Question 1

Can the system be expanded in the future?

Accepted Answer

Yes, the DQ1914 supports multi-unit parallel expansion. Installers can deploy in phases based on customer needs, while homeowners can upgrade gradually according to budget and energy demand, avoiding high upfront investment.

Question 2

How is the DQ1914 different from a traditional inverter + battery setup?

Accepted Answer

Unlike traditional inverter + battery setups that require separate components and complex wiring, the DQ1914 integrates inverter, MPPT controller, and battery in a single compact system. This saves space, simplifies installation, reduces maintenance costs, and is ideal for scalable residential and commercial use.

Question 3

How does the DQ1914 help homeowners save in the long run?

Accepted Answer

With high-efficiency power conversion and long-life LiFePO₄ batteries, the DQ1914 reduces energy costs throughout its 10+ year lifecycle. Paired with remote monitoring, homeowners can optimize energy usage in real time, ensuring maximum savings and ROI.

Question 4

Is the installation complicated?

Accepted Answer

Installation is simple. The all-in-one design comes pre-assembled with inverter, battery, and MPPT, supporting both wall-mounted and floor-standing options. This significantly reduces installation time and labor costs.

Question 5

Cell Parameter

Accepted Answer

Battery TypeLiFePO4Capacity200Ah / 51.2V

Question 6

AC Parameter

Accepted Answer

Rated Power10 kWAC Output Voltage230 V ACAC Output Frequency50/60 HzAC Input Voltage Range230 V ACAC Input Frequency50/60 HzMaximum AC Input Current/Charging Current60 A / 150 A

Question 7

PV Parameter

Accepted Answer

Maximum PV Voltage500 V DCMPPT Voltage Range120–450 V DCPV Charge Current150 A

Question 8

System Parameter

Accepted Answer

Operating Temperature-20°C to 50°CStorage Temperature-30°C to 70°CExternal Dimensions666 × 220 × 1157mmMax. parallel number6Weight106 kgWarranty5 years

Question 9

Cell Parameter

Accepted Answer

Battery TypeLiFePO4Capacity314Ah / 51.2V

Question 10

AC Parameter

Accepted Answer

Rated Power10 kWAC Output Voltage230 V ACAC Output Frequency50/60 HzAC Input Voltage Range230 V ACAC Input Frequency50/60 HzMaximum AC Input Current/Charging Current60 A/150 A

Question 11

PV Parameter

Accepted Answer

Maximum PV Voltage500 V DCMPPT Voltage Range120–450 V DCPV Charge Current150 A

Question 12

System Parameter

Accepted Answer

Operating Temperature-20°C to 50°CStorage Temperature-30°C to 70°CExternal Dimensions590 × 196 × 1440 mmMax. parallel number6Weight151 kgWarranty5 years

Question 13

Cell Parameter

Accepted Answer

Battery TypeLiFePO4Capacity628Ah / 51.2V

Question 14

AC Parameter

Accepted Answer

Rated Power10 kWAC Output Voltage230 V ACAC Output Frequency50/60 HzAC Input Voltage Range230 V ACAC Input Frequency50/60 HzMaximum AC Input Current/Charging Current60 A/150 A

Question 15

PV Parameter

Accepted Answer

Maximum PV Voltage500 V DCMPPT Voltage Range120–450 V DCPV Charge Current150 A

Question 16

System Parameter

Accepted Answer

Operating Temperature-20°C to 50°CStorage Temperature-30°C to 70°CExternal Dimensions590 × 196 × 1810 mmMax. parallel number6Weight277 kgWarranty5 years

Question 17

Datasheet

Accepted Answer

DQ1914 ESS Datasheet(PDF 954 KB , 10/10/2025)

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