Top Trusted Commercial Solar Battery Factory & Supplier

High-Performance Solar Energy Storage Solutions

Explore our elite selection of commercial-grade lithium and deep-cycle energy storage systems designed for scalable installations.

Amaxpower 12V 100ah Deep Cycle Solar Gel Battery

Longer cycle-life VRLA AGM sealed lead acid inverter battery.

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Deep Cycle Battery 12V 24V 200ah Gel Lead Acid

Off-grid storage solar gel battery for home and light C&I applications.

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All in One Full Set Solar Inverter Lithium Ion Battery 48V 280ah

All in One Solar Inverter Lithium Battery 48V 280ah

Integrated 15kwh hybrid storage system for seamless off-grid configurations.

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51.2V 300ah 5kwh 10kwh 15kwh Energy Storage System

51.2V 300ah LiFePO4 Energy Storage System

Scalable modular LiFePO4 battery pack with advanced integrated BMS.

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Portable Power Supply Solar Generator

High-capacity generator with UPS capability, wireless charging, and LED panels.

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15kwh Solar Lithium Battery LiFePO4 51.2V Vertical Box Kit

15kwh Solar LiFePO4 51.2V Vertical Battery Kit

Space-saving vertical tower battery for efficient residential/C&I setups.

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Factory 12.8V Lithium Battery 12V 100ah-250ah

Factory 12.8V LiFePO4 Replacement Battery

Replacement solution for lead-acid batteries, compatible with RV, Marine & Solar.

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Customized 3kw-10kw Lithium Battery Solar System

Customized 3kw-10kw Lithium Solar System

High-efficiency turnkey solution with hybrid off-grid inverter integration.

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Shenzhen Suntherra Battery Co., Ltd.

Established in 2014 in Shenzhen, China, Shenzhen Suntherra Battery Co., Ltd. stands as an industry-leading manufacturer specializing in solar energy storage batteries and custom BESS integrations. Over the past decade, we have scaled our production infrastructure to cover 12,000 square meters, equipping our facility with cutting-edge robotic assembly lines, high-precision capacity grading testing chambers, and an in-house safety testing laboratory.

By utilizing high-grade lithium iron phosphate (LiFePO4) chemistry and optimizing standard gel/AGM deep cycle architectures, we help industrial, commercial, and utility sectors globally decarbonize their power infrastructure. As a direct OEM/ODM provider, Suntherra guarantees complete customization ranging from cell selection, BMS protocol communication matching, mechanical structural engineering, to custom industrial casing.

Technological Roadmap & Next-Gen BESS Architecture

Unlocking superior LCOS (Levelized Cost of Storage) via pioneering technological leaps in electrochemical materials and software intelligence.

High-Density Solid-State Integration

We are actively transitioning our commercial modules from liquid-electrolyte LiFePO4 cells to semi-solid-state chemistry. This technology increases volumetric energy density by up to 35%, significantly reducing the footprint required for large-scale containerized systems while eliminating electrolyte leakage risks entirely.

Cloud-Linked Intelligent BMS

Our custom Battery Management Systems (BMS) integrate AI algorithms to evaluate cell aging patterns, state-of-charge (SoC), and state-of-health (SoH). Dynamic balancing and smart cloud monitoring preempt potential thermal events up to 72 hours in advance, protecting commercial assets from catastrophic failure.

Direct High-Voltage Cascading

By using direct series-parallel connections, our high-voltage battery arrays operate up to 1000V DC. This configuration limits transmission power loss, eliminates the need for expensive DC-DC boost converters, and elevates global system efficiency to record-high levels (>95% round-trip efficiency).

Macro-Industry Storage & Integration Scenarios

How Suntherra’s energy storage systems stabilize grids, cut operational costs, and guarantee uninterrupted operations across varied key sectors.

1. Peak Shaving & Load Shifting

For manufacturing complexes facing heavy demand charges, Suntherra BESS stores energy during off-peak hours and discharges it during peak consumption windows. This dramatically flattens the power curve and reduces utility billing demand fees by up to 40%.

