EVSUNDAK BMS
This BMS is mainly designed for intelligent management of small series but higher rate discharging.
This series BMS adopt the unique SOC & SOH algorithm, which provide the precision figure about the battery pack. The strong expansilbility and various communication interface allowed the user monitoring the battery state through difference medium
At the same time, the intelligent dynamic balancing function to ensure that the lithium battery group work stably and prolong the life of battery group
Application Scope
Car Storage System/ Solar LED street light / AGV (Automated Guided Vehicle)
Character
- Safety
- Accurate figure
- Extendable Life
- Strong Expansible
Feature
(1) Fully protection function:
Overcharge protection/ Overdischarging protection/Over current protection/Short circuit protection
(2) Temperature sensor monitoring
(3) Multiple communication interface
RS485 & UART for connected the bluetooth module or USB connector
(4) Accurate SOC information
Coulomb electricity calculation, provide the accurate figure about the battery SOC
(5) Intelligent dynamic balancing
(6) Excellent heat disspation
(7) Support Mosfet failure detection function
(8) Expansion function through USB dongle, bluetooth module, LCD module and 2G with GPS module
| Item | Condition | Figure | |
| 20A 40A 60A | |||
| Input Voltage | Input Voltage B+ to B- | Cell x 4.25V | |
| Cell detection voltage accuracy | ±30mV | ||
| SOC | Battery detection voltage accuracy | ±300mV | |
| Detection current accuracy | 0.03 | ||
| SOC accuracy | 0.1 | ||
| Over charge protection (single cell) | Over charge protection voltage | 4250±30mV | |
| Over charge recovery voltage | 4100±30mV | ||
| Over charge detection delay time | 1000±300mS | ||
| Over discharge protection (single cell) | Over discharge protection voltage | 2800±30mV | |
| Over discharge recovery voltage | 3300±30mV | ||
| Over discharge detection delay time | 1000±300mS | ||
| First Lever Discharge Protection | First Lever Over current protection | 40A/80A/120A±3% | |
| First Lever delay time | 5S±300mS | ||
| Second Lever Discharge Protection | Second Lever Over current protection | 60A/120A/180A±3% | |
| Second Lever delay time | 1S±300mS | ||
| Over charge current protection | Over current | 25A/45A/65A±3% | |
| Delay time | 5S±300mS | ||
| Data delay time in working mode | ≤100mS | ||
| Communication return delay time | Data delay time in standby mode (more than two commands issed, the first is communication | ||
| activated and the second is data responese) | ≤100mS | ||
| Battery capacity within 30AH | Support | ||
| Short circuit protection | Short circuit detection time | 200 - 600uS | |
| Recovery Condition | Disconnected the loading and | ||
| charging | |||
| High Temperature | Protection | 65°C (± 3°C) | |
| Discharge protection | Recovery | 60°C (± 3°C) | |
| Low Temperature | Protection | –20°C (± 3°C) | |
| Discharge protection | Recovery | –15°C (± 3°C) | |
| High Temperature | Protection | 55°C (± 3°C) | |
| Temperature Protection | charge protection | Recovery | 50°C (± 3°C) |
| Low Temperature | Protection | –5°C (± 3°C) | |
| charge protection | Recovery | 0°C (± 3°C) | |
| High Temperature | Protection | 85°C (± 3°C) | |
| mosfet protection | Recovery | 75°C (± 3°C) | |
| Communication Interface | RS485 / CANBUS / UART | RS485/UART | |
| On/off switch | External B+ input for control discharge mosfet | Support (Default setting is not) | |
| on or off | |||
| Battery Temperature Monitoring | External temperature sensor | 4pcs | |
| Balancing | Passive consumption equilibrium | Support | |
| Extendable function | PC software (USB interface) / Bluetooth / LCD | Support | |
| Loading mode | ≤30mA | ||
| Self Consumption | Standby mode | ≤300uA | |
| Hibernate mode | ≤20uA | ||
| 0V Charger | Disallowed | ||
| Max continuous discharge current | 20A/40A/60A | ||
| Max continuous charge current | 15A/35A/55A | ||
| Recommend working condition | Recommend cell capacity | Software modify according to the battery group design |
