CTECHI Off Grid System 48V 51.2V 200Ah 400Ah Solar Lithium Batteries and Hybrid Inverters 11kW 20kWh Residential Solar System

Product Description

Products Description
Rated Capacity20kWh
Output Power11kW
Rated Output Voltage110V/230V Single Phase
Rated Frequency50hz/60hz
Nominal voltage48V/51.2V
Nominal capacity200Ah 400Ah
Charge termination voltage29.2V
Discharge termination voltage22.4-23.2V
Communication interfaceRS232, RS485, CAN
WeightAbout 120kg
Thermal ManagementNatural Cooling
Protection LevelIP54-IP65
Work Temperature-20°~60°
Life Cycle8000 Cycles
Why Choose Us
Focus on the battery industry for more than 20 years.
Experienced technical team of over 100 engineers.
Full certifications including UL, CE, RoHs, UN38.3, MSDS, IEC etc.
Logo customization renderings produced within 1 working day.
Using high-quality A cells for visible quality.
Company Profile

We are an energy storage expert with 20 years’ experience in the battery industry. We offer one-stop battery solutions as well as ODM, OEM, and SKD services, focusing on the R&D and manufacturing of a wide range of batteries, including energy storage systems, motive power batteries and digital & consumer batteries. Applications include Telecom Base Stations, AGV, RV, E-Forklift, E-Sweeper, Golf Carts, Golf Trolley, Gardening Machine, Boats, Cleaning Machine, Solar Energy Storage, and more.

We have accumulated rich experience through more than 30,000 customized cases, enabling us to provide tailored solutions and prompt responses to diverse needs. With state-of-the-art facilities covering 100,000+ square meters, we are committed to rigorous production, strict quality control, and recognized international certifications to ensure product excellence.

Workshop Display & Cases
Packaging & Delivery
Frequently Asked Questions
Q1: Can I have samples to test? What is the lead time? Yes, we can supply samples. The lead time for samples is 7-10 days. Buyers are responsible for sample and shipping costs.
Q2: Do you provide after-sales service? Yes, the warranty is usually 3 years. If any quality problems occur on our side during this period, we can send a new one as a replacement.
Q3: Do you accept OEM/ODM? Yes, OEM and ODM services are available to meet your specific requirements.
Q4: Are your battery cells of real capacity? All of our battery cells are Grade A, 100% new, and possess real rated capacity.
Q5: What kind of certificates do you have? We can provide CE, ROHS, FCC, IEC62133, MSDS, UN38.3, and other certificates as needed.
Q6: What is the lead time for mass production? Generally, it takes about 25-30 days depending on the items, following down payment and sample confirmation.

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