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4S 40A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board with Balance For Drill Motor 14.8V 16.8V Lipo Cell Module
55
Shipping to: United States |
Express delivery: 7-12 business days |
Standard delivery: 15-25 business days
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Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.Polisiya sa Pagpadala
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Feature:
4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)
Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)
Product Size: 45 * 55 * 3.4mm (Standard Edition / Enhanced), 46 * 60 * 3.4mm (balanced version)
Product weight: 9.3g (standard / enhanced version), 10.3g (balanced version)
Charging voltage: 16.8V - 18.1V
Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use)
Continuous charge current (upper limit): 20A
Equalization version: suitable for starting current below 80A, power 135W below the drill.
| Project | Min. | Typ. | Max. | Units |
| Consuming current | 12 | 18 | 24 | uA |
| Overcharged protection voltage | 4.2 | 4.25 | 4.3 | V |
| Balanced starting voltage | 4.17 | 4.2 | 4.23 | V |
| Equilibrium current | 95 | 100 | 105 | mA |
| Balanced heating power | 1.56 | 1.72 | 1.91 | W |
| 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 |
| Overvoltage protection after over-discharge protection | 3.2 | 3.5 | 3.8 | V |
| Over-discharge recovery voltage | 2.9 | 3.2 | 3.3 | V |
| Conduction internal resistance | 2.5 | 3 | 3.5 | mu03a9 |
| Overcurrent protection current C | 70 | 80 | 90 | A |
| Overcurrent delay time | 100 | 150 | 200 | ms |
| Continuous operating current | 0 | 40 | 40 | A |
| Continuous output power | 0 | 672 | 672 | W |
| Ambient temperature | -40 | 25 | 85 | °C |
| Fault phenomenon | Fault check and cause | The solution |
| Unable to charge | Measuring the voltage of 4 groups of batteries. | Pair the battery pack well, do not mix |
| when one of the battery voltages exceeds 4.25V, | the good battery and the bad battery. | |
| the protection board will activate overcharge protection. | ||
| Unable to discharge | Measuring the voltage of 4 groups of batteries. | Pair the battery pack well, do not mix |
| when one of the battery voltages is lower than 2.7V, | the good battery and the bad battery. | |
| the protection board will activate the over-discharge | ||
| protection. | ||
| Charging/discharging | OV, 4.2V, S.4V, 12.6V, 16.8V miswired | Rewire or replace the new board |
| failure | (human failure, no warranty) | |
| Overcharge/overdischarge | OV, 4.2V, 8.4V, 12.6V, 16.8V miswired | Rewire or replace the new board |
| failure | (human failure, no warranty) | |
| Discharge protection | Check that the battery pack has sufficient discharge | Replace the battery pack with a higher |
| capability and check that the load"s starting current | discharge capacity, or a protective | |
| exceeds the overcurrent protection current of the | plate with a larger current | |
| protection board. | (super working range) | |
| Component soldering | There is no connection between one of the components | Repair welding |
| and the PCB pad. | ||
| Component welding | There is a short circuit between two or more pins of the | Remove the component and re-weld |
| component. | ||
| Electrostatic breakdown A | In the unpowered state, measure the G, D, and S | Remove the replacement MOS tube |
| poles of the MOSFET. If the forward and reverse | ||
| resistances of any two pins are 0Q, | ||
| it indicates that it has broken down. | ||
| Electrostatic breakdown B | Remove the MOS tube and measure the resistance | Remove the replacement MOS tube |
| 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. |
Package includes:
1 x Battery Protection Board
