![I found a BMS on my powerbank and it does not work. Do I even need it because it is a 3p configuration? : r/batteries I found a BMS on my powerbank and it does not work. Do I even need it because it is a 3p configuration? : r/batteries](https://preview.redd.it/i-found-a-bms-on-my-powerbank-and-it-does-not-work-do-i-v0-ds71wgxklbl91.jpg?width=640&crop=smart&auto=webp&s=a574ec2224838a46400775fcbb0f80c87177aee6)
I found a BMS on my powerbank and it does not work. Do I even need it because it is a 3p configuration? : r/batteries
![Amazon.com: MakerFocus 4pcs 186 50 Battery Charger Protection Module,Power Bank PCB Module Board,Dual USB 5V 1A 2.1A with BMS Protection for Phone DIY Mobile Power Bank : Cell Phones & Accessories Amazon.com: MakerFocus 4pcs 186 50 Battery Charger Protection Module,Power Bank PCB Module Board,Dual USB 5V 1A 2.1A with BMS Protection for Phone DIY Mobile Power Bank : Cell Phones & Accessories](https://m.media-amazon.com/images/I/71E8rvoJkDL.jpg)
Amazon.com: MakerFocus 4pcs 186 50 Battery Charger Protection Module,Power Bank PCB Module Board,Dual USB 5V 1A 2.1A with BMS Protection for Phone DIY Mobile Power Bank : Cell Phones & Accessories
![Notebook Power Bank BMS QC3.0 Battery Fast Charger PCB Shell DC5V12v15v 19V USB External DIY Pcba - AliExpress Notebook Power Bank BMS QC3.0 Battery Fast Charger PCB Shell DC5V12v15v 19V USB External DIY Pcba - AliExpress](https://ae01.alicdn.com/kf/HTB1J_YYdwmH3KVjSZKzq6z2OXXaX/Notebook-Power-Bank-BMS-QC3-0-Battery-Fast-Charger-PCB-Shell-DC5V12v15v-19V-USB-External-DIY.jpg)
Notebook Power Bank BMS QC3.0 Battery Fast Charger PCB Shell DC5V12v15v 19V USB External DIY Pcba - AliExpress
![Notebook Power Bank BMS QC3.0 Battery Fast Charger PCB Shell DC5V12v15v 19V USB External DIY Pcba - AliExpress Notebook Power Bank BMS QC3.0 Battery Fast Charger PCB Shell DC5V12v15v 19V USB External DIY Pcba - AliExpress](https://ae01.alicdn.com/kf/Hf57880d913074b3abfe1f1db2170b1caC.jpg_640x640Q90.jpg_.webp)
Notebook Power Bank BMS QC3.0 Battery Fast Charger PCB Shell DC5V12v15v 19V USB External DIY Pcba - AliExpress
![Amazon.com: 2 Pack 18650 Battery Charger Protection Module, MELIFE Power Bank PCB Module Board, Dual USB 5V 1A 2.1A with BMS Protection DIY Mobile Charging Accessories Digital LCD Display Indicator : Everything Else Amazon.com: 2 Pack 18650 Battery Charger Protection Module, MELIFE Power Bank PCB Module Board, Dual USB 5V 1A 2.1A with BMS Protection DIY Mobile Charging Accessories Digital LCD Display Indicator : Everything Else](https://m.media-amazon.com/images/I/610eTPXMb1L.jpg)
Amazon.com: 2 Pack 18650 Battery Charger Protection Module, MELIFE Power Bank PCB Module Board, Dual USB 5V 1A 2.1A with BMS Protection DIY Mobile Charging Accessories Digital LCD Display Indicator : Everything Else
![Shenzhen Power Bank PCB Board Developing Li-ion BMS 5s7a - China BMS 3.7V, Lithium BMS 5s7a | Made-in-China.com Shenzhen Power Bank PCB Board Developing Li-ion BMS 5s7a - China BMS 3.7V, Lithium BMS 5s7a | Made-in-China.com](https://image.made-in-china.com/202f0j00ukQYvCprOEcJ/Shenzhen-Power-Bank-PCB-Board-Developing-Li-ion-BMS-5s7a.jpg)
