Guangdong Yijia Technology Co., Ltd.
| Min. Hole Size | 0.35 |
| Base Material | FR-4 |
| Copper Thickness | 1oz |
| Min. Line Width | 0.1mm |
| Board Size | 136*173*27.50mm |
| Board Thickness | 1.6mm |
| Surface Finishing | HASL Lead Free |
| Min. Line Spacing | 0.1mm |
| Brand Name | E&J |
| Model Number | EJ2A4S15P/20P/25P/30P |
| Place of Origin | Guangdong, China |
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Product Specification
| Min. Hole Size | 0.35 | Base Material | FR-4 |
| Copper Thickness | 1oz | Min. Line Width | 0.1mm |
| Board Size | 136*173*27.50mm | Board Thickness | 1.6mm |
| Surface Finishing | HASL Lead Free | Min. Line Spacing | 0.1mm |
| Brand Name | E&J | Model Number | EJ2A4S15P/20P/25P/30P |
| Place of Origin | Guangdong, China | ||
| High Light | Smart Active Balancer 150A ，Smart Active Balancer 300A | ||
Configuration
|
Function |
Configuration |
Function |
Configuration |
|
Number of strings supported |
4S LIFEPO4 |
485-communication (isolated) |
Optional |
|
Continuous current |
50~300A |
UART interface (isolated) |
Optional |
|
Number of NTCs |
1 built-in, 2 external |
CAN communication |
Optional |
|
Balance Function |
Active balance |
232 Communication |
Optional |
|
UART (non-isolated) |
Standard option |
Heating function |
Optional |
|
Switch function |
Optional |
Module of Bluetooth |
Optional |
|
Charging current limit |
supported |
Battery packs in series |
Supported |
|
Battery packs in parallel |
supported |
Secondary protection |
Not supported |
|
History storage |
supported |
LCD display |
Optional |
Parameters
|
Item |
Symbol |
Content |
Criterion |
|
Over charge Protection |
VCU1 |
Over charge detection voltage |
3.90±0.025V |
|
|
tCU1 |
Over charge 1stdetection delay time |
1±0.5S |
|
|
VCL1 |
Over charge 1strelease voltage |
3.80±0.05V |
|
Over discharge protection |
VDL |
Over discharge detection voltage |
2.00±0.08V |
|
|
tDL |
Over discharge detection delay time |
2±0.5S |
|
|
VDU |
Over discharge release voltage |
2.80±0.1V |
|
Continue Current |
ICHG |
Continue charge current |
150A |
|
|
IDIS |
Continue discharge current |
50-300A |
|
Over current protection |
OCIOV1 |
Charge overcurrent detection current 1 |
170A |
|
|
ODIOV1 |
Discharge overcurrent detection current 1 |
250A |
|
|
tDIOV1 |
C&DOvercurrent detection delay time 1 |
10S±100mS |
|
Short current protection
|
ISHORT |
Short circuit detection current |
Yes |
|
|
tSHORT |
Short circuit delay time |
400uS |
|
Over Short current release
|
/ |
Over current & short current release |
Load disconnection |
|
Balance function |
VBAL |
Balanced working pressure difference
|
1-10mV |
|
|
|
Balance release current
|
2A |
|
Temperature protection |
NTC |
NTC Discharge temperature protection |
-40~85 |
|
Internal resistance |
RCHG |
Resistance in charge |
<50mohm |
|
|
RDIS |
Resistance in discharge |
<50mohm |
|
Current consumption |
ISTB |
Current consume in normal operation |
<350uA |
Connections
Company Details
Business Type:
Manufacturer
Year Established:
1998
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Established in March 1998, E&J focuses on toys, automotive lighting, new energy, lithium batteries and smart BMS systems. As one of the world’s earliest manufacturers of rechargeable batteries, we produce Ni-Cd, Ni-MH, Li-ion, LiPo and LiFePO4 batteries, alongside consumer green energy pr... Established in March 1998, E&J focuses on toys, automotive lighting, new energy, lithium batteries and smart BMS systems. As one of the world’s earliest manufacturers of rechargeable batteries, we produce Ni-Cd, Ni-MH, Li-ion, LiPo and LiFePO4 batteries, alongside consumer green energy pr...
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