Key technology of battery management system for 14.8V Military Pack with Smbus
1. requirements of battery management system on sensor signals for Smart Battery Smbus
2 single chip voltage acquisition accuracy 10.4Ah Lithium Battery Pack
In general, every battery voltage in a battery pack needs to be collected for safety monitoring. Different systems require different precision.
NO. | Items | Specifications | ||
1 | Charge voltage | 16.8V | ||
2 | Nominal voltage | 14.8V | ||
3 | Initial impedance | 220mΩ | ||
4 | Nominal capacity | 10Ah | ||
5 | Minimum capacity | 9.6Ah | ||
6 | Communication methods | SMBUS data communication | ||
7 | Charge current | Standard Charging::0.2C5A(2A) Rapid charge:1.0C5A C(10A) Max | ||
8 | Standard Charging method | 2A(0.2C5A) CC(constant current)charge to 16.8V,then CV(constant voltage 16.8V)charge till charge current decline to ≤100mA(≈0.01C5A) | ||
9 | Charging time | Standard Charging:6.5hours(Ref.) Rapid charge: 2.5 hours(Ref.) | ||
10 | Max.discharge current | 10A(1.0C5A) | ||
11 | Discharge cut-off voltage | 10.0V | ||
12 | Shelf life | 2 years | ||
13 | Cycle life (0.2C5A/0.2C5A) | 300 times,≧80%DOD | ||
14 | Operating temperature | Charging: 0℃~45℃ Discharging:-20℃~+60℃ | ||
15 | Storage temperature | Less than 1 month | -10℃~+45℃ | Percentage of recoverable capacity :85% |
Less than 6 month | -20℃~+35℃ | |||
16 | Pack Weight | Approx:820g | ||
17 | Pack Dimension | Length: Max76.00 mm Width: Max76.00mm Thickness: Max 78.00 mm |