2. Telecom Base Station Backup

Telecommunication networks demand absolute uptime. Our 48V telecom rack-mount lithium batteries act as dependable emergency backups, performing flawlessly in temperature extremes ranging from -20°C to 60°C, and lasting three times longer than traditional SLA counterparts.

3. Cold Chain Logistical Continuity

Unplanned grid blackouts can destroy temperature-sensitive pharmaceutical and biological inventories. Our high-voltage integrated containerized solutions trigger zero-millisecond automatic transfer switches, ensuring uninterrupted power for massive industrial cooling facilities.

China Factory 4.0: Supply Chain Resilience & Cost Optimization

Shenzhen's unique hardware ecosystem allows Suntherra to maintain unmatched production efficiency. Our automated cell sorting, high-speed laser welding, and automated product packaging systems ensure consistent build quality and high mechanical reliability.

Optimized Logistics: Direct integration with neighboring raw material refineries reduces mineral shipping lead times and safeguards cell pricing.
Automated Laser Sorting: Advanced equipment groups cells by voltage, internal resistance, and capacity with strict tolerances (+/-0.05V) to extend pack lifespan.
100% Comprehensive Testing: Every custom module undergoes complete thermal vibration testing, charge-discharge profiling, and high-pot isolation analysis before shipping.
Reduced LCOE: Lower overhead costs combined with high cell reliability allow us to offer highly competitive pricing configurations to global commercial partners.

Localized Support & Global Compliance Certifications

Suntherra simplifies importation and installation, adhering to strict international certifications and providing responsive global customer support.

North American Codes

UL 1973, UL 9540A testing protocol conformity, ensuring safety during thermal runaway simulations at the facility level.

European Standards

Full CE, EN 62619, and RoHS compliance, allowing easy grid integration across the EU single market.

Safe Transportation

UN38.3 certification and detailed MSDS documents provided with every shipment to ensure trouble-free maritime transport.

Aftersales Support

Expert tech support, fast replacement parts dispatch, and troubleshooting guidance for local engineering partners.

Key Procurement Metrics for Global Solar Buyers

Consider these key specifications when sourcing heavy industrial energy storage systems.

Depth of Discharge (DoD) & Cycles

Our LiFePO4 chemistry consistently delivers >6000 cycles at 80% Depth of Discharge. This guarantees more than 15 years of daily cycling operation, lowering lifetime maintenance overhead and maximizing initial solar project investments.

Active vs. Passive Thermal Management

Large containers (>1MWh) utilize high-flow liquid cooling systems, keeping cell temperature variance under 3°C. In contrast, smaller indoor setups rely on energy-efficient smart forced-air cooling designs.

BMS Integration & Communication

Our systems feature native CANbus, RS485, and Modbus TCP ports, allowing plug-and-play integration with major inverter brands like Growatt, Victron, Deye, and SMA.

Frequently Asked Questions (FAQ)

Direct answers from our engineering team regarding design, ordering, and technical implementation.

Q1: Can Suntherra customize the BMS communication protocol for specific inverter platforms?

Yes. Our software engineers can write custom CANbus/RS485 communication protocols to integrate our battery storage systems with your current power conversion system (PCS) or specific inverter setup.

Q2: What is the standard lead time for OEM/ODM battery orders?

Standard samples are manufactured and shipped within 15–20 days. Volume container orders typically require 35–45 days, depending on custom mold creation, high-voltage testing, and certification requirements.

Q3: How does Suntherra handle safety and thermal runaway prevention?

We use high-grade LiFePO4 cells which are inherently stable. Each module is built with fire-retardant structural framing, dynamic cell monitoring, and integrated aerosol fire suppression systems that activate automatically if abnormal temperatures are detected.

Q4: Are your commercial battery systems compatible with high-voltage utility grids?

Yes. Our containerized commercial and industrial (C&I) batteries support serial configurations up to 1000V DC. They connect easily to mid-to-high voltage grids using standard step-up transformer substations.

Q5: What warranty terms does Suntherra offer for commercial-grade storage systems?

We offer a comprehensive 5-to-10 year warranty on our LiFePO4 systems, backed by certified performance metrics and detailed capacity retention guarantees.