Product Parameter
Overcharge voltage range: 4.25-4.35V ± 0.05V
Overdischarge voltage range: 2.3-3.0V ± 0.05V
Upper limit working current: 10A
Working temperature:- 40--+50°C
Maximum instantaneous current: 20A
Storage conditions:- 40--+80°C
Static current: less than 30UA
Effective lifespan: greater than 50000 hours
Internal resistance: less than 60M Ω
Short circuit protection: can be protected, requires charging to restore
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!
| 故障處理與解決事項(xiàng) Troubleshooting and resolution issues | ||
| 故障現(xiàn)象 Fault phenomenon | 故障檢查與原因 Fault inspection and causes | 處理方法與保修 Handling methods and warranty |
| 無法放電 Unable to discharge | 先連接適用的充電器充電，再分別測量4節(jié)電池的電壓，如果其中一節(jié)電池電壓低于 2.7左右，保護(hù)板會啟動過放保護(hù)。 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. | 配對好每節(jié)電池，好電池差電池不要混用 Pair each battery well, do not mix good and poor batteries |
| 無法充電 Unable to charge | 測量4節(jié)電池的電壓，如果其中一節(jié)電池電壓超過 4.23V左右，保護(hù)板會啟動過充保護(hù) Measure the voltage of 4 batteries. If one of the batteries exceeds around 4.23V, the protection board will activate overcharge protection | 配對好每節(jié)電池，好電池差電池不要混用 Pair each battery well, do not mix good and poor batteries |
| 充電/放電失效 Charging/discharging failure | B-(0V)、B1(3.7V)、B2(7.4V)、B3(11.1V)、B+(14.8V)接錯線 B - (0V), B1 (3.7V), B2 (7.4V), B3 (11.1V), B+(14.8V) are connected incorrectly | 重新接線或更換新板 Reconnect or replace with a new board |
| 過充/過放失效 Overcharging/overdischarging failure | B-(0V)、B1(3.7V)、B2(7.4V)、B3(11.1V)、B+(14.8V)接錯線 B - (0V), B1 (3.7V), B2 (7.4V), B3 (11.1V), B+(14.8V) are connected incorrectly | 重新接線或更換新板 Reconnect or replace with a new board |
| 放電保護(hù) Discharge protection | 檢查負(fù)載的啟動電流是否超過保護(hù)板的過流保護(hù)電流 Check if the starting current of the load exceeds the overcurrent protection current of the protection board | 更換更大電流的保護(hù)板 Replace the protective board with a higher current |
| 元件虛焊 Component virtual soldering | 元件有一個腳與PCB 焊盤之間無連接上 There is no connection between one foot of the component and the PCB pad | 自己補(bǔ)焊 Self repair welding |
| 元件連焊 Component soldering | 元件的兩個或兩個以上引腳之間有連接短路 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 |
| 靜電擊穿 Electrostatic breakdown | 未通電狀態(tài)下，測量mos 管G極D極、s極，任意兩個引腳的正向電阻和反向電阻都是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 | 自己拆除更換 M0S管 Dismantle and replace the M0S pipe by yourself |
| 注:公司本著誠信經(jīng)營，保證每一個產(chǎn)品都使用專業(yè)的保護(hù)板測試儀測試過出貨，因?yàn)楸Ｗo(hù)板組合電池時有可能會因靜電、電流損壞，在使用中有出現(xiàn)不良品屬正常現(xiàn)象。我司電池組部門每天也在使用保護(hù)板組合電池，壞率在千分之五左右。 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%. | ||
Product Size
Product Show
Payment&Transportation
Official Certificate&Certificate
Multiple product supply
Company office environment
Warehouse Real Shot
Standard packaging
We also provide ：
| Part No | Manufacturer | Date Code | Quantity | Description |
| LM22676ADJ | NS | 19+ | 250 | SOP8 |
| TPS562201DDCR | TI | 22+ | 795500 | SOT23-6 |
| NJG1806K75 | JRC | 22+ | 500000 | DFN6 |
| TLV74318PDQNR | TI | 22+ | 402000 | X2SON-4 |
| NJG1801K75 | JRC | 22+ | 300000 | SMD |
| NJG1804K64 | JRC | 22+ | 300000 | DFN8 |
| LM27761DSGR | TI | 22+ | 151000 | WSON8 |
| TLV62565DBVR | TI | 22+ | 138000 | SOT23-5 |
| TPS613222ADBVR | TI | 22+ | 108000 | SOT23-5 |
| LNK625DG-TL | POWER | 22+ | 100000 | SOP-8 |
| OPA4322AIPWR | TI | 22+ | 100000 | TSSOP14 |
| TLV75528PDRVR | TI | 22+ | 99000 | WSON-6 |
| TPS7A2025PDQNR | TI | 22+ | 78500 | X2SON-4 |
| TLV62568DBVR | TI | 22+ | 72000 | SOT23-5 |
| STM32L051K8U6TR | ST | 22+ | 60000 | QFN32 |
| SKY66421-11 | SKYWORKS | 22+ | 56500 | QFN16 |
| TPS7A1111PDRVR | TI | 22+ | 54000 | WSON6 |
| TLV62569PDDCR | TI | 22+ | 52000 | SOT23-6 |
| TLV62569DBVR | TI | 22+ | 48000 | SOT23-5 |
| TPS23753APWR | TI | 22+ | 40000 | TSSOP14 |
| NB691GG-Z | MPS | 22+ | 30000 | QFN |
| SN74AHC1G02DBVR | TI | 22+ | 27939 | SOT-23 |
| TPS63000DRCR | TI | 22+ | 23238 | VSON10 |
| TLV75533PDRVR | TI | 22+ | 21500 | WSON6 |
| NB687BGQ-Z | MPS |
