Product Features
This serirs product is specially designed for the application characteristics of pure electric lithium battery low speed car and household energy storage system. This series product adopts centralized all-in-one structure, and the battery measurement unit supports 12-48 series battery pack combination, and compatible with lithium manganate battery, ternary battery, lithium iron phosphate battery and lithium titanate battery and other batteries. Hardware can support multi-channel signal input detection and communication signal data output, and software functions can be developed according to the field of product development flexibility.
Application
Household energy storage system:
48V400Ah lifepo4 battery Cabinet Technical Parameters:
No. | Item | unit | Parameters | Remark |
1 | Nominal Capacity | Ah | 400 | Capacity according to standard discharge rate, after standard charge rate. |
2 | Nominal Voltage | V | 48 | Average Voltage according to standard discharge rate, after standard charge rate. |
3 | Charge Type | / | CC/CV | |
4 | Charge Cut-off Voltage | V | 58.4 | / |
5 | Discharge Cut-off Voltage | V | 40 | Recommendation parameters for customers' controller |
6 | Standard Charge current | A | 120 | special chargers |
7 | Standard Discharge current | A | 120 | CC |
8 | Maximum working current | A | 200 | CC |
9 | Pulse Discharge Current | A | 1000 | <10s |
11 | Weight | kg | ≤208 | net weight of battery pack |
12 | Inner Resistance | mΩ | <0.6 | single cell |
13 | dimension(L×W×H) | mm | customized | |
14 | Working temperature | Charge | ºC | 0~45 | / |
Discharge | ºC | -20~65 | / |
15 | Storage temperature | One month | ºC | -20~60 | / |
Three months | ºC | -20~45 | / |
One year | ºC | -20~25 | / |
Atmospheric pressure | KPa | 86~106 | / |
Relative humidity | RH | 25%~80% | / |
BMS Part Functional Description
1. BMS self-checking
2. Single cell voltage detection
3. Single cell temperature detection
4. Passive balanced
5. Battery pack working current detection
6. Total voltage detection of battery pack
7. Insulation monitoring
8. Battery pack SOC estimation
9. Battery pack SOH estimation
10. Battery pack SOF estimation
11. High voltage power supply & power off management
12. Battery thermal management
13. Battery malfunction analysis and online alarm
14. Communication with CAN-bus equipment of vehicle equipment
15. Battery safety charge management
16. Data recording and reading
17. Delayed to turn off power management
BMS Main Technical Parameters:
No | Item | Parameters |
1 | Basic Parameters | BMS working voltage range | 12V(9V~16V) |
2 | BMS Operating power (rated / peak) | 3W/26W |
3 | BMS Static power consumption | 50μA |
4 | BMS Operating temperature range | -40ºC~85ºC |
5 | BMS Storage Temperature Range(ºC) | -40ºC~95ºC |
6 | BMS Operating Humidity Range(%) | 0~95% |
7 | Single cell voltage detection range | 0~5V |
8 | Single cell voltage sampling accuracy | ≤±10mV(2V~5V@-25ºC~55ºC) |
9 | Single cell voltage sampling frequency | <30mS |
10 | Total voltage detection channel number | 1(Check the internal total voltage and the external total voltage) |
11 | Total voltage measurement range | 5V-250V |
12 | Total voltage detection accuracy | <0.5%FSR(FSR:Full-Scale Range) |
13 | Temperature measurement range | -40~80ºC |
14 | Temperature detection accuracy | <±2ºC(NTC) |
15 | Current detection accuracy | <1%FSR(FSR:Full-Scale Range) |
16 | Insulation monitoring | Divided into three situations, 0: no fault (> 500 ohms / volts), 1: general failure (100 to 500 ohms / volts), 2: Severe fault (<100 ohm / volts) |
17 | SOC estimation accuracy | <8% (BEV (Battery Electric Vehicle) working condition) |
18 | Insulation fault judgment basis | GB/T 18384.3-2001 |
19 | Balanced mode (Either-or) | Passive balanced:100mA(Ternary materials) Active balanced:300mA(CC/CV charging) |
20 | External CAN interface number | Three road (CAN battery, CAN0 Vehicle, CAN2 Vehicle ) |
21 | relay control road number | 5 roads (control power positive) |
22 | Relay power (peak) | EV200(3.8A)/LEV100(1.0A)/CMA31(0.5A) |
23 | EMC performance testing | E-POW Enterprise reference standard |
24 | Fault data record | YES |
25 | Battery parameter table | * Party A to provide |
26 | List of battery management systems | * Party B (E-POW) to provide |
27 | Battery box battery layout and wiring diagram | * Party A to provide |
Battery quality control for after-sale
All of E-POW battery cells in a pack are with very high consistency.In a pack, each cell has its ownsole electronic code(ID number) for quality control after-sale. Assume one cell in a pack is damaged in any reason after several years later, we could provide a exactly same cell to the client to replace this damaged one(same voltage, capacity, impedance,etc.), in order to make sure all of the cells in this pack with very high consistency. E-POW has a strong system working for this.
About E-POW
Huizhou Epower electronics co., ltd (E-POW) was founded in 2006, mainly engaged in Electronic Vehicle and ESS product development, production, sales and services, is a leading provider of battery management system(BMS) with high tech and high market share.
With high performance and high reliability, our BMS has been mass produced and widely used in Electronic Bus for many major international events , as well as commercial vehicles and passenger cars.E-POW has conducted a wide range of cooperation with many well-known companies. The produced BMS has passed strict testing and trial use of car manufacturers, batch supply realized.
E-POW E-Power have total 800 staffs, including more than 230 research and develop staffs, and has strong technical strength, a number of employees with doctor and master degrees form a professionally technical team, also builds strong cooperation relationship with famous BMS institutes such as Beijing Jiaotong University, South China University of Technology. The products have won Software Products certification. E-POW has owned more than 100 patents about BMS and passed TS16949, ISO 90001, OHSAS18001, ISO14001 ,IRIS (rail transact certification) etc. quality management system, and obtained the title of China High-Tech enterprise.
FAQ
Q What is the MOQ ?
A 50pcs
Q Can I mix different designs?
A Sure!
Q Can I get a lower price if I order large quantities?
A Yes, cheaper prices with more bigger size orders.
Q Can I add or delete items from my order if I change my mind ?
A Yes, but you need to tell us asap. If your order has been done in our production line, we cannot change it. It is about 2 days after confirming the order.
Q Can I get the pre-production sample ?
A Yes, we will send you pp sample, after you confirm, then we will start production.
Q When you ship my order?
A Normally 30 days after receiving your payment, but it can be negotiated based on order qty and production schedule. If special requirement, we can negotiate.
Q How about the quality guarantee period?
A three year! If special requirement, we can negotiate.
Q How can you guarantee the production quality ?
A Our production quality follow ISO9001, ISO16949, ISO 90001, OHSAS18001, ISO14001 ,IRIS, SGS, etc. standard . We have 10 years experience of QC team. We have strictly quality control system in our production process. We have many times inspection for each finished product before package,and Third party inspection acceptable.