Growatt ML33RTA 3.3kWh Battery Cell | Configure for Growatt ARO 9.9kWh and ARO 19.8kWh | Certificate UL 1973 and UL9540
- Flexible capacity options, 3.3kWh - 19.8 kWh for Growatt ARO 9.9~19.8kWh battery storage system.
- Compact size and easy installation
- High energy density and efficiency
- Excellent safety of LiFePO4 battery
See The Specs
The Growatt ML33RTA is a lithium battery cell with a capacity of 3.3kWh, which is for install into Growatt ARO battery cabinet The battery utilises LiFePO4 technology, which offers a range of benefits, including: improved discharge and charging efficiency, longer lifespan, increased safety and lightweight design.
A maximum of 6 x ML33RTA Batteries can be installed in parallel, offering flexible capacity options from 3.3kWh - 19.8 kWh. The unit has a compact design and is easy to install.
The Growatt ML33RTA can config
FEATURES & BENEFITS
- Flexible capacity options, 3.3kWh - 19.8 kWh
- Compact size and easy installation
- High energy density and efficiency
- Excellent safety of LiFePO4 battery
TECHNICAL SPECIFICATION
- Nominal voltage: 51.2V
- Nominal capacity: 3.3kWh
- Usable capacity: 3kWh
- Operating voltage: 48 – 57.6V
- Dimensions: 17.5 x 5.15x 15.5inch (W x D x H)
- Weight: 66lbs
- Protection: IP20
- Parallel connection: Max. 6 packs
Datasheet
Datasheet for ML33RTA
About Growatt
Growatt is a leading global manufacturer of solar inverters, energy storage solutions, and smart energy management systems. Founded in 2010, the company has grown rapidly to become a trusted brand in the renewable energy industry, with a presence in over 100 countries and regions around the world.
Growatt's innovative products are designed to maximize energy efficiency and enable customers to reduce their carbon footprint while saving money on energy bills. The company's range of solar inverters includes both string and central inverters, which are suitable for a wide range of applications, from residential rooftops to large-scale commercial and utility-scale projects.
In addition to solar inverters, Growatt also offers a range of energy storage solutions, including lithium-ion batteries and hybrid inverters. These products allow customers to store excess energy generated by their solar panels and use it when needed, further reducing their reliance on grid power.
With a commitment to innovation and customer service, Growatt is dedicated to providing reliable, high-quality products and solutions that meet the evolving needs of the renewable energy industry.

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