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5Pcs 3S 40A Li-ion Lithium Battery Charger Protection Board PCB BMS For Drill Motor 11.1V 12.6V Lipo Cell Module With Balance
| Project | Min. | Typ. | Max. | Units | Notes |
| Consuming current | 12 | 18 | 24 | uA | |
| Overcharge protection voltage | 4.2 | 4.25 | 4.3 | V | |
| Balanced starting voltage | 4.17 | 4.2 | 4.23 | V | Balanced version |
| Equilibrium current | 95 | 100 | 105 | mA | Balanced version |
| Balanced heating power | 1.17 | 1.29 | 1.43 | W | Balanced version |
| Overcharge recovery voltage | 4.1 | 4.15 | 4.2 | V | |
| Over-discharge protection voltage | 2.4 | 2.5 | 2.6 | V | |
| Overvoltage protection after over-discharge protection | 2.8 | 3 | 3.2 | V | 1C discharge |
| Overvoltage protection after over-discharge protection | 3.2 | 3.5 | 3.8 | V | 2C discharge |
| Over-discharge recovery voltage | 2.9 | 3.2 | 3.3 | V | |
| Conduction internal resistance | 2.5 | 3 | 3.5 | mQ | |
| Overcurrent protection current | 70 | 80 | 90 | A | |
| Overcurrent delay time | 100 | 150 | 200 | ms | |
| Continuous operating current | 0 | 40 | 40 | A | Resistive load |
| Continuous output power | 0 | 504 | 504 | W | Resistive load |
| Ambient temperature | -40 | 25 | 85 | °C |
| Troubleshooting: | ||
| Fault phenomenon | Fault check and cause | Approach |
| Unable to charge | Measure the voltage of the three groups of batteries. When one of the battery voltages exceeds 4.25V, the protection board will activate overcharge protection. | Pair the battery pack well, do not mix the good battery and the bad battery (normal function) |
| Unable to discharge | Measure the voltage of the three battery packs. When one of the battery voltages is lower than 2.7V, the protection board will activate the over- discharge protection. |
Pair the battery pack well, do not mix the good battery and the bad battery (normal function) |
| Charging/discharging failure | OV, 4.2V, S.4V, 12.6V miswired | Rewiring or replacing a new board (human failure) |
| Overcharge/overdischarge failure | OV, 4.2V, 8.4V, 12.6V miswired | Rewiring or replacing a new board (human failure) |
| Discharge protection | Check that the battery pack has sufficient discharge capability and check that the load's starting current exceeds the overcurrent protection current of the protection board. |
Replace the battery pack with a higher discharge capacity, or a protective plate with a larger current (super working range) |
| Component soldering | There is no connection between one of the components and the PCB pad. |
Repair welding |
| Component welding | There is a short circuit between two or more pins of the component. |
Remove the component and re-weld |
| Electrostatic breakdown A | In the unpowered state, measure the G, D, and S poles of the MOSFET. If the forward and reverse resistances of any two pins are 0Q, it indicates that it has broken down. |
Remove the replacement MOS tube |
| Electrostatic breakdown B | Remove the MOS tube and measure the resistance of the G and D, G and S poles of the MOS tube. If there is a resistance indicating that it has broken down, the resistance should be infinite. |
Remove the replacement MOS tube |
(1) FREE Shipping 10 - 15 business days, (2) Standard Shipping 7 - 12 business days.
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We ship in-stock orders as soon as possible. This is often within two business days, but there are situations where it may take longer. All estimates are based on business days.
Note:
(1) The shipping time mentioned above refers to the estimated time of business days that the shipment will take after an order has been shipped.
(2) Business days do not include Saturday/Sunday and any public holidays.
(3) These estimates are based on normal circumstances and are not a guarantee of delivery times.
(4) We are not responsible for the failures or delays in delivery resulting from any force majeure event, such as natural disaster, bad weather, war, customs issues, and any other event beyond our direct control.
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can't offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
for more information please visit our Refunds & Returns Policy page.
