth, CAN or RS485.

Common questions

How long does a design revision add?
Each revision restarts the 20–25 working day sample clock. Locking the envelope and current profile early is the biggest time saver.

Why PVC wrap instead of a plastic case?
Wrap saves volume and weight and costs less at low volumes. A moulded case makes sense when you need ingress sealing or the volumes justify tooling.

Cells, compliance and lead time

Grade A 18650 cylindrical LFP 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. LiFePO4 warranty typically runs 3–5 years, set against the discharge duty of the application; high-rate cycling shortens it.