1. Technical parameters
Serial number |
Test items |
Specification |
Unit |
Remarks |
|
1 |
Current |
Permanent discharge current |
20A-25A |
A |
|
|
|
Instantaneous discharge current |
30A-40A |
A |
|
2 |
Voltage |
Charging voltage |
Lithium battery charger 5V |
V |
|
|
|
Recharging current |
/ |
A |
|
3 |
Overcharge protection |
Overcharge detection voltage |
3.75-4.25±0.05V |
V |
Single core |
|
|
Overcharge protection delay |
0.5 |
S |
|
|
|
Overcharge release voltage |
3.6-4.08±0.05V |
V |
Single core |
4 |
Power balance |
Cell balance detection voltage |
/ |
V |
|
|
|
Cell balance release voltage |
/ |
V |
|
|
|
Cell balancing current |
45±5 |
mA |
|
5 |
Over discharge protection |
Over-discharge detection voltage |
2.1-2.5±0.08V |
V |
|
|
|
Over-discharge detection delay |
0.1S |
S |
|
|
|
Over-discharge release voltage |
2.0-2.9±0.1V |
V |
|
6 |
Overcurrent protection |
Overcurrent detection voltage |
75±5 |
mV |
|
|
|
Overcurrent detection delay |
40mS |
mS |
|
|
|
Overcurrent detection current |
/ |
A |
|
|
|
Overcurrent protection release conditions |
Disconnect load |
|
|
7 |
Short circuit protection |
Short circuit protection conditions |
Short circuit of external load |
|
|
|
|
Short circuit detection delay |
250uS |
uS |
|
|
|
Short circuit protection release condition |
Disconnect load |
|
|
8 |
Temperature protection |
Temperature protection |
/ |
℃ |
Temperature switch can be added |
9 |
Internal resistance |
Main circuit conduction internal resistance |
≤20 |
mΩ |
|
10 |
Self-consumption |
Working current |
≤30 |
uA |
|
|
|
Sleep current (when current is over-discharged) |
≤20 |
uA |
|
11 |
Operating temperature |
Temperature range |
﹣20~+80℃ |
℃ |
|
12 |
Board size |
Board size |
60*25*1.2mm |
mm |
|
2. Four major protections
1) Overcharge protection
2) Over discharge protection
3) Short circuit protection
4) Overcurrent protection
3. Our advantage
1) Quality assurance, excellent materials, advanced equipment, strict quality system
2) Fast delivery, one-stop solution from customer information and requirements, reduces customer costs, and accelerates product launch.
3) It can be customized, and various PCBAs can be customized according to customer requirements.
4) Good service, one-to-one dedicated customer service, seamless connection throughout the process.
4. Custom instructions: Custom instructions:
As long as you tell us your functional requirements, our engineers will provide you with design, development and production solutions. We can design into any shape and size. We have completed tens of thousands of customizations, and we know how to design and produce electronic products that require professionalism and consistency. Our production is fully automatic production line, which can provide you with products with stable quality and consistent performance. Establishing long-term cooperative relations is conducive to maintaining stable product quality and follow-up technical services.
Our company mainly does customization and there are no ready-made ones. The pictures on the Internet are some samples that we have ordered and produced for our customers.