Fed by the battery alone
A 48 V bank between 46 and 58 V DC is the whole electrical installation, so cooling continues overnight without mains or a generator.

A 17,300 BTU battery-fed split for 20-30 m² rooms, running on 46-58 V DC with a twin-rotary Highly WHP05600 compressor.
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Once the room reaches 20 to 30 m², a single rotary compressor is no longer enough, and the DGA1-DC48V-18K answers with a twin-rotary Highly WHP05600 running on a two-row coil of 9.52 mm inner-groove tube. Power still comes from the 48 V bank alone, anywhere between 46 and 58 V DC, so a living room can be held cool overnight without starting a generator. Cooling is 5,070 W at T1 for 1,450 W of input, an EER of 3.50/11.80, spanning 4,100 to 18,000 BTU as the load moves. T3 conditions leave 14,300 BTU on the table. Heating is where this model stands apart: 18,000 BTU for 1,400 W of input, a COP of 3.75/12.80, the best in the DC48V range. The indoor unit moves up to 980 m³/h under 46 dB, removes 1.7 L/h of moisture, and the outdoor unit can sit 20 m away.
Specifications last updated 24 January 2026
| Battery Voltage | 48 V |
|---|---|
| Compressor Brand | HIGHLY |
| Compressor Configuration | 2xRotary Inverter |
| Compressor Model | WHP05600 |
| Cooling Capacity | 17300 (4100-18000) BTU |
| Cooling Capacity (T1) | 5070 (1200-5250) W |
| Cooling Capacity (T3) | 14300 BTU |
| Cooling Capacity (T3) | 4200 W |
| Cooling Power Input (T1) | 1450 (220-1780) W |
| Cooling Power Input (T3) | 1660 W |
| Coefficient of Performance (COP) | 3.75/12.80 |
| DC Power Supply | 46-58 |
| Dehumidification | 1.7 L/h |
| EER (T1) | 3.50/11.80 |
| EER (T3) | 2.55/8.60 |
| Electronic Expansion Valve | Yes |
| Heating Capacity | 18000 (4100-18700) BTU |
| Rated Heating Capacity | 5250 (1200-5500) W |
| Heating Power Input | 1400 (220-1830) W |
| Indoor Airflow | 980/880/740/620 m³/h |
| Indoor Fan Motor | BLDC 45W |
| Outdoor Airflow | 2200 m³/h |
| Outdoor Coil Rows | 2 |
| Outdoor Coil Tube | 9.52, Innergroove Tube |
| Outdoor Fan Motor | BLDC 55W |
| Outdoor Fan Speed | 880 rpm |
| Power Supply | Battery |
| Refrigerant | R410A |
| Connection Wire Length | 5 m |
|---|---|
| Container Loading Quantity | 160/75 |
| Dimensions | 900 x 700 x 337 mm |
| Drain Pipe Size | 16 mm |
| Indoor Unit Dimensions | 1080 x 330 x 237 mm |
| Indoor Unit Packing Dimensions | 1140 x 300 x 382 mm |
| Indoor Unit Weight | 15/18.5 kg |
| Max. Level Difference | 10 m |
| Max. Pipe Length | 20 m |
| Outdoor Unit Packing Dimensions | 910 x 622 x 405 mm |
| Refrigerant Pipe (Gas/Liquid) | 1/2, 1/4 in |
| Supplied Pipe Length | 4 m |
| Weight | 36/40 kg |
| Climate Type | T1/T3 |
|---|---|
| Indoor Noise Level | <46 dB |
| Max. Design Pressure | 4.3/1.5 MPa |
| Operating Temperature | -10 to 58 °C |
| Outdoor Noise Level | <55 dB |




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Read: Deye Hybrid vs String Inverter — Do You Really Need Battery Storage? →In cooling it draws 220 to 1,780 W, sitting at 1,450 W under T1 and 1,660 W under T3, all of it from a 48 V bank held between 46 and 58 V DC.
20 to 30 m², which covers a living room or a two-bed room. Under 20 m² the 12,000 BTU DGA1-DC48V-12K is the closer fit, and above 30 m² the 22,000 BTU DGA1-DC48V-24K.
Its rated heating COP is 3.75/12.80, the highest of the four, giving 5,250 W of heat for 1,400 W of input. Heating output spans 1,200 to 5,500 W.
Output settles at 4,200 W, or 14,300 BTU, for 1,660 W of input, an EER of 2.55/8.60. The unit is rated for both T1 and T3 climates from -10 to 58 °C.
Up to 20 m of refrigerant pipe with 10 m of level difference, on 1/2 in gas and 1/4 in liquid lines. Four metres of pipe and 5 m of wire are supplied, and the pair weighs 36 kg net.