BY2440DC 1KW AC Portable Power Station

Specifications

Battery Parameters

Item	Specification
Battery Model	BY2440DC 1KW AC
Nominal Capacity	40Ah
Energy	1024Wh
Nominal Voltage	25.6V
Charging Voltage	29.2V
Discharge Cut-off Voltage	20V
Discharge Protection Voltage	20V
Charge Protection Voltage	30.4V
Discharge Protection Current	60A
Charging Current	Max continuous 20A charging
DC Output Discharge Current	Max continuous 42A discharging

BMS Protection Functions

Item	Specification
Charge Protection	Automatically cuts off charging when the highest single cell voltage exceeds 3.8V.
Discharge Protection	Automatically cuts off discharging when the lowest single cell voltage is lower than 2.5V.
Discharge Protection Current	Automatically cuts off discharging when the max discharge current exceeds 60A.
Over-temperature Protection	Automatically cuts off charging/discharging when the internal battery temperature exceeds 60°C.

Display & Communication

Item	Specification
Multi-function Display	Displays real-time battery voltage, capacity, and current.
Communication	Supports RS485 / RS232 / CAN communication (Optional).

Environmental & Physical Characteristics

Item	Specification
Operating Temperature	-10°C ~ 45°C
Storage Temperature	-20°C ~ 60°C
Operating Humidity	Relative humidity 10% ~ 80%, non-condensing.
Internal Resistance	≤120mΩ
Cycle Life	After 1500 charge/discharge cycles at 0.5C 5A, the remaining capacity is ≥80% of the nominal capacity.
Dimensions & Weight	410mm (L) * 342mm (W) * 204mm (H); 16Kg ± 0.5Kg

Inverter (AC Output) Parameters

Item	Specification
Rated Output Power	1000W
Maximum Output Power (Peak)	2000W
Rated Output Voltage	220Vac
Output Voltage Range	220Vac ± 2%
Power Factor	≥0.99
Rated Output Frequency	50Hz
Output Frequency Range	49-51Hz
Output Waveform	Pure Sine Wave
Output Waveform Distortion (THD)	≤5%
Output Overcurrent Protection	100% < Load ≤ 125%: Protection triggers after 1 minute. 150% < Load: Immediate protection.
Over-temperature Protection	Yes, automatic recovery.
Output Short Circuit Protection	Yes.
Output Overvoltage Protection	≥245Vac
Output Undervoltage Alarm	≤200Vac