GoodWe Hybrid Inverters with Second-Life EV Batteries

GoodWe ships six distinct hybrid inverter families covering single-phase and three-phase, low-voltage (48 V) and high-voltage (100–800 V) battery ports. Choosing the right series for a used EV pack starts with the pack's nominal voltage.

What GoodWe hybrid inverters do. GoodWe manufactures six hybrid inverter families: EH (single-phase HV, 3–8 kW), ET (three-phase HV, 5–30 kW), ES (single-phase LV 48 V, older 3–6 kW), EHB (single-phase HV standalone battery inverter, 100–500 V DC), BH/BT (AC-coupled retrofit battery inverter), and A-ES Split Phase (US market 120/240 V). Battery communication is CAN 500 kbps using a BYD Battery-Box-derived protocol (with LG Chem RESU frames as an alternate). Compatible EV packs range from Nissan Leaf 48 V LV re-configurations (ES series) to full-voltage Tesla Model 3/Y and VW MEB (EH, ET, EHB series).

About GoodWe

Jiangsu GoodWe Power Supply Technology Co., Ltd. is a Chinese inverter manufacturer, in operation since 2010, headquartered in Suzhou. GoodWe products carry TÜV, IEC 62109 and G99 certifications. Battery communication documentation is provided by GoodWe as "Battery Communication Protocol V3.x" — a subset of BYD Battery-Box protocol with GoodWe extensions.

Supported models

Series	Model examples	Phase	AC output	Battery DC	Comms
EH (HV hybrid)	GW3600-EH, GW5000-EH, GW8000-EH	1P	3.6–8 kW	85–460 V	CAN 500k (BYD)
ET (HV 3-phase hybrid)	GW5K-ET, GW10K-ET, GW15K-ET, GW20K-ET, GW25K-ET, GW29.9K-ET, GW30K-ET	3P	5–30 kW	200–800 V (ET-LV/ET) / 200–865 V (ETC G2)	CAN 500k (BYD)
ES (LV hybrid, legacy)	GW3648-ES, GW5048-ES	1P	3–6 kW	40–60 V (48 V nom)	CAN 500k (Pylontech)
EHB (HV battery inverter)	GW5000-EHB, GW8000-EHB	1P	5–8 kW	100–500 V	CAN 500k (BYD)
BH/BT (AC-coupled)	GW5K-BH, GW10K-BT	1P/3P	5–10 kW	100–500 V	CAN 500k (BYD)
A-ES (US split-phase)	GW7600-A-ES, GW11.4K-A-ES	Split-1P 120/240 V	7.6–11.4 kW	180–600 V	CAN 500k (BYD)

DC voltage ranges

EH series (single-phase): 85–460 V DC (per emea.goodwe.com/eh-series datasheet). Fits BMW i3 (260–395 V), Nissan Leaf (240–398 V), 400 V-class E-GMP variants (320–400 V), Tesla Model 3/Y (260–410 V), VW MEB (270–460 V).
ET series (three-phase): 200–800 V DC (ET / ET-LV) or 200–865 V DC (ETC G2, per en.goodwe.com/etc-series datasheet). Fits all 400 V-class packs. E-GMP 77.4 kWh (~480–806 V) fits within ETC G2 range if max SoC limited to ~95 % (~790 V) to give headroom against the 800 V ET ceiling.
ES series: 40–60 V (48 V nominal). Only for re-configured LV packs (Nissan Leaf modules paralleled to 48 V). Do not use for factory HV packs.
EHB series: 100–500 V DC. Same window as EH but without PV MPPT — battery-only inverter for retrofit on existing PV installs with a separate PV inverter.
BH/BT series: 100–500 V DC, AC-coupled. Battery charges from a separate PV inverter's AC output. Same battery compatibility as EH.
A-ES series: 180–600 V DC. North-American market only.

Communication protocol

All HV GoodWe hybrids use CAN 2.0B at 500 kbps with the BYD Battery-Box HVM/HVS-derived frame set. ES-series LV models use a Pylontech frame set instead.

CAN ID	Direction	Content
0x100	Battery → Inverter	Alarm and protection status
0x101	Battery → Inverter	Charge/discharge V and I limits
0x102	Battery → Inverter	SOC, SOH
0x103	Battery → Inverter	Pack V, I, T
0x104	Battery → Inverter	Cell min/max V, min/max T
0x105	Battery → Inverter	Manufacturer, model, firmware
0x150	Inverter → Battery	Inverter status, requested action

Heartbeat 1 Hz. Communication timeout 60 s. GoodWe displays "BAT COM LOSS" on the front panel when heartbeat is missed and opens the DC contactor after grace period.

