Product Parameter
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Overcharge voltage range: 4.25-4.35V ± 0.05V
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Overdischarge voltage range: 2.3-3.0V ± 0.05V
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Upper limit working current: 10A
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Working temperature:- 40--+50°C
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Maximum instantaneous current: 20A
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Storage conditions:- 40--+80°C
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Static current: less than 30UA
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Effective lifespan: greater than 50000 hours
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Internal resistance: less than 60M Ω
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Short circuit protection: can be protected, requires charging to restore
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Charging voltage 16.8V-17V
Product Functions
Suitable for the following products within the described power range: low-power inverters, massager battery packs, LED light backup power supplies, electronic products, solar street light battery packs, monitoring backup power supplies, and other products.
Precautions for use:
1: Strictly follow the wiring diagram for 0V (B -), 3.7V (B1), 7.4V (B2), 11.1V (B3), 14.8V (B+), and do not intentionally short circuit!
2: After connecting the cable, it needs to be charged first before there will be output.
3: Products with a discharge current of 3A or higher should have a battery discharge rate of 3C or higher. Ratio calculation formula: For a 1C rate battery, 2000 capacity equals 2AH * 1=2A upper limit working current. 3C rate battery, 2000 capacity equals 2AH * 3=6A upper limit working current.
The battery will heat up during use, which is due to the unsuitable battery rate. This situation cannot be used for a long time, and the battery will quickly damage,
4: When connecting 4 groups of batteries in series, please ensure that the voltage of each group of batteries is the same. If they are not the same, please fully charge each group of batteries separately before using them in series. During the discharge test, the group of batteries with the fastest voltage drop is a poor battery.
5: Do not mix good and poor batteries together for use! The closer the capacity/internal resistance of the 4 sets of batteries, the better! (The usage effect of 2 good batteries+2 poor batteries=the usage effect of 4 poor batteries)
6: This protective board cannot be used for lithium iron phosphate batteries, hernia lamps, hand drill battery packs, electric fishing machine battery packs, electric bicycle battery packs, children's car batteries, motors above 775 (4A), and 1W fisheye LED lights. Customers who purchase the above combinations are advised to pay attention!
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故障处理与解决事项 Troubleshooting and resolution issues |
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故障现象 Fault phenomenon |
故障检查与原因 Fault inspection and causes |
处理方法与保修 Handling methods and warranty |
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无法放电 Unable to discharge |
先连接适用的充电器充电，再分别测量4节电池的电压，如果其中一节电池电压低于 2.7左右，保护板会启动过放保护。 First, connect the appropriate charger to charge, then measure the voltage of each of the 4 batteries separately. If one of the batteries has a voltage below around 2.7, the protection board will activate the over discharge protection. |
配对好每节电池，好电池差电池不要混用 Pair each battery well, do not mix good and poor batteries |
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无法充电 Unable to charge |
测量4节电池的电压，如果其中一节电池电压超过 4.23V左右，保护板会启动过充保护 Measure the voltage of 4 batteries. If one of the batteries exceeds around 4.23V, the protection board will activate overcharge protection |
配对好每节电池，好电池差电池不要混用 Pair each battery well, do not mix good and poor batteries |
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充电/放电失效 Charging/discharging failure |
B-(0V)、B1(3.7V)、B2(7.4V)、B3(11.1V)、B+(14.8V)接错线 B - (0V), B1 (3.7V), B2 (7.4V), B3 (11.1V), B+(14.8V) are connected incorrectly |
重新接线或更换新板 Reconnect or replace with a new board |
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过充/过放失效 Overcharging/overdischarging failure |
B-(0V)、B1(3.7V)、B2(7.4V)、B3(11.1V)、B+(14.8V)接错线 B - (0V), B1 (3.7V), B2 (7.4V), B3 (11.1V), B+(14.8V) are connected incorrectly |
重新接线或更换新板 Reconnect or replace with a new board |
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放电保护 Discharge protection |
检查负载的启动电流是否超过保护板的过流保护电流 Check if the starting current of the load exceeds the overcurrent protection current of the protection board |
更换更大电流的保护板 Replace the protective board with a higher current |
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元件虚焊 Component virtual soldering |
元件有一个脚与PCB 焊盘之间无连接上 There is no connection between one foot of the component and the PCB pad |
自己补焊 Self repair welding |
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元件连焊 Component soldering |
元件的两个或两个以上引脚之间有连接短路 There is a short circuit between two or more pins of the component |
拆下元件重新焊接 Remove the components and re weld them |
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静电击穿 Electrostatic breakdown |
未通电状态下，测量mos 管G极D极、s极，任意两个引脚的正向电阻和反向电阻都是0Ω When not powered on, measure the forward and reverse resistance of any two pins of the MOSFET's G, D, and s terminals to be 0 Ω |
自己拆除更换 M0S管 Dismantle and replace the M0S pipe by yourself |
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注:公司本着诚信经营，保证每一个产品都使用专业的保护板测试仪测试过出货，因为保护板组合电池时有可能会因静电、电流损坏，在使用中有出现不良品属正常现象。我司电池组部门每天也在使用保护板组合电池，坏率在千分之五左右。 Note: The company operates with integrity and guarantees that every product is tested and shipped using a professional protective board tester. This is because the combination of protective boards and batteries may be damaged due to static electricity and current, and it is normal for defective products to appear during use. Our battery pack department also uses protective board combination batteries every day, with a failure rate of about 0.5%. |
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