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

12S BMS for 3.2V Lifepo4 battery pack, continous discharge current being could be 30A,  pulse/peak discharge current being 80A, suitable for 12S(36V) LiFePO4, phosphate battery and li-ion battery;

The BMS has 90 degree temperature protection sensor.

36V 10S lithium battery bms for customized battery building, COMcom(charging and discharging with the same COM)

1. Overcharge protection(Single cell 4.25V; 10S pack 42.5V);

2. Overdischarge protection(single cell 2.8V; 10S pack 28V)

3. Over current protection

4. Short circuit protection

5. Temperature protection

6. Balanced voltage

7. Discharging current/Peak discharging current: 15A/50A, 25A/60A, 35A/100A, 45A/180A, 60A/180A

8. Dimension: 59x34x9mm(for 15A BMS); 75x48x9mm(for 25A/35A/45A BMS); 80x61x16mm(for 50A/60A BMS);150x66x19mm(for 80A BMS); 166x65x24mm(for 100A BMS);

Recommend charging voltage: 42V

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).