| Payment Terms | L/C,T/T |
| Supply Ability | 2000 pieces per month |
| Delivery Time | 15 days |
| Packaging Details | carton box |
| Safety Features | Overcharge Protection, Overdischarge Protection, Short Circuit Protection |
| Capacity | 16kWh |
| Chemistry | Lithium Ion |
| Certifications | CE, UL, IEC |
| Cycle Life | >5000 Cycles |
| Warranty | 5-10 Years |
| size | 740*395*250mm |
| Operating Temperature | -20°C To 55°C |
| Brand Name | 1stess |
| Model Number | RPES-WM2 (51.2V 300Ah) |
| Certification | CE, IEC |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 2000 pieces per month |
| Delivery Time | 15 days | Packaging Details | carton box |
| Safety Features | Overcharge Protection, Overdischarge Protection, Short Circuit Protection | Capacity | 16kWh |
| Chemistry | Lithium Ion | Certifications | CE, UL, IEC |
| Cycle Life | >5000 Cycles | Warranty | 5-10 Years |
| size | 740*395*250mm | Operating Temperature | -20°C To 55°C |
| Brand Name | 1stess | Model Number | RPES-WM2 (51.2V 300Ah) |
| Certification | CE, IEC | Place of Origin | China |
| High Light | Lifepo4 lithium battery 16KWh wall mounted ,51.2V energy storage battery with remote upgrade ,314Ah all in one battery pack | ||
| Model | WYLD51.2V314AH |
|---|---|
| Rated Voltage | 51.2V |
| Rated Capacity | 314Ah |
| Rated Energy | 16.076kWh |
| Cycle life | ≥5000 |
| Maximum charging voltage | 57.4V |
| Minimum discharge voltage | 43.2V |
| Standard charging current | 150A |
| Standard discharge current | 150A |
| Dimension L*W*H (mm) | 740*395*250mm |
| Weight (kg) | 115kg |
Shenzhen First Tech Co., Ltd was established in 2017 as a one-stop solution provider of solar & battery energy storage systems. We specialize in research, development, production, sales and service of commercial and industrial energy storage systems, home energy storage systems, lithium-ion battery packs, solar hybrid inverters, and solar optimizers.
Located in Shenzhen City, Guangdong Province, China, our factory has passed ISO9001, ISO14001, and ISO45001 management system certifications. Our products have obtained TUV-CB, CEIEC, EMC MSDS, UN38.3, and other certificates. We export to Europe, Africa, Middle East, North America, South America, and Southeast Asia.
In addition to standard products, we welcome OEM & ODM orders, providing professional service and quality products at competitive prices. First Tech is committed to becoming a global leading solar & ESS solution provider to deliver green energy and contribute to a cleaner world.
Enjoy New Life, Starting with First Tech!![]()
Common Questions Regarding Applicability in Different Countries/Regions:
Context: The Philippines is an archipelago prone to typhoons and earthquakes, with an unstable grid in many areas and high electricity costs.
Q1 – Reporter: Ms. Angela Reyes, Philippine Daily Inquirer
"In a country with frequent seismic activity, are there mounting or installation guidelines to secure the battery during an earthquake?"
A: While the standard installation is floor-mounted, we provide seismic restraint guidelines for high-risk zones. This includes using specially designed brackets to anchor the cabinet to the building's structure, preventing tipping or shifting during seismic events.
Q2 – Reporter: Mr. Miguel Torres, Manila Bulletin
"After a major typhoon, the grid can be down for days. Can this system be part of a community-level 'resilience hub' for charging phones and powering medical equipment?"
A: Absolutely. Multiple units can be paralleled to create a community battery bank, paired with solar panels. This can form a resilient microgrid to power critical community services—a clinic, evacuation center, or communication post—independently of the national grid for extended periods.
Q3 – Reporter: Ms. Carla Dimagiba, BusinessWorld
"How does the battery management system handle potential salt spray corrosion in coastal barangays?"
A: The internal components and PCBAs have conformal coating for protection against moisture and corrosive atmospheres. For direct coastal exposure, we recommend an additional protective enclosure with a higher IP rating (e.g., IP65) to shield the entire unit from salt spray.
Q4 – Reporter: Mr. Ferdinand Cruz, The Philippine Star
"Is the system compatible with the three-phase, 220/380V grid common in commercial establishments here?"
A: The battery itself provides DC power. It is designed to be compatible with most three-phase hybrid inverters available in the Philippine market, which then convert the power to the required 220/380V AC for the building's loads.
Q5 – Reporter: Ms. Sofia Alonzo, Rappler
"Given our hot climate, at what ambient temperature does the derating mentioned in the notes begin, and what is its impact?"
A: Derating begins at an ambient temperature of 40°C. It means the BMS may slightly reduce the maximum charge/discharge current to protect the battery's health and longevity. For most applications in the Philippines, this has a minimal impact on daily performance but is crucial for long-term reliability.
Context: Vietnam is experiencing a manufacturing boom, leading to high industrial energy demand, time-of-use tariffs, and pressure to adopt cleaner energy.
