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BMS-EV – Use Your EV Battery as Home Energy Storage and Reduce Your Electricity Bills

BMS-EV + EV battery vs Tesla Powerwall

✅ BMS-EV Controller + EV battery
~€4,590
(€590 controller + ~€4,000 used EV battery) = 50-80 kWh
❌ Tesla Powerwall 3
~€11,000
13.5 kWh (1 unit)
💰 58% cheaper + 4× more capacity

Electric vehicle batteries are the most rigorously tested cells on the market. They pass strict automotive safety tests – far more demanding than standard home energy storage systems.

With BMS-EV products, using this technology in your home is simple and enjoyable!

BMS-EV Monitor LCD 7 Touch

Monitor LCD 7″ Touch
Wireless WiFi transmission, built-in 6000mAh battery. Real-time battery status monitoring. Data history for at least 2 years.

BMS-EV Controller

BMS-EV Controller
The heart of the system – communication with inverter and EV battery. WiFi configuration, web interface, MQTT. Support for two identical batteries with one controller.

BMS-EV Cloud

BMS-EV Cloud
Remote battery monitoring from anywhere in the world. Real-time charts, data history, alarm notifications. Annual subscription.

Why Are EV Batteries Better?

🔋 Automotive-Grade Certified Cells

EV batteries pass tests according to UN 38.3, UL 1973 and IEC 62933 standards – the most rigorous safety standards for lithium-ion cells. Typical home storage doesn’t have to meet such strict requirements.

💰 30-70% Savings Compared to New Storage

EV batteries retain 70-80% capacity after their service in the car. With 60-100 kWh capacity, they can power an average home for a whole week! The cost of such a solution is a fraction of the price of new energy storage.

🌱 Ecology and Second Life for Batteries

Instead of disposal – utilization. You extend the battery life by another 10-15 years, reduce your carbon footprint and support the circular economy. New EU regulations (2023/1542) require 70% recycling of lithium batteries by 2030.

⚡ 5-8x Less Stressed Than in a Car

At home, the battery operates in much gentler conditions – no sudden accelerations, extreme temperatures and continuous fast charging. This means longer life and stable operation.

How Does It Work?

☀️ PV → Inverter → Home – solar energy powers your home ⚡ Inverter → BMS-EV – surplus goes to storage 🔋 BMS-EV ⇆ EV Battery
Battery Management Controller
– intelligent energy management

Compatibility

BMS-EV works with batteries from the most popular electric vehicles:
  • Nissan Leaf (24-62 kWh)
  • Tesla Model S/3/X/Y
  • BMW i3
  • Volkswagen ID.3/ID.4
  • Hyundai Ioniq/Kona
  • and many others…
Supported inverters: FoxESS, SMA, Solax, Sungrow, Sofar, Deye, GoodWe and others.

Safety First

⚠️ Working with high voltage is dangerous – that’s why BMS-EV has multi-layer protection systems:
  • Continuous voltage monitoring of each cell
  • Temperature control with automatic shutdown
  • Insulation resistance analysis and leakage protection
  • FAULT mode – immediate stop when anomaly detected
  • Compliance with UL 1974 and IEC 62933-5-3 standards

Net-Billing and Savings

With net-billing, energy fed to the grid is settled cheaply, while purchased energy is expensive. BMS-EV stores surplus in the EV battery and allows you to use it in the evening when solar energy is no longer available.
  • Self-consumption up to 90%+ instead of 30%
  • Return on investment in 3-5 years
  • Grid independence during outages

Why BMS-EV?

✅ Compatible with many inverters and EV batteries
✅ Advanced BMS with monitoring of each cell
✅ Home Assistant integration (MQTT, autodiscovery)
✅ WiFi monitoring, web panel and 7″ screen
✅ Plug & play – no programming required
✅ Technical support and documentation

For Whom?

🏠 Homeowners with photovoltaics
🔧 PV and RES installers
🚗 Electric vehicle owners
⚡ Off-grid and renewable energy enthusiasts
👉 Order now and start saving!

📚 Read our complete DIY guide

Step by step: how to build home energy storage from EV batteries. 12-min guide about batteries, inverters, BMS and safety.

Open complete guide →

💬 WhatsApp — Help
Ready to build your EV battery home storage?
BMS-EV Controller from €500 — supports 47+ battery models and 12+ inverters
⚡ Get 10% off — code BLOG5 ⏳ Limited time offer
🛒 View Controllers 💬 Free Consultation