Industry-leading, Complete-system Warranty, more lifetime free service trust by installer
| Cosun® Complete Confidence Warranty |
vs | Conventional Solar Battery Warranty |
|---|---|---|
| ✔ | Complete system | Battery Performance & Capacity only |
| ✔ | Removal of defective part | ✖ |
| ✔ | Installation of new part | ✖ |
| ✔ | Shipping | ✖ |
| 10 years | Product warranty term | 5-7 years |
The only solar warranty to cover your complete system for 10 years—including performance and parts. We have absolute confidence in our battery system's
ability to store,deliver more energy, reliability and savings over time.
Over five years service records from our partner in Pforzheim Germany
Not only service but free upgrading for all our customers.
Service including detailed surveys are the ground root to our continuous improvement
Unrivaled Active Battery/Cell Equalization Performance
The Cosun Residential battery storage system features the most efficient 2A DC-DC Active balancing technology on the market.
Because better balance means more power, much longer cycling life and more savings,forget all the cheap passive balance now.
Free Remote Maintenance - Cosun Unique Battery Cloud
By adding a small, compact DTU (Data Transfer Unit) with wired internet or WIFI,cosun's battery storage system is connecting to
the Battery Cloud platform, it not only monitor,record the operational data, but also can set the battery parameter and upgrade the
BMS firmware online just with a few clicks, thanks to the Modbus cloud system that can reduce intaller's site visits to the minimal.
