The funcation of CTS batteies : 1. Smart BMS build-in. 2. LCD display,Breaker switch,Bluetooth are optional. 3. IP67,Support OEM & ODM. 4. High energy density ,light weight and Easy installation. 5. Fast charge, full charge in 1~3 hours. 6. Perform 3500+ cycles, design life over 10 years . 7. The following information also can be customized: