48V 13S 30A BMS battery with mini size; it is suitable for Dengfu E22 /E23 /E10 batteries and some of the Dorado batteries.

The BMS has ON/OFF switch if your battery has no switch, just short circuit the two switch wires.

7S BMS(battery management system) for 24V li-ion battery. 

The BMS is small in dimension(65*35*9mm) and it can fit into many battery cases.

It has a high temperature protection sensor which will protect your battery from too hot.

10S, 11S, 12S, 13S, 14S, 15S, 16S, 17S, 18S, 19S, 20S, 21S, 22S Smart battery BMS with computer softwave or mobile(via bluetooth). This Smart BMS is handle max 120A continuous discharging current; if your going to build a smart battery with a case, this small BMS(63x52x12mm, 102x66x10MM, 102x66x17mm or 102 x76x18mm) would be suitable for you. You can program the battery from the the computer or view the battery status from your mobile(IOS system can only view battery status while Androi system can slightly modify some parameters).  If you install the BMS for a 10S battery, and a year later, you want to install it for a 14S, this BMS can fit your requirement. For different strings, only the connection diagram is different, please contact us for the connection diagram if you want to install it for a different battery. 

The BMS has ON/OFF switch and you can activate the switch via the mobile app; The Bluetooth is built in with the BMS which you can install the app on the mobile and check the battery status or change the parameters(IOS can only change a few parameters, please note).

The smart BMS adapts UART COM; you cannot connect to the computer or mobile in the same time since it has only one COM; you can connect to the computer set the parameter, save the data, then connect to the bluetooth, view datas fromt the mobile app.  The BMS can identify the battery string as far as the connection is correct.

If you also need a matching charger for your battery, you can choose one battery from here: battery charger; if you don't know what charging current it is, you can leave us a message and we will check for you.

If you need larger discharging current for your battery, we also provide other smart BMS with larger current, you can check from here: 80A-100A 11S-15S smart battery BMS

You can switch ON or OFF the battery via the mobile app. For more functions or details, you can download the software and app from here: smart BMS connection diagram and software

14S 52V 15A 20A 30A 40A 50A 60A 80A 100A waterproof lithium battery bms, charging and discharging with the same COM

This BMS is only suitable for Li-ion packs(single cell 3.7V). it is not suitable for LiFePO3 packs(single cell 3.2V), please note.

1. Overcharge protection(Single cell 4.25V; 14S pack 59.5V);

2. Overdischarge protection(single cell 2.7V; 13S pack 37.8V)

3. Over current protection

4. Short circuit protection

5. Temperature protection

6. Balanced voltage(single cell 4.18V, 14S pack 58.5V)

7. Discharging current/Peak discharging current: 15A/50A, 20A/60A, 30A/80A, 40A/100A, 60A/180A, 80A/200A, 100A/300A

8. Dimension: 63x50x9mm(for 15A BMS); 63x50x12mm(for 20A BMS); 80x61x12mm (for 30A/40A BMS), 80x61x16mm(for 50A/60A BMS);150x66x19mm(for 80A BMS); 166x65x24mm(for 100A BMS);

Recommend charging voltage: 58.8V

Charging current for the BMS/pack:  Less than the continuous discharging(Recommend less than 1C charging current which would be better for the battery lifespam).

13S 48V waterproof lithium battery bms, charging and discharging with the same COM

1. Overcharge protection(Single cell 4.25V; 13S pack 55.25V);

2. Overdischarge protection(single cell 2.7V; 13S pack 35.1V)

3. Over current protection

4. Short circuit protection

5. Temperature protection

6. Balanced voltage(single cell 4.18V, 13S pack 54.34V)

7. Discharging current/Peak discharging current: 15A/50A, 20A/60A, 30A/80A, 40A/100A, 60A/180A, 80A/200A, 100A/300A

8. Dimension: 59x34x9mm(for 15A BMS); 62x50x9mm(for 20A BMS); 80x61x12mm (for 30A/40A BMS), 80x61x16mm(for 50A/60A BMS);150x66x19mm(for 80A BMS); 166x65x24mm(for 100A BMS);

Recommend charging voltage: 54.6V

Charging current for the BMS/pack:  Less than the continuous discharging(Recommend less than 1C charging current which would be better for the battery lifespam).

52V 30A 14S BMS/PCM for e-bike downtube new polly DP-6 casing batteries. This BMS is designed for new Polly DP-6 casing battery with only 8mm in thickness which enables building larger capacity with this case;

The BMS has balance, ON/OFF switch, and high temperature protection.

Continuous discharging current to be 30A, fit for Bafang BBSHD kit.

If your battery case does not have ON/OFF switch, please short circuit the ON/OFF switch wires when assemble the BMS to your pack.

48V 20A/25A 13S BMS/PCM for e-bike downtube batteries. This BMS is with small dimension(L80*W60*T10mm) with balance, ON/OFF switch, battery capacity LED and high temperature protection.

This battery management system(BMS) is suitable for most frame batteries, such as Hailong-02/03 casing battery, DA-5C Casing battery, DS-6 casing battery or new Polly DP-6 casing battery.

