6-20S Battery Management system BMS With SMBus,UART, RS485, CANBus communication protocol for Li-ion/Li-Polymer/LiFePO4
Brand Name:BEST
Certification:CE
Model Number:BEST-D338
Minimum Order Quantity:1000PCS
Delivery Time:7 DAYS AFTER RECEIVE PAYMENT
Payment Terms:TT IN ADVANCE
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Location:
Shenzhen Guangdong China
Address:
NO.13,RUYI ROAD,XINLIAN COMMUNITY,LONGCHENG STREET,LONGGANG,SHENZHEN
Supplier`s last login times:
within 30 hours
Product Details
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Product Details
Features and Benefits
Programmable BMS with SMBUS, UART, RS485, CANBus Communication protocol
BEST-D338 BMS main functions descriptions:
1.Integrated with Microchip, designed for Li-ion / Li-Po
(3.6V/3.7V) and LiFepO4 (3.2V), configured from 6S till
20S,accurate SOC/SOH by detecting voltage and current, able to
detect the voltage of signal cell.
2.4 channels of temperature-measurement with NTC, software and
hardware protection on over-high-voltage,over-low-voltage,
over-current, over-temperature and short-circuit.
3.Programmable all logical parameters even on delay time of all the
protection procedures.
4.Pre-charge function ( to active the cell’s from over-low-voltage)
5.Intelligent cell balancing function management.
6.EEPROM function to save the production processing files, history
records of charges.
7.SMBUS, UART, RS485, CANBus protocol.
8.Thru the communication, BMS can send the discharging and charging
voltage/current, temp. information to the end-application and take
action on protections
9.Support LED display for fuel/gas gauge (with a button switch to
display out the information)
10.With multi-working modes, such as working mode, energy-saving
mode, sleeping mole to reduce the current consumption (system can
easily be back to normal working mode from sleeping mode or
energy-saving mode).
Specifications
| Item | Contents | Criteria | |
| 1 | Model | BEST-D338 | 6S-20S |
| 2 | Voltage | Charging voltage | Adjustable from software |
| 3 | Current | Maximal continuous charging current | 80A (adjustable from hardware) |
| Maximal continuous discharging current | 80A (adjustable from hardware) | ||
| Current consumption | ≤200μA | ||
| 4 | Overcharge Protection | Over charge detection voltage | Adjustable from software |
| Over charge detection delay time | Adjustable from software | ||
| Over charge release voltage | Adjustable from software | ||
| 5 | Over Discharge Protection | Over discharge detection voltage | Adjustable from software |
| Over discharge detection delay time | Adjustable from software | ||
| Over discharge release voltage | Adjustable from software | ||
| 6 | Over Current Protection | Over current detection voltage | Adjustable from software |
| Over current detection current | Adjustable from software and hardware | ||
| Detection delay time | Adjustable from software | ||
| Release condition | Adjustable from software | ||
| 7 | Short Circuit Protection | Detection condition | Adjustable from software |
| Detection delay time | Adjustable from software | ||
| Release condition | Cut load, automatically recover | ||
| 8 | Balance | Balance voltage for single cell | Adjustable from software |
| Balance current for single cell | Adjustable from hardware | ||
| 9 | Resistance | Inner resistance | ≤20mΩ |
| 10 | Temperature | Single cell temperature when discharge (over temp. protection) ≥65℃ | Adjustable from software |
| Single cell temperature when discharge (low temp. protection) <-40℃ | Adjustable from software | ||
| Single cell temperature when Charge (over temp. protection) ≥50℃ | Adjustable from software | ||
| Single cell temperature when Charge (low temp. protection) <0℃ | Adjustable from software | ||
| 11 | Fuel/Gas gauge | Display with LEDs | Thru one button to check capacity |
Connection Diagram
Self-consumption in different working modes:
· Normal Operating Mode: 13mA typical, 18mA maximum self-consumption.
· Sleep Mode: 200μA typical, 300μA maximum self-consumption.
· The system automatically back to normal operating mode from sleeping mode if current is <2A after no communication signal for 60mins.
· The system also will be back from sleep mode to normal operating
mode if any charge or discharge activity is detected or if there’s
communication signal again
Voltage protection
· As soon as one cell’s voltage exceeds the protection point, the charging process will be interrupted on the whole pack. The protection circuit returns to normal conditions as soon as all the cell’s voltage falls back to normal. Thedischarge will be allowed and the cell balancing will be activated.
· As soon as one cell’s voltage is under the protection point, the
discharging process will be interrupted on the whole pack, BMS will
be in energy-saving mode, The protection circuit returns to normal
operation mode as soon as all the cell’s voltage charged back to
normal. When BMS protected up on discharging, the charging
processing is still allowed.
Current protection
· Software:
>>As soon as the discharging current exceeds the over current detection current during the detection delay time, the discharging process will be interrupted. The BMS returns to normal conditions after over current detection current released.
· Hardware:
>>As soon as the discharging current exceeds the over current
detection current during the detection delay time, the discharging
process will be interrupted. The BMS returns to normal conditions
after over current detection current released.
ESD:
Battery is protected against electrical discharges:
- 15kV air
- 8kV contact
6-20S Battery Management system BMS With SMBus,UART, RS485, CANBus communication protocol for Li-ion/Li-Polymer/LiFePO4
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