Home › Integrations › VW MEB + Deye
Volkswagen Group MEB packs (VW, Skoda, Audi, Cupra, Ford) pair with any Deye SUN HP3 three-phase hybrid inverter through a BMS-EV controller. This is the most common HV EV-battery-to-hybrid pairing in the field.
Integration in one sentence. Any MEB pack (48, 52, 55, 58, 62, 77, 82 kWh — from VW ID.3, ID.4, ID.5, ID.7, ID. Buzz, Skoda Enyaq, Audi Q4 e-tron, Cupra Born or Ford Explorer EV / Capri EV) connects to a Deye SUN HP3 hybrid inverter (5, 8, 10, 12, 15, 20, 25, 30 or 50 kW) via a BMS-EV controller that reads the MEB CAN protocol and emits Pylontech-compatible CAN frames on the Deye's battery port. The pack's 310–460 V operating window is entirely within the Deye's 160–700 V (5–25 kW) / 160–800 V (29.9–50 kW) DC range, so no DC-DC conversion is required.
| Deye model | Rated AC | Phases | DC input range | Max battery current |
|---|---|---|---|---|
| SUN-5K-SG04LP3 | 5 kW | 3-phase | 160–700 V (5–25 kW) / 160–800 V (29.9–50 kW) | 50 A |
| SUN-8K-SG04LP3 | 8 kW | 3-phase | 160–700 V (5–25 kW) / 160–800 V (29.9–50 kW) | 50 A |
| SUN-10K-SG04LP3 | 10 kW | 3-phase | 160–700 V (5–25 kW) / 160–800 V (29.9–50 kW) | 50 A |
| SUN-12K-SG04LP3 | 12 kW | 3-phase | 160–700 V (5–25 kW) / 160–800 V (29.9–50 kW) | 50 A |
| SUN-15K-SG04LP3 | 15 kW | 3-phase | 160–700 V (5–25 kW) / 160–800 V (29.9–50 kW) | 50 A |
| SUN-20K-SG04LP3 | 20 kW | 3-phase | 160–700 V (5–25 kW) / 160–800 V (29.9–50 kW) | 60 A |
| SUN-25K-SG04LP3 | 25 kW | 3-phase | 160–700 V (5–25 kW) / 160–800 V (29.9–50 kW) | 60 A |
| SUN-30K-SG04LP3 | 30 kW | 3-phase | 160–700 V (5–25 kW) / 160–800 V (29.9–50 kW) | 75 A |
| SUN-50K-SG01HP3 | 50 kW | 3-phase | 200–800 V | 60 A |
Single-phase Deye SUN HP1 models are also supported but are rarely paired with MEB packs — a 77 kWh pack's power potential is under-utilised on single-phase.
The MEB pack's electrical envelope maps cleanly to the Deye battery port:
| Parameter | MEB (77 kWh, 108s) | Deye SUN HP3 | Fit |
|---|---|---|---|
| Minimum voltage | 310 V (empty) | 160 V min | Fits with 150 V headroom |
| Nominal voltage | 400 V | — | Mid-range |
| Maximum voltage | 460 V (full) | 500 V max | Fits with 40 V headroom |
| Continuous discharge current | 200 A pack rating | 50–75 A inverter side | Inverter-limited |
96s (small) MEB packs — 48/55/58 kWh — operate 270–410 V. Still comfortably inside Deye's 160–700 V (5–25 kW) / 160–800 V (29.9–50 kW) range.