Shenzhen Power Bank PCB Board Developing Li-ion BMS 5s7a - China BMS 3.7V, Lithium BMS 5s7a | Made-in-China.com
![3S 12.6V 6A BMS Li-ion lítium akkumulátor védőtábla 18650 Power Bank Balancer akkumulátor kiegyenlítő tábla elektromos 3S 12.6V 6A BMS Li-ion lítium akkumulátor védőtábla 18650 Power Bank Balancer akkumulátor kiegyenlítő tábla elektromos](https://mikroelektronik.hu/2046594-large_default/3s-126v-6a-bms-li-ion-litium-akkumulator-vedotabla-18650-power-bank-balancer-akkumulator-kiegyenlito-tabla-elektromos.jpg)
3S 12.6V 6A BMS Li-ion lítium akkumulátor védőtábla 18650 Power Bank Balancer akkumulátor kiegyenlítő tábla elektromos
![PBC159 Power Bank Housing with BMS, Digital Display, LED Torch, Battery Capacity Indication for 6x 18650 Batteries – Electrobes PBC159 Power Bank Housing with BMS, Digital Display, LED Torch, Battery Capacity Indication for 6x 18650 Batteries – Electrobes](https://electrobes.com/wp-content/uploads/2021/04/torch1-1.jpg)
PBC159 Power Bank Housing with BMS, Digital Display, LED Torch, Battery Capacity Indication for 6x 18650 Batteries – Electrobes
![Buy Wholesale China Factory Price Pcm For Customized Wireless Power Bank10000mah Protection Pcm Bms For Power Bank & Battery Pcb Pcm Bms at USD 3.66 | Global Sources Buy Wholesale China Factory Price Pcm For Customized Wireless Power Bank10000mah Protection Pcm Bms For Power Bank & Battery Pcb Pcm Bms at USD 3.66 | Global Sources](https://p.globalsources.com/IMAGES/PDT/B1184085179/battery-PCB-PCM-BMS.jpg)
Buy Wholesale China Factory Price Pcm For Customized Wireless Power Bank10000mah Protection Pcm Bms For Power Bank & Battery Pcb Pcm Bms at USD 3.66 | Global Sources
![Buy Wholesale China Pcm For Customized Power Bank Protection Pcm Bms For Power Bank & Battery Pcb Pcm Bms at USD 2.52 | Global Sources Buy Wholesale China Pcm For Customized Power Bank Protection Pcm Bms For Power Bank & Battery Pcb Pcm Bms at USD 2.52 | Global Sources](https://p.globalsources.com/IMAGES/PDT/B1184085025/battery-PCB-PCM-BMS.jpg)
Buy Wholesale China Pcm For Customized Power Bank Protection Pcm Bms For Power Bank & Battery Pcb Pcm Bms at USD 2.52 | Global Sources
![Buy Wholesale China Factory Price Pcm For Customized Fast Charging Power Bank 20000mah 65w/ 45w /22.5w & Battery Pcb Pcm Bms at USD 3.88 | Global Sources Buy Wholesale China Factory Price Pcm For Customized Fast Charging Power Bank 20000mah 65w/ 45w /22.5w & Battery Pcb Pcm Bms at USD 3.88 | Global Sources](https://p.globalsources.com/IMAGES/PDT/B5141623704/battery-PCB-PCM-BMS.jpg)
Buy Wholesale China Factory Price Pcm For Customized Fast Charging Power Bank 20000mah 65w/ 45w /22.5w & Battery Pcb Pcm Bms at USD 3.88 | Global Sources
![3S 12,6 V 6A BMS lítium-lítium akkumulátor védőtábla 18650 Power Bank Balancer akkumulátor-kiegyenlítő 3S 12,6 V 6A BMS lítium-lítium akkumulátor védőtábla 18650 Power Bank Balancer akkumulátor-kiegyenlítő](https://azsiacenter.com/6481303-thickbox_default/3s-126-v-6a-bms-litium-litium-akkumulator-vedotabla-18650-power-bank-balancer-akkumulator-kiegyenlito-kartya.jpg)