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Solar Battery Buyer's Guide
Qcells Q.MI.349B-G1

Qcells Q.MI.349B-G1

Manufacturer Reviews (19)

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AC-coupled to seamlessly add to an existing solar system
NMC battery chemistry for a more affordable storage system
Provides backup power for power outages and blackouts
Stores excess solar energy during the day and use it at another time

EnergySage Rating

Coming Soon

Usable Capacity

264kWh

Roundtrip Efficiency

97%

Warranty

10 years

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Battery Overview

Connection Type (AC or DC)

Chemistry

Lithium-ion

Audience

Residential

Total Capacity

366kWh

Usable Capacity

264kWh

Power: Peak

415kW

Power: Continuous

349kW

Depth of Discharge

60%

Degradation

Roundtrip Efficiency

97%

The key characteristics of a battery are the power output, usable capacity and efficiency with which it stores and discharges electricity. Other characteristics, like the chemistry of the battery, help to determine how effective it is at storing electricity.

Warranty & Life Information

Warranty

10 years

Expected Life

20 years

Warranties are an indication of the overall quality of the battery. Look for a high number of cycles, a high percentage of end-of-life usable capacity, and a large number of years warrantied.

Physical Characteristics

Battery Dimensions

1722 mm L

1134 mm W

40 mm D

Traits

Scalable

Off-Grid Capable

Backup Capable

The physical characteristics of a battery help determine whether you'll need an entire garage of batteries or a wall-mounted, radiator-size battery. Beyond just storing energy, batteries have a number of additional traits, such as being able to easily scale in size or to provide power if the grid goes down.

Product Certifications

Certifications Received

None

Organizations like the International Electrotechnical Commission (IEC) and Underwriters Laboratories (UL) create national and international standards for energy storage systems to ensure any products on the market meet certain specifications for safety and reliability reasons.

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