Battery compatibility

EV battery pack	Voltage	Recommended series
Tesla Model 3/Y	315–403 V	EH (with charge cap 440 V), ET, EHB
BMW i3	260–402 V	EH, ET, EHB
VW MEB (ID.3/ID.4/Enyaq)	288–418 V	EH (cap 440 V), ET, EHB
Nissan Leaf 62 kWh	350–403 V	EH, ET, EHB
Hyundai/Kia 400 V E-GMP	320–400 V	EH, ET, EHB
Renault Zoe R135	300–400 V	EH, ET, EHB
Nissan Leaf 24/30/40 (48 V reconfig)	42–58 V	ES only
Hyundai/Kia 800 V E-GMP	500–800 V	Not supported (exceeds 600 V ET ceiling at charge)
Porsche Taycan / e-tron GT	612–835 V	Not supported

Wiring architecture

┌───────────────────┐ ┌────────────────┐ ┌──────────────────┐ │ EV battery pack │ │ BMS-EV │ │ GoodWe hybrid │ │ (Tesla / i3 / │ HV DC │ Controller │ CAN │ Battery port │ │ MEB / Kona EV) │──────►│ (precharge + │──────►│ 100–450 V (EH) │ │ │ │ translator) │ │ 180–600 V (ET) │ │ Vehicle BMS kept │ CAN │ BYD frame │ │ 100–500 V (EHB) │ │ alive by 12 V │◄─────►│ emulator │ │ │ │ from BMS-EV aux │ │ │ │ PV MPPT (EH/ET) │ └───────────────────┘ └────────────────┘ └────────┬─────────┘ │ │ AC 230 V (EH/EHB/BH) │ AC 400 V 3P (ET/BT) │ AC 120/240 V (A-ES) ▼ Grid + loads

Common integration guides

Known limitations

ES series is legacy. GoodWe positions ES as end-of-life and lithium-only support is limited to Pylontech-emulating BMSes. Firmware updates for ES are infrequent.
ET 600 V ceiling. Below the 800 V native pack window. Not usable with Porsche Taycan, Audi e-tron GT, or 800 V E-GMP packs.
Battery brand lock in some firmware. Certain GoodWe firmware releases whitelist BYD/LG Chem/Pylontech serial numbers. BMS-EV emits a whitelisted manufacturer/model string; verify the inverter accepts it on commissioning.
Single battery input. One DC battery port per inverter. Parallel packs require external paralleling with matched voltage — not recommended.
EHB and BH/BT are battery-only. No PV MPPT input — pair with a separate PV inverter and AC-couple.

FAQ

Which GoodWe series should I use for a Tesla Model 3 pack?

ET for three-phase installations (5–30 kW range) or EH for single-phase homes up to 8 kW. Both accept Tesla's 315–403 V window; set charge target ≤440 V on EH to preserve headroom.

Can I use GoodWe ES with a factory HV EV pack?

No. ES is a 48 V LV inverter. Only re-configured LV blocks (typical Leaf 24/30/40 kWh re-wired to 48 V) fit ES. Factory HV packs (Tesla, i3, MEB, E-GMP) belong on EH, ET or EHB.

Does GoodWe support 800 V batteries (Taycan, Ioniq 5)?

No. The highest GoodWe DC ceiling is 600 V (ET series). Native 800 V packs exceed this at charge.

What is the difference between EH and EHB?

EH is a hybrid inverter with PV MPPT and battery in one unit. EHB is battery-only — no PV MPPT. Use EHB when you already have a PV inverter and want to add battery storage without replacing the PV inverter.

Can GoodWe be used off-grid?

Yes. EH, ET, and A-ES support off-grid backup via an EPS output. Autonomous switchover ≤20 ms. Full off-grid (no grid at all) supported by ET with battery-driven grid-forming firmware.

How does the BMS-EV controller handle the manufacturer whitelist?

BMS-EV emits a manufacturer/model string on CAN ID 0x105 that matches a whitelisted BYD Battery-Box model. Verify the string is accepted by observing the inverter portal show "BYD Battery-Box HVM" or similar under battery brand.

Which grid codes does GoodWe support?

EN 50549, VDE-AR-N 4105, CEI 0-21, G98/G99, RD 1699, AS/NZS 4777.2, plus a wide selection of regional codes. Set at commissioning.

Shop GoodWe-compatible BMS-EV controllers

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Last updated: 2026-09-18

Current firmware: 15.0.14

Technical author: BMS-EV engineering team (Clima Boost sp. z o.o., Poland)

Reviewer: Jakub Lipiński, founder/lead engineer BMS-EV

Revision: 2026-09-18 — aligned with firmware 15.0.14, SOFAR 180–800 V DC verification, Kia EV6 + SOFAR HYD 15KTL case study reference

Parameter	Value	Source
EH series battery voltage	85–460 V DC	GoodWe EH series (emea.goodwe.com)
ET series battery voltage	200–800 V DC (ET / ET-LV) / 200–865 V DC (ETC G2)	GoodWe ETC series, ET G2 datasheet
CAN protocol	BYD Battery-Box-derived, LG Chem RESU alternate	GoodWe BMS communication protocol V1.7+