Q1 – Reporter: Ms. Nguyen Thi Minh, VnExpress
"For a factory on a Time-of-Use tariff, can the system be programmed for automatic 'arbitrage'—charging at low-cost night rates and discharging during expensive day rates?"
A: Yes, this is a primary economic driver. The system's Energy Management System (when integrated with a smart inverter) can be easily programmed with the utility's ToU schedule. It will automatically charge the battery when rates are low and discharge to power the factory when rates are high, delivering immediate cost savings.
Q2 – Reporter: Mr. Tran Van Son, Tuoi Tre
"What is the maximum power (kW) output a single unit can provide to support heavy machinery start-up surges?"
A: With a peak discharge current of 200A for 3 minutes, a single 51.2V unit can deliver a peak power of approximately 10.2kW (51.2V * 200A). This is sufficient to support the inrush current of many industrial motors without needing to oversize the system.
Q3 – Reporter: Ms. Le Phuong Anh, Vietnam News
"How does the self-developed BMS ensure consistency and quality compared to outsourced solutions?"
A: Developing our own BMS allows us full control over the software algorithms, protection parameters, and communication protocols. This deep integration with our own LiFePO4 cells ensures optimal performance, precise state-of-charge calculation, and superior safety management compared to generic BMS solutions.
Q4 – Reporter: Mr. Hoang Duc Manh, Thanh Nien
"Can data from multiple factory installations be aggregated for group monitoring by a corporate headquarters?"
A: Yes, our cloud platform supports multi-site management. A corporate energy manager can view the status, performance, and savings of all storage systems across different factory locations from a single dashboard, enabling centralized oversight and reporting.
Q5 – Reporter: Ms. Pham Lan Huong, Sai Gon Giai Phong
"What is the expected return on investment for a medium-sized textile factory in Ho Chi Minh City?"
A: The ROI depends on specific electricity rates and consumption patterns. Typically, with significant peak shaving and ToU arbitrage, factories can achieve an ROI of 4-6 years. Given the 15-year design life, this means over a decade of reduced operational costs post-payback.
Context: As the world's largest archipelago, Indonesia faces challenges with off-grid electrification, diesel dependency, and diverse climates from jungles to coastlines.
Q1 – Reporter: Ibu Ratna Sari, Kompas
"For a remote village mini-grid currently run on diesel, how much fuel savings can be realistically expected by adding solar and this battery system?"
A: By using solar to charge the batteries during the day and dispatching that energy in the evening (peak diesel time), it's common to achieve 60-80% diesel fuel savings. The battery allows the diesel generator to be switched off for long periods, also reducing maintenance costs.
Q2 – Reporter: Bapak Budi Santoso, Republika
"In humid jungle environments, how is mold or fungus growth on electronic components prevented?"
A: The electronic assemblies inside use materials and conformal coatings that are resistant to fungal growth, as per relevant IEC standards. The recommended 5-90% non-condensing humidity range is suitable for most Indonesian climates, provided condensation is prevented through proper ventilation.
Q3 – Reporter: Ms. Devina Wijaya, Jakarta Post
"What is the strategy for providing spare parts and technical training in remote provinces like Papua?"
A: We are establishing regional service hubs in key locations like Java and Sulawesi. We also run "train-the-trainer" programs with our local partners to build in-country expertise. For critical remote projects, we can preposition key spare parts as part of the initial deployment.
Q4 – Reporter: Mr. Agung Prabowo, Tempo
"Can the system operate effectively in high-altitude areas above 1500m?"
A: The system is rated for altitudes up to 3000m without derating. Above 2000m, the cooling efficiency of the air might decrease slightly, but the system is designed to compensate. For very high-altitude installations, we can provide specific guidance to ensure optimal performance.
Q5 – Reporter: Ibu Maya Puspita, Media Indonesia
"Is the communication protocol open for integration with third-party mini-grid controllers?"
A: Yes, we use standard Modbus over RS485 and CAN, which are widely adopted in the energy industry. We provide the communication protocol documentation to reputable system integrators and mini-grid controller manufacturers to enable seamless integration.
A: The battery can discharge in temperatures as low as -20°C. However, it can only charge above 0°C. In a cold storage environment, it's crucial to install the battery in a separate, temperature-controlled room (above 0°C) to ensure it can always recharge when needed, either from solar or the grid.
Q4 – Reporter: Mr. John Campbell, The Phuket News
"What is the warranty process in Thailand if a component fails?"
A: We operate through certified local partners who handle first-line warranty support. In case of a failure, our partner will diagnose the issue. If a replacement is needed, we have a regional warehouse to supply parts or entire units swiftly, minimizing downtime.
Q5 – Reporter: Khun Arunee Vichit, Matichon
"Can the system's data be exported for sustainability reporting that many hotels now require?"
A: Yes. The monitoring platform can generate reports on solar energy self-consumed, grid energy offset, and estimated CO2 savings. This data can be easily exported for inclusion in corporate sustainability or ESG (Environmental, Social, and Governance) reports.
Company Details
Year Established:
2017
Total Annual:
15000000-16000000
Employee Number:
100~150
Ecer Certification:
Verified Supplier
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