Home / 15 Days Off-Grid Power: Tespro DTU with 27,000 mAh Battery
#Product Blog · May 19, 2026 · About 4 minutes
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15 Days Off-Grid Power: Tespro DTU with 27,000 mAh Battery

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Tespro

Buying trends in 2026 show three clear shifts: battery-powered operation is no longer optional for outdoor/pole-mount meters; multi‑brand, multi‑protocol support (electricity, water, gas, heat meters) is mandatory; and remote diagnostics can reduce site visits by 40‑60%.

Tespro’s TD-DTU-PLUS model includes a 27,000 mAh built‑in battery – fully charged, it runs for up to 15 days, collecting and transmitting data even when external power is unavailable. This is ideal for pole‑mounted meter boxes without grid power, temporary construction sites, or emergency metering after natural disasters.

On protocol compatibility, the DTU ships with pre‑integrated stacks including IEC 62056, DL/T‑645, ANSI Type 2, and many others. It works plug‑and‑play with Landis+Gyr, EDMI, ITRON, ELSTER, ISKRA, and dozens more – no extra development.

The included cloud management platform shows signal strength, last successful transmission, firmware version, and battery level for each site.

Operations teams can push configuration updates over‑the‑air, adjust heartbeat intervals, or change server addresses without a single site visit.

  • I manage hundreds of off‑grid rural water meters in northern China. How long can this DTU last on battery?
    The TD-DTU-PLUS runs for up to 15 days at full load. If you reduce reporting frequency (e.g., once per hour instead of every minute), the battery can last 30 days or more. You can remotely adjust the collection strategy on the cloud platform based on real‑time battery status.
  • Our existing meters are mixed brands with different protocols. Does this DTU require custom development?
    No. Tespro’s protocol stack already includes over 20 common meter protocols for electricity, water, gas, and heat meters. Simply select the correct protocol for each port on the cloud dashboard, and the DTU will parse the data immediately. For non‑standard protocols, we offer custom development – typically completed within two weeks.
  • In Latin America, some carriers require private APN and custom heartbeat packets. Can this DTU support that?
    Yes. Tespro DTU allows you to fully customize heartbeat content, interval, and destination server address (IP or domain). For private APN environments, we provide configuration templates that can be pushed to all devices in one click via the cloud platform.

    Battery backup, multi-protocol support, and cloud management are no longer “nice-to-have” for 2026 metering projects – they are baseline requirements. Tespro’s TD-DTU-PLUS and cloud platform reduce site visits, extend deployment life, and adapt to your existing meter mix. Ready to pilot? Visit the official Tespro DTU page to request a demo unit and access the cloud dashboard within 10 minutes.

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