| 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 | 15kWh |
| 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 | 15kWh |
| 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 | 48V 314Ah Lifepo4 home battery ,wall mounted 15kWh energy storage ,51.2V 10kWh lithium battery pack | ||
Shenzhen First Tech Co., Ltd was established in 2017, which is a one-stop solution provider of solar & battery energy storage system.
First Tech is engaged in the research, development, production, sales and service of the commercial and industrial energy storage system, home energy storage system, lithium-ion battery pack, solar hybrid inverter. solar optimizer etc.
First Tech is located in Shenzhen City, Guangdong Province, China, the factory have passed lS09001,1S014001,1S045001 managementsystem certification and the products have obtained TUV-CB, CEIEC,EMC MSDS, UN38.3, etc certificates. The products are exported toclients in such countries and regions as Europe, Africa, Middle East,North America,South America, Southeast Asia, etc.
Except providing it's own standard products, First Tech also welcome OEM & ODM orders, and will provide professional service and quality products with competitive prices to customers and market.
First Tech is committed to becoming a global leading solar & ESS solution provider to provide green energy and contribute to cleanerworld.
Enjoy New Life, Starting with First Tech!![]()
Common Questions Regarding the Applicability of Battery Packs in Different Countries/Regions
Context: Rural electrification, solar home systems, and need for affordable, durable storage.
Q1 – Reporter: Mr. Sok Samnang, Phnom Penh Post
“Can this battery be used in a village mini-grid with several homes sharing one system?”
A: Yes. Multiple units can be combined to form a central storage bank for a solar mini-grid, providing stable AC power via an inverter to an entire community.
Q2 – Reporter: Ms. Keo Sopheak, Khmer Times
“What is the price per kWh, and is financing available for rural communities?”
A: We offer competitive pricing and are working with microfinance institutions in Cambodia to provide leasing options for communities and small businesses.
Q3 – Reporter: Mr. Heng Kimsong, Cambodia Daily
“How resistant is it to dust, given rural conditions?”
A: IP20 protects against dust larger than 12.5mm. For very dusty environments, we recommend installing it in a sealed cabinet or dedicated battery room.
Q4 – Reporter: Ms. Phavi Chamroeun, The Post
“Can local technicians be trained to install and service it?”
A: Yes, we conduct training workshops for partners and provide detailed manuals. The modular design also simplifies servicing.
Q5 – Reporter: Mr. Sam Ath Thorn, VOD
“What happens if one unit in a parallel setup fails? Does it bring down the whole system?”
A: Each unit has its own BMS. If one fails, it can be isolated and replaced without affecting the others, ensuring system resilience.
Context: Unreliable grid, remote off-grid villages, and challenging environmental conditions.
Q1 – Reporter: U Myo Min, The Myanmar Times
“Can it operate in the high temperatures of central Myanmar and the cooler highlands?”
A: Yes. Discharging temperature range is -20°C to 65°C, covering both extremes found in Myanmar.
Q2 – Reporter: Daw Khin Mar Soe, Eleven Media
“Is it easy to install in areas with no stable internet for monitoring?”
A: Internet is not required for basic operation. Monitoring can be done locally via inverter display. Remote features require GSM or satellite internet, which we can integrate.
Q3 – Reporter: U Aung Ko Latt, Frontier Myanmar
“How many years will it last in daily heavy-use scenarios?”
A: With ≥6000 cycles at 90% DOD, it can last over 16 years with daily full cycling—ideal for off-grid households or telecom towers.
Q4 – Reporter: Daw Nilar Tun, Mizzima
“Can it be charged from a small diesel generator?”
A: Yes, if the generator is connected via a compatible inverter/charger. The battery’s wide voltage range accommodates variable generator output.
Q5 – Reporter: U Tin Htut, The Irrawaddy
“Is theft a concern given the value? Are there security features?”
A: The unit is heavy (115kg) and can be bolted down. We also offer optional lockable steel cages for added security in remote sites.
Company Details
Year Established:
2017
Total Annual:
15000000-16000000
Employee Number:
100~150
Ecer Certification:
Verified Supplier
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