Application — Autonomous mobile robot (AMR) power
Requirement — The request was to consolidate stable long-duration operation for autonomous mobile robot (AMR) power into a single power unit.
Solution — We configured a Li-ion 7S pack (DC 25.2V, 54.4Ah) together with a charging module.
Result — A discharge configuration rated at 70A (1.3C) maximum (84A peak @ ≤1.5s), housed in approx. 8kg, completes autonomous mobile robot (AMR) power in a single pack.
If you are considering a custom build to a similar specification, submit a requirements sheet. Our engineer will review it and respond.
Specification
Specifications
| Product Code | DMOP-252LI544-B70-CH20 |
|---|
General
| Model | DMOP-252LI544-B70-CH20 |
|---|---|
| Dimension | Approx. L280 x W185 x h150mm (including protrusions) Approx. L251 x W185 x h150mm (excluding protrusions) |
| Weight | Approx. 8kg |
Battery ① Electrical specifications
| Battery Type | |
|---|---|
| Nominal Voltage | 25.2V |
| Nominal Capacity | 54.4Ah |
| Energy | |
| Max Discharge Power | |
| Charging Method | CC-CV(Constant Voltage with Limited Current) |
| Standard Charging Condition | 29.4V ±1%, 11A (0.2C)(End Current : 0.05C) |
| Max Charging Condition | 29.4V ±1%, 27A (0.5C)(End Current : 0.05C) |
| Standard Discharge Current | 11A(0.2C) |
| Cont. Discharge Current | 70A(1.3C) |
| Peak Discharge Current | 84A ≤1.5sec |
| Discharge Cut-off Voltage | 21.0V3.0V per cell |
| Charging module | Charging input: 24.0V(24.0V–32.0V)- Charging output: 29.4V 20A |
Battery ② Operation · Safety
| Operation Temperature | Charging: +10 – +45°C Discharging: -20 – +60°C |
|---|---|
| Protection Circuit Module | Overcharge cutoff: 4.20V ± 0.025V per cell Overcharge recovery: 4.00V ± 0.050V per cell Over-discharge cutoff: 2.90V ± 0.025V per cell Over-discharge recovery: 3.30V ± 0.050V per cell Overcurrent cutoff: 75A ± 20% Short-circuit protection: Yes (load cutoff with auto-recovery) Over-temperature cutoff: Yes Active cell balancing: Yes |
| Storage Life | Up to 6 months under no-load conditionsState of charge: SoC 60% Environment: ambient 25°C, humidity ≤70% |
| Cycle Life | ≥700cycle (70% DOD @ ≥60% of initial capacity)* This cycle life applies only to the standard charging NO5 and standard discharge current NO7 conditions |
Terminals · Control
| Terminal configuration | |
|---|---|
| Terminal specification | |
| Fastening · Wiring | |
| Charge/discharge switch (ON/OFF) |