DF640 Solar Lithium Battery | 12V 640Wh | Bluetooth Smart Control | -40℃ Extreme Cold Version

brand: Delivery date: 5-10 days Place of origin: China Transportation: globalMain features: 640Wh high-energy design, 80W high-power output, 15-36V wide-range solar input, military-grade protection, stable operation at -40℃ extreme cold, Bluetooth smart management.

Technical Specifications Comparison

Model	XF320	DF640	DF960	DF1280	DF1600	DF1920
System Voltage	12V	12V	12V	12V	12V	12V
Solar Input Range	12V-25V	15V-36V	15V-36V	15V-36V	15V-36V	15V-36V
Load Output Voltage	15V-30V	15V-45V	15V-45V	15V-45V	15V-45V	15V-45V
Overcharge protection voltage	14.4V	14.4V	14.4V	14.4V	14.4V	14.4V
Over-discharge protection voltage	10.2V	10.2V	10.2V	10.2V	10.2V	10.2V
Battery capacity	320Wh	640Wh	960Wh	1280Wh	1600Wh	1920Wh
Battery Size (length × width × height mm)	340×149×94	240×195×95	240×177×127	470×195×95	470×177×127	470×177×127
Maximum Output Power	45W	80W	100W	120W	120W	120W
Operating Temperature Range	-40℃~60℃	-40℃~60℃	-40℃~60℃	-40℃~60℃	-40℃~60℃	-40℃~60℃

Product Advantages
Why choose DF640 energy storage battery?

The DF640 lithium iron phosphate battery adopts a double-layer cell stacking design, achieving a high energy density of 640Wh within a compact space of 240×195×95mm. The upgraded MPPT controller supports a wide solar input range of 15-36V, compatible with various types of photovoltaic panels, with a conversion efficiency up to 97%.

Specially designed for high-power devices with 80W continuous output capability, capable of simultaneously powering a laptop (45W) + lighting equipment (20W) + small refrigerator (15W). Intelligent load recognition technology automatically allocates power to avoid overload risks.

Passed military-standard vibration testing and IP67 protection certification, the housing adopts aluminum alloy + ABS composite material, combining heat dissipation with impact resistance, making it particularly suitable for mobile scenarios such as RV travel and mobile workstations.