3S-40A 18650 18uA BMS Printed Circuit Board Assembly
3S-40A Li-ion Lithium Battery Charger Protection Board 18650 BMS Enhance/Balance Version pcba
(CY-287 Enhance Version ; CY-288 Balance Version)
Scope of application: Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, without limitation of shape and size)
Product Size: 41*55*3.4mm(Enhanced Version) 41'60*3.4mm (Balanced Version)
Product quality: 8.8g (enhanced version) 9.8g (balanced version)
Charging Voltage: 12.6V~13.6V
Continuous discharge current (upper limit): 40A ( if the heat dissipation environment is not good, please reduce the use of load current)
Continuous charging current(upper limit): 20A
Enhanced version: suitable for electric drills with starting current below 80A and power below 170W
Balanced version: suitable for electric drills with starting current below 80A and power below 170W. with balanced charging function
| Project | Minimum | Typical | Maximum | Unit | Remarks |
| Self consuming current | 12 | 18 | 24 | uA | |
| Overcharge protection voltage | 4.2 | 4.25 | 4.3 | V | |
| Equilibrium start-up voltage | 4.17 | 4.2 | 4.23 | V | Balanced version |
| Balanced current | 95 | 100 | 105 | mA | |
| Equilibrium heating power | 1..17 | 1.29 | 1.43 | W | |
| Overcharge recovery voltage | 4.1 | 4.15 | 4.2 | V | |
| Over-discharge protection voltage | 2.4 | 2.5 | 2.6 | V | |
| Back-up Voltage after Over-discharge Protection | 2.8 | 3 | 3.2 | V | 1C discharge |
| Back-up Voltage after Over-discharge Protection | 3.2 | 3.5 | 3.8 | V | 2C discharge |
| Over-discharge recovery voltage | 2.9 | 3.2 | 3.3 | V | |
| Conductive internal resistance | 2.5 | 3 | 3.5 | mΩ | |
| Overcurrent protection current | 70 | 80 | 90 | A | |
| Overcurrent delay time | 100 | 150 | 200 | mS | |
| Continuous working current | 0 | 40 | 40 | A | Resistive load |
| Continuous output power | 0 | 504 | 504 | W | Resistive load |
| Ambient temperature | -40 | 25 | 85 | ℃ |
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- Supplying to Changdian, Xinghai, Tuofeng, Leshan, Roma and Anshi
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