If your battery case has 5V USB output, you may also need to order a 5V PCB for your battery.

If your battery case does not have ON/OFF switch, please short circuit the ON/OFF switch wires when assemble the BMS to your pack.

36V 20A/25A 10S BMS/PCM for e-bike downtube batteries. This BMS is with small dimension(L80*W60*T10mm) with balance, ON/OFF switch, battery capacity LED and high temperature protection.

This battery management system(BMS) is suitable for most frame batteries, such as Hailong-02/03 casing battery, DA-5C Casing battery, DS-6 casing battery or new Polly DP-6 casing battery.

If your battery case has 5V USB output, you may also need to order a 5V PCB for your battery.

If your battery case does not have ON/OFF switch, please short circuit the ON/OFF switch wires when assemble the BMS to your pack.

20S, 24S, 60V/72V /84V lihtium-ion/LiFePO4 BMS/PCM with balance for e-motorcycle 30A,40A or 50A.

The BMS has short circuit, overvoltage/undervoltage protection, over current protection etc.

COMMON port means charging and discharging use the same port.

Separate port means charging and discharging use separate port.

There balance LED on the BMS which you can check if the cells are in balance or not, or you can find the "defective" cells which are not in balance status.

Smart lihtium battery management system/PCM for 12S, 13S, 14S or 15S Lithium LiFePO4, NiCoMn, LiMn2O4 etc diy battery packs. You can program the intelligent BMS/lithium battery on your computer and view all the parameters via your mobile(The Android APP can slightly modify parameter for the BMS while the IOS APP can only read datas and cannot modify data from mobile). Our ltihium battery BMS has been upgraded with alloy plates for better heat radiation, but the connection of the PCM has no changed.  We also provide smart BMS with larger serial from 7S~10S, 11S~15S(current less than 60A), 16S~ 20S PCM and 20S~ 30S BMS with software and mobile app control. 

The PCM is with blanace, standard UART COM, Short circuit protection, temperature(NTC) protection, overcharge protection, overdischarge protection, over current protection and under voltage protection etc.  Some Smart BMSs are available for RS232 and RS485 COM port, please email us if you need.

This smart BMS use the same COM for charging and discharging which means the max charging current could be larger. If you  need a battery charger for your diy packs, we also provide customized lihtium battery chargers.

If you need the  PCM communication software, app or connection diagram, please download from here: intelligent battery management specification

48V 13S 40A BMS for Dorado batteries with small size, 60*32*10mm(L*W*T).

52V 14S 40A BMS for new polly /Dorado battery(Size: 63x 50 x 10mm);

There are several Dorado cases, this 48V mini BMS is only suitable for most of the Dorado batteries (ID-pro, ID-plus, ID-max and ID-21700 case etc). If you don't know which case your battery uses, you can check the Dorado case picture from here: 48V Dorado battery; if you are looking forr 14s BMS for the Dorado battery, please double check first. 

The BMS is with higher current which is suitable for BBSHD, BAFANG M620 Ultra motor etc.

This BMS has no ON/OFF switch, if you need a switch for your battery,  please order another BMS on our website.

Battery BMS 10S, 11S, 12S, 13S, 14S, 15S or 16S with 15A~30A continuous discharge current. This model BMS is available for LiFePO4 or Li-ion.

ON/OFF switch is available for this BMS. If your battery case has a switch, then you need a switch for the BMS too.

48V 35A BMS for Dorado batteries with small size, 72*52*15mm(L*W*T). There are several Dorado cases, this BMS is only suitable for ID-plus, ID-max and ID-21700 case. If you don't know which case your battery uses, you can check the Dorado case picture from here: 48V Dorado battery

The BMS is with higher current which is suitable for BBSHD, BAFANG M620 Ultra motor etc 1000W, 1500W or 1800W motors.

This BMS has no ON/OFF switch, if your need switch for your battery,  please order other BMS on our website.

Intelligent lihtium battery management system/PCM for 7S, 8S, 9S or 10S Lithium LiFePO4, NiCoMn, LiMn2O4 etc diy packs. You can program the smart BMS/lithium battery on your computer and view all the parameters via your mobile(The Android APP can slightly modify parameter for the BMS while the IOS APP can only read datas and cannot modify data from mobile). We also provide smart BMS with larger serial from 10S~15S, 16S~ 20S PCM and 20S~ 30S BMS with software and mobile app control. 

This smart BMS use the same COM for charging and discharging which means the charging current can be equal to the discharging current(but we don't sugget to charge with large current because it is not good for the battery). If you  need a battery charger for your diy packs, we also provide customized lihtium battery chargers.

About thickness of the BMS, if the BMS current is large, then it will be 17mm thickness; if the serial number and current is small, then it is 10mm thick.

BMS dimension: 60 x 140 x 10mm with current <50A; 102 x 150 x 17mm with current ≥60A.

The new BMS is compatible with 485 and UART communication port.

