2021 liitokala 29.4v 2a battery pack 7s electric bike lithium charger for batteries

4. led indicator sign: red and green, two-color indication, red charging green completed or standby 5. efficiency: more than 85% 6. mtbf: 30000 hours 7. main export markets: asia/eastern europe/middle east/africa/oceania/north america/central/south america/western europe led lights: led1: red power on led2: red charging led2: green charging charger function 1. short circuit protection 2. overcurrent protection 3. overvoltage protection 4. reverse polarity protection 5. overheating protection note: if you need other chargers or other connectors, please contact us directly. thank you