13S 48V 20A Li-ion Battery Protection Board is used for Overcharge protection, over-discharge protection function, short circuit protection function, and  over current protection function

13S 48V 20A Li-ion Battery Protection Board is used for Overcharge protection, over-discharge protection function, short circuit protection function and over-current protection function.

1. Small size designed for a four-cell battery pack.
2. Simple and  convenient circuit for easy connections
3. Over-charge/Over-discharge Protection.
4. Pre-soldered Nickel Strip ready to mount on battery.

1. High accuracy when detecting the voltage of the battery and the charge current.
2. The terminal of the BMS circuit uses Nickel Strip
3. Protects from Battery over-voltage, over current, over charge etc.
4. Small Size board for easier fitment.

1. Over-Discharge Detection Voltage: 2.3-3.0V±0.05V.
2. Maximum Working Current: 3A.
3. Transient Current: 5A.
4. Operating Temperature : -40-50 C.
5. Internal Resistance: Less than 45m Ω.
6. B+ B-: The interface of battery core.
7. P+ P-: The connector of the battery board.
8. MB: The connection point between the batteries.

1. It is safe and reliable to use.
2. Small and compact.
3. Easy connections.

BMS (Battery Management System) – a battery management system that is designed to monitor the status of batteries, control the process of charging/discharging the battery, etc.

1. Small size designed for a four-cell battery pack.
2. Simple and  convenient circuit for easy connections
3. Over-charge/Over-discharge Protection.

1. 3S 11.1V 12.6V 40A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery).
2. Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery).
3. Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use).
4. Continuous charge current (upper limit): 20A.
5. Suitable for the drills with starting current below 80A, power 135W below.

Note:

1. The Successful start of the drill requires a three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!).
2. Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit.
3. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube.

1. Overcharge protection,
2. Over-discharge protection function, short circuit protection function,
3. Overcurrent protection function, band balance.

• Four series of lithium battery protection board
• Overcharge protection,
• Over-discharge protection function,
• Short circuit protection function,
• Overcurrent protection function.
• A high-accuracy voltage detection circuit.

1. This protection board is suitable for 4 series Li-ion cell.
2. Adopt a precision integrated circuit for fast and safe charging.
3. Support overcharge protection, over-discharge protection, and short circuit protection.
4. This product has gone through load and ageing test for quality assurance.

1. 4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery).
2. Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery).
3. Product weight: 9.3g (standard / enhanced version), 10.3g (balanced version).
4. Charging voltage: 16.8V – 18.1V.
5. Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use).
6. Continuous charge current (upper limit): 20A.
7. Equalization version: suitable for starting current below 80A, power 135W below the drill.

1. Small size designed for a four-cell battery pack.
2. Simple and  convenient circuit for easy connections
3. Over-charge/Over-discharge Protection.

Features:

• Low energy consumption
• Low maintenance
• Absolute reliability Applications:
  • Electrical alarms
  • Educational purposes
  • Security applications
  • Electronic Metronomes

1. Use top quality (A-level) protective integrated circuit IC, from the solution of Seiko of Japan.
2. Strong load ability, constant discharge current 10A/25/35A/45A/60A , use high voltage resistance, low inner
3. resistance power Mosfet. The heat sink will greatly help cooling.
4. IC itself has power balancing function. The circuit is simple and reliable.
5. Typical voltage detection for each cell. So each battery will be prevented over charged or over discharged. Over current and short circuit protection
6. Function is very reliable. Long time short circuit of the load won’t affect the PCB and the battery. Temperature protection during charging and discharging.
7. Extreme low power consumption. The consumption of the whole device is less than 50uA.
8. PCB use high anti-corrosion, high water resistance, high impedance ESD conformal Coating.

Note:

• The battery will heat when using it, it means the battery does not apply, please don’t keep using because the battery will be damaged soon.
• The protection board can not be used for lithium iron phosphate battery, hernia lamp, hand drill battery pack, electric fish machine battery pack, electric bicycle battery pack, children’s car battery, 775 (4A)motor, 1W fish eye LED light!

Precautions:

• Please strictly follow the wiring 0V (B -), 3.7V (B1), 7.4V (B2), 11.1V (B +), do not deliberately short circuit.
• Please charge after connecting the line, then it will have output.
• When connecting three groups of batteries, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. The discharge test, the voltage drops quickly.