If you  need to pre-check the software or app for the BMS, please download from here: smart bms specification

This is a smart lithium battery  management system(BMS) which can be used for either Li-ion batteries or LiFePO4 batteries. It can use for 11S, 12S, 13S, 14S or 15S batteries. You can program it on your computer and view all the parameters via your mobile(The Android APP can slightly modify parameter for the BMS while the IOS APP can only read datas and cannot modify data from mobile) when outside. The battery pcm has been upgraded with alloy plates for better heat radiation, but the connection of the PCM has no changed. If you need the bms communication software, app or connection diagram, please download from here: details and docs of smart BMS. 

We also provide ohter intelligent lithium battery BMS with larger current from 7S to 10S, 16S~ 20S PCM and 20S~ 30S BMS with software and mobile app control. 

The battery BMS is with NTC temperature protection, short circuit protection, over/under voltage protection, over current protection etc.

This Smart PCM use the same COM for charging and discharge which means the charging current can be equal to the discharging current(but we don't suggest charging current to be too large because it is no good for battery). We can also provide customzied charger which compatible with the smart BMS.

If you are going to install the battery with casing which has an ON/OFF switch, then you may need the BMS to have a ON/OFF function leads for connecting to the case's switch. In this case, you can choose the ON/OFF switch for the BMS.

The Smart BMS has upgraded. It's compatible with UART COM and 485 COM.

Smart BMS for 20S, 21S, 22S, 23S, 24S, 25S, 26S, 27S, 28S, 29S, 30S LiFePO4 or Lithium-ion batteries. You can set the battery parameter with your computer or cell phone. The Android APP can slightly modify parameter for the BMS while the IOS APP can only read datas and cannot modify data from mobile. The max current can be 100A for this BMS.  By the way, please set the recycle capacity to be 80% of the rated capacity/actual capacity. If you need the software, app and connection diagram,  please download from here: Smart BMS software/app/diagram.

If you need a charger for the smart BMS, we can also provide: customized charger.

Smart BMS for 16S~20S LiFePO4 or Lithium-ion batteries. You can check or modify your battery parameter by your mobile or computer The Android APP can slightly modify parameter for the BMS while the IOS APP can only read datas and cannot modify data from mobile. The max current can be 50A for this BMS. If you need the programming software/app, smart PCM connection diagram, please download from here: intelligent PCM software/app. 

If you also need a battery charger for the smart BMS, we can also provide customized battery charger to you.

BMS for 36V Li-ion ebike battery with countinuous discharge current being 20A. This BMS is small in dimension(L*W*H: 65*35*9mm) which you can install it into many different battery cases. If you want to make a 5V output for charging your mobile or ipad, you can add a 5V1A USB PCB when ordering the PCM.

The battery BMS has a ON/OFF switch, if you don't have swtich for your battery, you can just solder the two switch wires together.

The battery BMS also has a high temperature protection sensor; if the battery is too high in temperature, the BMS will cut off power to protect the battery.

With this 5V PCB, you can make a 5V USB output from your battery. We use this Decompression PCB for our Hailong-2 battery USB output, tigershark downtube battery USB output etc. This PCB is suitable for 8V-63V lithium batteries. Harness will be included.

The USB port does not include with the PCB, please be noted. The USB output is included with the battery case. We will solder the harness before shipment if we get to know which  battery case you are going to use; different cases require different connection for USB output, if the harness is not soldered when you get the item, please solder youself with the correct connection.

If the connection is wrong, there will be no output for the USB port.

13S 48V li-ion BMS for ebike lithium ion batteries. The continuous discharging current for the BMS is 20A. This BMS is with smallest dimension. It fits for our Hailong-2 casing, tigersharkcasing, junbo shark, new polly casing ebike batteries. If your battery case requires USB outlet, you can order the 5V USB PCB on our website.

E-bike BMS for downtube battery. This PCM has no ON/OFF switch, if your battery has ON/OFF switch, then this BMS is not suitable for your battery. This BMS is used for our down tube battery(hailong -1 casing), please click the above link for the battery case to ensure you wouldn't order the wrong bms before making the order. If your PCM is defective, you can buy this one for replacement. THe BMS is for 36V or 48V li-ion ebike batteries, Harness is included with the BMS. 

The model for the BMS is: PCM-L13S15-B14 or PCM-L13S15-B14(A-2); please see below video for the bms connection.

PCM for ebike bottle batteries, round shape batteries, 24V or 36V lithium batteries.

For bottle batery BMS connection diagram, we will send you by email.

48V 13S 20A battery BMS with small size(65*35*10MM) for ebike downtube batteries, Hailong batteries, Jumbo shark batteries or Dorado batteries.

Note, this BMS is only suitable for 48V/13S li-ion battery; it is not suitable for LiFePO4 battery.  

The continuous discharge current is 20A, pulse/max discharging current is 50A; The max charging current is 5A.  

If you use this BMS for Dorado battery, please short circuit the switch wires.

If you are looking for larger current BMS,you can order order this one for you battery: 48V 13S BMS for downtube battery.

BMS/PCM-24S for 72V LiFePO4, continuous discharge current 30A/50A and pulse discharge current being 120A

We also have smart BMS with bluetooth app for 24S battery: intelligent bms with software/app control