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Household low-voltage energy storage BMS - DQ4850
Household low-voltage energy storage BMS - DQ4850
Household low-voltage energy storage BMS - DQ4850
Household low-voltage energy storage BMS - DQ4850
Household low-voltage energy storage BMS - DQ4850
Household low-voltage energy storage BMS - DQ4850
Household low-voltage energy storage BMS - DQ4850
Household low-voltage energy storage BMS - DQ4850
Household low-voltage energy storage BMS - DQ4850

Household low-voltage energy storage BMS - DQ4850

DQ4850 is used for household low-voltage energy storage. It is a BMS all-in-one machine designed for 15 and 16 strings of lithium iron phosphate of Uninterruptible Power Supply. It is also suitable for 8-16 strings of supercapacitors, lithium manganese oxide batteries, ternary lithium batteries, etc.
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Description

The BMS all-in-one machine monitors and indicates the battery status (voltage, temperature, current, remaining energy), sends an alarm signal (alarm light) to the user under abnormal conditions, and cuts off the power transmission link according to the established control strategy when it is serious; The function of cell balance to improve the effective use time and cycle life of the battery pack; the intelligent heating film control port automatically activates the heating film when the ambient temperature is too low so that the battery can work normally in a low-temperature environment. The system applied to 2U or above, can be expanded in parallel, 15/16 strings, current limit 5A, 10A, balance current 50mA

1 Feature introduction

1. Single-string voltage measurement 0.8V ~ 24V, support the measurement and management of supercapacitors, lead-acid batteries, lithium iron phosphate batteries, lithium manganate batteries, and ternary lithium batteries;

2. Support 8 to 16 strings of batteries;

3. Highly integrated chip, intelligent charge, and discharge management, SOC calculation based on intelligent learning;

4. High-precision voltage detection (±2.5mV/cell);

5. High-precision current detection (±0.5A@<50A range);

6. Channel battery temperature detection (±2°C);

7. Overvoltage, under voltage, overcurrent, high and low temperature, short circuit, and reverse connection protection functions;

8. Intermittent charging function;

9. Intelligent cell balance management;

10. Heating film control output;

11. Data storage record query function with real-time clock label;

12. You can use the button to enter the power-down mode;

13. CAN communication is used for communication between cascaded batteries and external communication (such as inverter, monitoring host computer, etc.);

14. RS485 serial port is used for communication between cascaded batteries;

15. Four remote functions: telemetry, remote signaling, remote control, and remote adjustment;

16. With CE product certification, IATF16949 quality system certification, national software enterprise certification, and other multiple certifications;

17. Equipped with graded alarm safety controller.

2. Technical parameters

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