1S 3.7V 3A
Features:
1) high-accuracy voltage detection circuit;
2) terminal of the charger using high voltage device;
3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, load short circuit);
4) MOS transistor can control the battery charge and discharge;
Parameter:
Over charge voltage: 4.25±0.05V
Over charge release voltage:4.23±0.05V
Over discharge voltage:2.54±0.1V
Maximal continuouscharging current: 2A
Maximal continuous Discharging current: 2A
Over current protection: 3A
Size: L40*W4*T3mm
2S 7.4V 3A
Description:
Short circuit protection
Overcharge protection
Over-discharge protection
Overcurrent protection
Overcharge Detection Voltage: 4.25-4.35V±0.05V
Over Discharge Detection Voltage: 2.3-3.0V±0.05V
Maximum Working Current: 3A
Transient Current: 5A
Operating Temperature: -40-50 degree
Internal Resistance: Less than 45m Ω
B+ B-: The interface of battery core
P+ P-: The connector of battery board
MB: The connection point between the batteries
B+: Battery V+ Positive
B-: Battery V- Negative
P+: Output / Charging V+
P-: Output / Charging V-
Size: Approx. 36x6x1mm/ 1.42" x 0.24" x 0.04"
2S 8.4V 5A
Note:
The protection board can not be used for lithium iron phosphate battery, hernia lamp, hand drill battery pack, electric fish battery pack, electric bicycle battery pack, children's car battery, 775 (4A) motor, 1W fish eye LED light, Please pay attention to the combination of the purchase of customers!
The lithium battery protection board properties:
Model: HX-2S-A2 Overcharge voltage range: 4.25-4.35v ± 0.05v
Size: 17.5 * 17.5 * 3.2mm over discharge voltage range: 2.5-3.0v ± 0.05v
Upper limit operating current: 5A Operating temperature: -40 --- +50 °
Upper limit instantaneous current: 7A Storage conditions: -40-- +80 °
Quiescent current: less than 10uA Effective life: more than 50,000 hours
Internal resistance: less than 300mΩ Short circuit protection: can be protected, need to charge recovery
Charging voltage: 8.4V-9V
Welding point Description:
· B + connected to the battery positive;
· B-connected battery negative;
· MB connects the battery 1 to the connection point before the battery 2;
· P + connected to the charge / discharge side of the positive (charge side / discharge side shared);
• P-connect / discharge terminal negative (shared with charge / discharge).
3S 10A 12V
The protection board can not be used for lithium iron phosphate battery, hernia lamp, hand drill battery pack, electric fish battery pack, electric bicycle battery pack, children's car battery, 775 (4A) motor, 1W fish eye LED light, Please pay attention to the combination of the purchase of customers! The
Described in the power range for the following products:
Massager battery pack, LED light standby power supply, 12V electronic products, solar street lamp battery pack, monitor backup power supply, and other products.
Note: 3A current discharge products above, the battery discharge rate to 3C or more.
Magnification calculation formula: 1C magnification of the battery, 2000 capacity is equal to 2AH * 1 = 2A upper limit current.
3C magnification battery, 2000 capacity equal to 2AH * 3 = 6A upper working current.
In use, the battery will heat is the battery does not apply, this situation can not be long-term use, the battery will soon be damaged.
Description Explanation:
3 string (for 3 18650 batteries or polymer lithium battery series combination)
10.8V (rated voltage for polymer battery)
11.1V (18650 or 3.7V lithium battery rated voltage)
12.6V (lithium battery is fully charged after the voltage)
Discharge 10A (refer to the upper limit discharge current limit)
Note 1: strictly according to Figure wiring 0V (B -), 3.7V (B1), 7.4V (B2), 11.1V (B +), do not deliberately short circuit!
Note 2: after the need to charge the first line, will have output.
Note 3: 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 in series. Discharge test, the voltage drop is fast that group of batteries is poor battery.
(2 good battery + a poor battery use effect = 3 poor battery use effect)....
The lithium battery protection board properties:
Model: HX-3S-01 overcharge voltage range: 4.25-4.35v ± 0.05v
Size: 50 * 16 * 1.0mm Over discharge voltage range: 2.3-3.0v ± 0.05v
Upper working current: 6-8A Operating temperature: -40 --- +50 °
Upper limit instantaneous current: 9-10A Storage conditions: -40-- +80 °
Quiescent current: less than 30uA Effective life: more than 30,000 hours
Internal resistance: less than 100mΩ Short circuit protection: protection, delay self-recovery. Charging voltage: 12.6V-13V
The protection board size and device description;
The protection board size is 50 * 16 * 1.2mm; components for the Seiko S-8254AA protection chip and AO4407 * 4;
3S 12.6V 20A
Scope of application: Lithium batteries with nominal voltages of 3.6V and 3.7V (including 18650, 26650, polymer lithium batteries)
Product size: 59*20*3.4mm
Product weight: 4.3g
Charging voltage: 12.6V-13.0V
Continuous discharge current (upper limit): 20A (If the heat dissipation environment is not good, please reduce the load current to use)
Continuous charging current (upper limit): 10A
Standard version: suitable for electric drills with starting current below 40A and power below 65W.
