Weiheng + Beny

What Zerofy can do with Weiheng and Beny

In practice

• Zerofy adjusts the charging current of your Beny charger but doesn’t switch phases. On a three-phase connection, solar charging needs at least about 4.1 kW of surplus (6 A × 3 × 230 V); on a single-phase connection about 1.4 kW.
• A typical Weiheng home system (3.6–13 kW) needs a sunny midday to reach the 4.1 kW three-phase minimum. Wired single-phase, the charger starts from about 1.4 kW but charges at no more than about 3.7 kW.
• Zerofy gets new Weiheng data every 5 minutes and adjusts accordingly. A minimum runtime and an activation threshold in Autopilot keep passing clouds from interrupting charging.
• Zerofy also shows your Weiheng battery, so you can see whether surplus goes into the battery or into the car.
• If your car is connected to Zerofy too, turn on Autopilot for either the car or the charger, not both.
• The standard load-balancing kit is not the same as the Solar DLB box: only the solar version unlocks the PV and Hybrid modes. Via OCPP, Zerofy sets the charging power but not the phases, so on a three-phase BENY charging needs at least 6 A per phase, about 4.1 kW of surplus.

What Weiheng and Beny offer on their own

Weiheng: WHES sells its own AC chargers (e.g. WH-ECA-7.0 with 7 kW, 32 A, plus a 22 kW model) that it describes as compatible with PV and battery systems, with load balancing. The ECOS app manages EV chargers, but WHES doesn’t publish how surplus charging works or which third-party wallboxes are supported.

Beny: BENY’s own solar charging needs its Solar DLB box with current clamps at the house connection, configured in the Z-BOX app. It offers “PV” mode (keeps grid draw close to 0 A), “Hybrid” mode (solar plus grid within the DLB limit) and “Full speed”; it does not talk to the inverter.

Zerofy connects the two: it reads Weiheng production and controls your Beny charger to match, together with your other devices in one app, with dynamic tariffs and forecast-based Smart mode.

Setting up Weiheng and Beny in Zerofy

1. Connect Weiheng

Zerofy connects through Weiheng’s partner cloud: you enter your system’s serial number in Zerofy, and Zerofy links the device and reads inverter, meter and battery data.

1. Make sure your Weiheng system is online.
2. In Zerofy, choose Weiheng and enter the serial number of your system.

2. Connect Beny

Zerofy has a dedicated BENY entry in the app, which connects via OCPP; Zerofy can then start, stop and set the charging power.

1. In Zerofy, add a BENY charger and copy the OCPP URL.
2. Paste it into the OCPP settings of your charger’s configuration app.
3. Wait until the charger connects to Zerofy.

Step-by-step guide for Beny

3. Turn on Autopilot

In Zerofy, open your Beny charger, turn on Autopilot and choose Solar – or Smart to also use dynamic tariffs and forecasts. Set the priority, activation threshold and minimum runtime.

Dynamic tariffs

Zerofy can also run your Beny charger on dynamic electricity prices (EPEX Spot or Nord Pool, e.g. Tibber or aWATTar) or on a fixed time-of-use tariff. Smart mode combines those prices with forecasts of your household consumption and your Weiheng solar production.

Learn more about Smart Mode

About Weiheng and Beny

Weiheng – Weiheng (Jiangsu Weiheng Intelligent Technology, Wuxi, China) is a battery storage maker; in 2025 Weiheng Energy Storage and its home brand ECACTUS were merged into the WHES brand. For homes it sells all-in-one hybrid storage systems: the single-phase PP-S2 (3.6–10 kW, 4.99–19.9 kWh) and the three-phase PP-T1 (5–13 kW, 9.98–29.94 kWh). Monitoring app: ECOS.

Beny – BENY is a Chinese maker of low-cost wallboxes with open OCPP 1.6J, Wi-Fi, Bluetooth and an optional load-balancing kit. It is sold mainly through regional importers and installers, so availability and support depend on your local partner. Products: BENY BCP smart wallbox (7.4 / 22 kW).

Manufacturer information last checked: October 2026.

All devices that work with Weiheng