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| Categories | Battery Balancer |
|---|---|
| MOQ: | 100 |
| Min. Hole Size: | 0.35 |
| Base Material: | FR-4 |
| Model Number: | EJ2A4S15P/20P/25P/30P |
| Min. Line Width: | 0.1mm |
| Min. Line Spacing: | 0.1mm |
| Copper Thickness: | 1oz |
| Place of Origin: | Guangdong, China |
| Board Thickness: | 1.6mm |
| Surface Finishing: | HASL Lead Free |
| Price: | $69-88 |
| Board Size: | 136*173*27.50mm |
| Brand Name: | E&J |
| Company Info. |
| Guangdong Yijia Technology Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
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



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