At Better Life Batteries, we specialize in Tesla battery packs directly from electric vehicles (EVs), giving them a second life as reliable, high-capacity energy storage solutions.
A key part of our tech is the communication bridge we’ve engineered between the EV battery and solar inverters. We act as a translator between the Battery Management System (BMS) and supported solar inverters (Fronius, Sungrow, Goodwe, SMA, etc)
This approach allows us to keep the original EV battery intact with the original BMS as it was built from factory to guarantee optimal performance and safety.
Tech Details at a Glance
Battery Type: EV batteries come in a few varieties with differences in chemistry and capacity.
Capacities range from 57.5kwh to 75kwh.
Check out available batteries for specific specifications.
BMS: Original EV-integrated Battery Management System
Inverter Compatibility: Compatible with most modern solar inverters
Safety Features: BMS built in protections such thermal management and voltage protection. Additional safety features have also overlayed such as cell voltage difference monitoring.
1. Intact EV Battery Pack
We use the original Tesla LFP 60 kWh battery without dismantling the modules, ensuring the pack remains in its factory configuration.
This preserves the safety features, balance, and performance built into the original pack.
2. Seamless Inverter Integration
Our battery packs are designed to integrate easily with existing solar inverters commonly available in the market.
We provide guidance on compatible inverters and ensure that the battery communicates effectively with your system to maximize efficiency.
3. Battery Management System (BMS)
The original BMS from the EV remains intact, maintaining cell balancing, temperature monitoring, and safety protocols just as it did in the vehicle.
This means no aftermarket BMS modifications are required, reducing complexity and ensuring manufacturer-level safety standards.
Features Included
Here is a bit more detail about what makes a better life battery... better.
Emergency stop button - this closes the battery contactors isolating the battery supply, allowing emergency services to access the property safely.
Auxiliary Battery Recovery - helping out in the background is monitoring of the auxiliary battery; this power source is used to close big batteries’ main contactors safely. We have included a health monitoring circuit to make sure this battery stays charged and a recovery button to ensure hassle-free startup.
Lightning Protection - did you know that battery-to-inverter communication lines are particularly sensitive to storms? We include lighting and surge protection to keep the battery BMS safe from damage.
Stand and Weather Guard - We are now including stands (horizontal & vertical options) as standard with our batteries. Contact
Advantages of Using EV Battery Packs ‘As Is’
1. Factory-Grade Safety & Reliability
Retaining the original BMS ensures that the pack operates within safe parameters, protecting against overcharging, overheating, and voltage imbalances.
Higher Power Output
EV batteries are designed to handle high power loads, making them ideal for grid storage applications with faster charging and discharging capabilities.
Simplified Integration
• Using the intact battery pack makes integration with existing inverters smoother, reducing complexity and minimizing potential compatibility issues.
Extended Lifespan
EV battery packs are engineered for thousands of charge cycles, ensuring long-term performance even after transitioning from vehicle use.
Cost Efficiency
Compared to traditional home storage systems (e.g., Tesla Powerwall), EV battery packs provide significantly more storage capacity per dollar.
Larger Systems
Because the battery packs maintain their original configuration, there cell density is higher delivering more capacity.