| Design float life（25℃） | 5 years |
| capacity（25℃） | 20HR（1.05A，1.75V）；21AH |
| Dimensions (length * width * height)mm | 176*167*125 |
| weight（KG） | 7.5 |
| Internal resistance of charge saturation state（25℃） | 12.5mΩ |
| Self-discharge（25℃） | About 3%/month |
| The relationship between capacity and temperature（20HR） | 40℃，102% |
| Supplementary power requirements | recycle；14.4-15.0V（-30mv/℃） |
| Maximum supplementary current | 4.0A |
Back-up model: Three-year warranty and one-year warranty for built-in battery
Online models: three-year warranty
Battery products: three-year warranty
After-sales service contact information throughout the country: Contact us
7*24 hours service telephone: 400-830-8833