Note 1: Successful start of the electric drill requires 3 power batteries of 15C-20C, or 6 power batteries of 10C-15C (ordinary 18650 cannot start the electric drill!! !); if it happens to be the battery is too small or the power of the electric drill is too large If you cannot start, please contact the owner to tell you the solution.
Note 2: Wiring 0V, 4.2V, 8.4V, 12.6V strictly according to the diagram, do not intentionally short-circuit.
Note 3: For loads with brushed motors, a capacitor (10uF-1000uF) must be connected in parallel to the positive and negative terminals of the motor to prevent the reverse peak voltage generated by the motor from interfering with the protection board or puncturing the MOS tube.
Note 4: When connecting 3 sets of batteries in series, please ensure that the voltage of each set of batteries is the same. If they are not the same, please charge each set of batteries separately and use them in series. . .
During the discharge test, the battery with the faster voltage drop is a bad battery.
Explain for some customers with poor electronic foundation: Never mix good batteries and bad batteries together! The closer the capacity/internal resistance of the 3 sets of batteries, the better! (2 good batteries + 1 poor battery use effect = 3 poor battery usage effects).
Explain for some customers with poor electronic foundation: Never mix good batteries and bad batteries together! The closer the capacity/internal resistance of the 3 sets of batteries, the better! (2 good batteries + 1 poor battery use effect = 3 poor battery usage effects).
4S 30A 16.8V
4 string lithium battery protection board, suitable for nominal voltage 14.4V lithium battery pack, 14.8V lithium battery pack, 16.8V lithium battery pack. With automatic activation function, protection conditions automatically restored after the resumption of protection, no need to activate the charger, the use of more convenient.
Module parameters:
Module name: 4 string lithium battery protection board
Modular nature: Polymer lithium battery protection board
Overcharge detection voltage: 4.25 ± 0.025V
Overcharge release voltage: 4.15 ± 0.05V
Over discharge detection voltage: 2.50 ± 0.08V
Over discharge release voltage: 3.00 ± 0.1V
Overcurrent current: 20-30A
Operating current: 15A (natural cooling 10A, plus heat sink 15A, the maximum instantaneous current 30A)
Release condition: protection condition is de-automatic recovery without activation (optional charger active)
Main functions: overcharge protection, over discharge protection, short circuit protection, overcurrent protection.
Operating temperature: -40 ~ +85 degrees (when the ambient temperature is too high, please strengthen the heat)
Wiring method: welding output
Module size: 50mm * 22mm * 4mm
Applications:
The protection board can be used as the nominal voltage of 14.4V, 14.8V, 16.8V four-string polymer lithium battery pack, four string 18650 lithium battery pack as overcharge, over discharge, short circuit protection. No need to activate the function In the power application for the instantaneous current is very high, the inverter application can avoid the false trigger protection, the use of more convenient.
Precautions
B-, C- line should be connected with thick wires, and ensure that the pads are soldered correctly with the positive and negative terminals of the corresponding equipment.
Before installing the protection board, the battery must be matched well (the voltage difference between each battery is not higher than 0.05V, the internal resistance is not more than 5mΩ, the difference of the capacitance is less than 30mAh), the protection board is to protect each string of batteries, as long as there is a string The battery voltage is too high or too low to protect it. The better the battery consistency, the longer the battery life, and the best performance of the protection board.
A single battery needs to be connected in parallel to the required number of battery packs, and then the battery packs are used in series.
When connecting 2 sets of batteries in series, please ensure that the voltage of each set of batteries is the same. If they are different, please fill each set of batteries separately and use them in series. In the discharge test, the battery with the fastest voltage drop is the poor battery.
Do not mix good battery and poor battery. The capacity of the battery pack should be as close as possible.
This protective plate cannot be used for lithium iron phosphate batteries.
Lithium battery protection board is strictly prohibited to be used in series.
20A 3S 4S 5SLithium Battery Protection Board
FOR Li-POLYMER LiMnO Protect Parameter (3.6V / 3.7V)
Single Cell overcharge protect voltage: 4.23-4.28V
Single Cell overcharge rotect recover voltage: 4.08-4.18
overcharge protect delay: 0.5-1.5S
Single Cell over-discharge protect voltage: 2.72-2.88V
Single Cell over-discharge rotect recover voltage: 2.9-3.1V
overcharge protect current: 60A
over-discharge protect current: 60A
over-discharge protectdelay: 0.5-1.5S
temperature protect: YES
disconnect protect: YES
shortage protect: YES
shortage delay: 100-600μS
shortage protect recover: YES
Charging current: 25A
discharging current: 25A
charging voltage: 12.6V for 3S, 16.8V for 4S, 21V for 5S BMS board
Different series of protection board
Modified string number operation guide:
This protection board is universal for 3, 4, and 5 strings, but the conversion between different string numbers requires the customer to change the components on the board by himself before wiring according to the wiring diagram of the corresponding string number.
For example, if you want to use a 3-string board purchased by a customer on a 4-string battery, you can modify it yourself (that is, change 3 strings to 4 strings). Step 1: First remove the 0Q resistance of "Position 2" and "Position 4".
Step 2: Change "Position 1" with 0Q resistance or short-circuit with solder (the component position after modification should be the same as the "4-series standard drawing"), and then refer to the 4-series wiring diagram for wiring.(Reminder: If the customer bought a 3-string board and used it on a 3-string battery, there is no need for any changes, please ignore this guide)