Deye SUN HP3 speaks a Pylontech-compatible dialect on its battery CAN port. The BMS-EV controller reads MEB frames and re-encodes them:
| Field | Source (MEB frame) | Target (Pylontech-like frame to Deye) |
|---|---|---|
| Pack SOC | 0x1A5555xx byte 4 (0.5 %/bit) | 0x355 bytes 0-1 (1 %/bit) |
| Pack voltage | 0x1A5555xx bytes 0-1 (0.1 V/bit) | 0x356 bytes 0-1 (0.01 V/bit) |
| Pack current | 0x1A5555xx bytes 2-3 (0.1 A/bit, signed) | 0x356 bytes 2-3 (0.1 A/bit, signed) |
| Cell max/min voltage | 0x1B0555xx bytes 0-3 | 0x373 bytes 0-3 |
| Charge current limit | 0x1C0555xx bytes 0-1 | 0x351 bytes 2-3 |
| Discharge current limit | 0x1C0555xx bytes 2-3 | 0x351 bytes 4-5 |
| Max charge voltage | Derived from cell max + 108× headroom | 0x351 bytes 0-1 |
| Alarms (over/under V, over T) | 0x1D5555xx flags | 0x359 byte 0 |
The Deye inverter polls the "battery" every 1 s and considers a battery offline if it stops seeing 0x351, 0x355 and 0x356 for 30 s. BMS-EV sends all three at 1 Hz.
2023+ MEB2 introduced the 52 kWh LFP variant in ID.4 and Q4 e-tron. The BMS reports its chemistry byte on the MEB CAN bus; BMS-EV reads it during startup and selects the appropriate SOC curve and charge voltage target before sending the first 0x351 frame to the Deye. Deye does not need to know the underlying chemistry — it only uses the current-limit and voltage-limit values that BMS-EV computes for it. Controllers with firmware < v3.2 must be reflashed to handle LFP chemistry.
Engineering values below are examples. Final conductor cross-section and protective-device sizing must be calculated for the actual pack, maximum current, cable length, installation method, ambient temperature and applicable local standards (IEC 60364-7-712, VDE-AR-N 4105, NEC 690).
Cable specifications for a 10 kW Deye + 77 kWh MEB pack:
The Deye SUN HP3 has its own DC bus capacitors (~4 mF for 10 kW class). Closing the MEB main contactors directly into a discharged inverter capacitance would trip the pack's inrush protection. The BMS-EV controller drives the precharge contactor first via the pack's own precharge circuit (~30 Ω series resistor), waits for the DC bus to charge to within 5 % of pack voltage, then closes the main contactors and opens precharge. Typical sequence duration is 400–800 ms.
0x351/355/356 for more than 30 s, Deye enters "battery offline" and opens its DC contactor. This is by design and cannot be disabled from the Deye side.Deye SUN HP3 firmware from 2022 onwards accepts the Pylontech CAN dialect the BMS-EV controller emits. Deye's own protocol selector on the LCD must be set to "Pylon" for the battery type, and battery capacity should be entered as the MEB pack's rated Ah (typically 195 Ah for a 77 kWh 108s pack).
The Deye 10K-SG04LP3 rounds to about 10 kW AC / 12 kW DC. The MEB pack itself is rated well above this (~50–80 kW). In practice the inverter is the bottleneck. For higher-power installations, use the 20K, 25K, 30K or 50K variants; the 50K goes to 800 V so also supports E-GMP-class packs.
Yes. Deye supports grid-charging in its Time-of-Use and Battery-first modes, subject to the country's grid connection rules. The BMS-EV controller passes the pack's own charge-current limit to Deye as 0x351, so grid-charge current is capped correctly.
After 30 s of missing 0x351/355/356, Deye opens its battery contactor and reports "battery lost" alarm. The MEB pack itself remains safe; BMS-EV holds its main contactors open until CAN communication is restored.
77 kWh gives a good balance for a typical European household: ~65 kWh usable, 7-day autonomy at 10 kWh/day. Smaller 58 kWh packs pair well with 5–8 kW Deye variants for compact installations.
No. The pack's contactors are the primary safety element and stay in place. The BMS-EV controller commands them via CAN — the same way the vehicle would in a car.
Yes. Deye's off-grid HP3 variants share the same Pylontech CAN dialect. Configuration steps are identical.
No — MEB packs top out around 460 V, so the 50K's 200–800 V range is unnecessary. Choose the 50K when installing a very large system or when paired with an E-GMP ~697 V nominal pack (peak ~806 V) via the same inverter family (subject to E-GMP-specific integration; see the E-GMP + Deye guide for the 400 V variant only).