Jntech Renewable Energy Co., Ltd.

14/02/2026

Happy Valentine’s Day from all of us at JNTech! ❤️

10/02/2026

JNTech Tech Daily — Final pre-shipment tests in progress.
Before any system leaves our factory we run full validation: BMS checks, insulation & safety tests, functional load runs and telemetry verification. These final tests ensure smooth on-site commissioning and long-term reliability.
Want FAT reports or commissioning support? Email: [email protected]

06/02/2026

JNTech — 61.44 kWh Cabinet Installation Guide.
Today’s clip: how our team installs battery packs, connects COM/network and DC power, and performs the final checks before HV box power-up. Safety: two-person lift and PPE required. Watch the full step-by-step video and download the commissioning checklist.
📩 [email protected]

05/02/2026

Ready for Bangladesh: two JNTech ESS units are heading out — a 61.44 kWh energy cabinet and a 100 kW / 200 kWh integrated system. Our team is running final factory tests to ensure every unit meets performance and safety standards before shipment.
Watch more operation & testing videos on our YouTube: https://www.youtube.com/channel/UCqAtM07ZVIoBHBNvYDk6fQw

📩 Inquiries: [email protected]

05/02/2026

Energy Storage Cabinet High-Voltage Box Fails to Power On? A Senior O&M Engineer Guides You Through Troubleshooting

We provide complete repair procedures to help you quickly restore your system.

04/02/2026

HV box won’t power on after closing the breaker? In Episode 04 of our ESS Maintenance series we show a safe, step-by-step workflow: measure P+/P- voltage, isolate and remove HV cabling, inspect fuses and the RTC 18650 backup cell on the main board, replace parts if needed, then reassemble and verify.

Safety first — HV work must be done by trained technicians. Need PC tools, spare fuses or engineer support? Email: [email protected]

03/02/2026

🗓JNTech Daily Energy
From production floor to performance bench, we make sure every unit is test-backed and export-ready.
📩 [email protected] | Request test reports & lead time

02/02/2026

Microgrid ESS Maintenance #03

If the HV box still shows a fault after replacing the slave control board, the next step is to check the internal sampling harnesses.
This video walks through safe removal of the battery pack, inspection of A/B module harnesses (16/18 lines), re-crimping terminals, reseating connectors, and final reassembly — proven steps to restore HV box power.

⚠ Only qualified technicians should perform HV work. For PC tools, spare boards or remote support, contact: [email protected]

30/01/2026

In the global wave of energy transition, the era of low-margin resale of PV modules is over. The market is evolving towards integrated solutions of "product + system + service.

29/01/2026

Still seeing a fault light after checking network cables? It may be time to inspect the slave control acquisition board.

In this video, our engineers demonstrate how to use PC diagnostic software to locate battery pack faults and safely replace a slave control board inside the energy storage cabinet.

🔧 What you'll learn:
✔ How to connect a laptop to the EMS port
✔ How to identify a “Slave Control” fault
✔ Step-by-step board replacement procedure
✔ When a battery pack requires deeper inspection

⚠ Always power down and follow electrical safety procedures before servicing high-voltage equipment.

Need the PC diagnostic tool or remote technical support? JNTech engineers are ready to help worldwide.

📩 [email protected]
🌍 www.jntechenergy.com

29/01/2026

Dear LinkedIn Leaders, Investors, and Champions, Against the backdrop of global energy transition and unstable regional power grids, solar microgrids have become a lifeline for businesses to maintain operations. As a seasoned veteran with over 20 years of