BMS-EV Documentation

Technical reference for reusing complete EV battery packs — Tesla, BMW, Nissan, Volkswagen, Hyundai, Kia and 68 other models — as stationary energy storage with hybrid inverters.

What is BMS-EV? BMS-EV is a controller platform that enables complete electric vehicle battery packs to be reused as stationary energy storage by communicating with the vehicle's original battery management system and translating that data into the CAN protocol expected by compatible hybrid inverters.

How EV battery reuse works

A complete electric vehicle battery pack retains 70–90% of its original capacity after 5–10 years of use. Instead of recycling, it can serve another 8–15 years as stationary storage — provided its original battery management system (BMS) is kept in place and safely bridged to a compatible hybrid inverter.

┌────────────────────┐ │ EV battery pack │ │ (Tesla, BMW, VW…) │ │ Original BMS │ └─────────┬──────────┘ │ CAN ▼ ┌────────────────────┐ │ BMS-EV Controller │ │ Protocol bridge │ └─────────┬──────────┘ │ CAN ▼ ┌────────────────────┐ │ Hybrid inverter │ │ (Deye, SOFAR, │ │ GoodWe, SMA…) │ └────────────────────┘

BMS-EV controllers ship pre-configured for a specific battery + inverter combination. The controller reads state-of-charge, cell voltages, temperatures, charge/discharge limits from the vehicle's original BMS over CAN, and reports them in the format expected by the hybrid inverter.

Coverage at a glance

73 EV battery models

From Tesla Model 3/Y/S/X to BMW i3/iX/i4, Nissan Leaf/Ariya, VW MEB, Hyundai/Kia E-GMP, Stellantis CMP/e-CMP, Renault Zoe/K-ZE, and more.

56 hybrid inverters

Deye, SOFAR, GoodWe, SolaX, SMA, Fronius, Sungrow, Solis, FoxESS, Kostal, Growatt, SAJ, Huawei and Ferroamp.

3,800+ pre-configured combinations

Each ships as a ready-to-install controller with the correct CAN mapping and voltage range for the pair.

300+ controllers delivered

To customers since 2024. Site available in 26 languages, shipping worldwide.

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Last updated: 2026-09-17
Coverage: 73 batteries × 56 inverters
Delivered: 300+ controllers since 2024