Application — Emergency power
Requirement — The challenge was to handle AC220V mains power within one pack in the emergency power application.
Solution — We built an AC220V 300W inverter into a Li-ion 3S pack (DC 10.8V, 555Wh).
Result — The integrated build in an approx. 10kg housing met the emergency power specification.
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-LI555Wh-AC300W-DC12V |
|---|
General
| Model | DMOP-LI555Wh-AC300W-DC12V |
|---|---|
| Dimension | Approx. L258.5 x W399.5 x H142mm (including protrusions) |
| Weight | Approx. 10kg |
Battery ① Electrical specifications
| Battery Type | 3S Li-ion |
|---|---|
| Nominal Voltage | 10.8V (9.0–12.6V) |
| Nominal Capacity | |
| Energy | 555Wh |
| Max Discharge Power | 300W |
| Charging Method | CC-CV(Constant Voltage with Limited Current) |
| Standard Charging Condition (0.2C) | 12.6V±1%, 10A, CC-CVEnd Current : 1A (0.02C) |
| Max Charging Condition | 12.6V±1%, 25A, CC-CVEnd Current : 1A (0.02C) |
| Standard Discharge Current | |
| Max Discharge Current | |
| Instantaneous Discharge Current | |
| Discharge Cut-off Voltage | 9.0V3.0V per cell |
| AC output | AC 220V – 600W(60Hz) |
Battery ② Operation · Safety
| Max Temperature Range | Charging: 0 – +45°C Discharging: -20 – +55°C Storage (recommended): +5 – +30°C |
|---|---|
| Battery Management System | Module configuration: 1P Overcharge cutoff: 4.25V ± 0.015V per cell Overcharge recovery: 4.05V ± 0.015V per cell Over-discharge cutoff: 2.80V ± 0.025V per cell Over-discharge recovery: 3.20V ± 0.025V per cell Overcurrent cutoff: 95A ± 20% Short-circuit protection: Yes (load cutoff with auto-recovery) Over-temperature cutoff: Yes Active cell balancing: Yes Control method: MOSFET |
| Storage Life | Up to 6 months under no-load conditionsState of charge: SoC 60% Environment: ambient 25°C, humidity ≤70% |
| Cycle Life | ≥60% of nominal capacity after 500 cycles Charge/discharge condition: standard charge, then discharge at the standard discharge current down to the cut-off voltage Environment: ambient 25°C, humidity ≤70% |
Terminals · Control
| Terminal configuration | |
|---|---|
| Terminal specification | |
| Fastening · Wiring | |
| Charge/discharge switch (ON/OFF) | Option: charge/discharge rocker switch (ON/OFF) |