# BMS module, 10S, 36V, 30A, with balancing, with heatsink, with thermistor

- Page: https://sigmanortec.ro/en/bms-module-10s-36v-30a-with-balance-with-radiator-with-thermistor
- Price: 76.36 RON
- Availability: In stock; 1-2 zile
- Reference: 9672 · EAN: 5947802973925
- Category: Electronic components > Modules for Batteries > BMS Boards
- Specifications: Technology: Lithium Ion; sway: Yes; Nominal Current: 30 A; Number of cells: 10S; Input Voltage: 36 V
- Package (shipping data): 0.039 kg
- Updated: 2026-10-17
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:49 (Europe/Bucharest)

## Description

Protects and manages 10S 36V Li-ion packs for applications up to 1000W, ensuring stable charging and discharging. Offers cell balancing for better autonomy and lifespan, overcharge, overdischarge, overcurrent and short circuit protections, includes heat sink for heat dissipation and thermistor for temperature monitoring.
The 10S BMS protection module, 36V, 30A, with balancing, heatsink, and thermistor is an electronic board designed to manage and protect Li-ion or LiPo battery packs made of 10 cells connected in series (10S), such as 18650 cells or equivalent. The board is installed between the cell pack, charger, and load, automatically interrupts charging or discharging when dangerous voltages appear on any cell, and balances the voltages between cells during charging. It is suitable for electric bikes and scooters, tools, portable speakers, battery storage systems, and any project powered by a 10S pack with up to 1000 W.
The board provides overcharge protection at 4.25 V per cell, overdischarge protection at 2.6 V per cell, overcurrent and output short-circuit protection, and an NTC thermistor attached to the board adds overtemperature protection when placed in direct contact with the battery pack. The maximum accepted charging current is 10 A, continuous discharge supported is up to 25 A, and in short peaks the board tolerates up to 30 - 40 A, at a nominal voltage of 36 V. The balancing function activates above 4.1 V per cell and uses a current below 100 mA, enough to correct small differences between cells, but not to compensate for worn cells or cells with different capacities.
Among the main features are the heatsink mounted on the power transistors, the 11-wire balance connector (noted in the text as B0 - B10), the B+ and B- pins for the battery pack, the separate P- and C- pins for the discharge output and charging input respectively, and the NTC thermistor for measuring pack temperature, while the control circuit is powered directly from the connected battery pack, without a separate power supply.
Specifications:
Operating voltage: 36 V (10S)
Maximum operating current: 30 A, in short peaks up to 40 A
Maximum power: 1000 W
Charging voltage: 42 VDC
Charging current: 10 A
Maximum continuous current: 25 A
Overdischarge protection voltage: 2.6 V per cell
Overcharge protection voltage: 4.25 V per cell
Balance start threshold: above 4.1 V per cell, current below 100 mA
Temperature protection: Yes, via NTC thermistor mounted on the board
Compatible battery type: Li-ion / LiPo 18650 or equivalent, 4.2 V per cell
Dimensions: 64 x 35 x 9 mm
Pinout:
Connector
Pin
Function
Battery pack
B-
Overall negative of the 10S pack, together with the negative of the balance connector
Balance connector (11 wires)
B0 (black wire)
0 V, same point as B-
Balance connector
B1 (red)
Approximately 4.2 V
Balance connector
B2 (yellow)
Approximately 8.4 V
Balance connector
B3 (red)
Approximately 12.6 V
Balance connector
B4 (yellow)
Approximately 16.8 V
Balance connector
B5 (red)
Approximately 21 V
Balance connector
B6 (yellow)
Approximately 25.2 V
Balance connector
B7 (red)
Approximately 29.4 V
Balance connector
B8 (yellow)
Approximately 33.6 V
Balance connector
B9 (red)
Approximately 37.8 V
Balance connector
B10 (yellow)
Approximately 42 V, same point as B+
Discharge output
P-
Load negative
Charging input
C-
Charger negative
Battery pack
B+
Overall positive, connected directly to the positive of the charger and the load
Usage:
First connect the overall negative of the 10-cell pack to the B- pin on the board, together with the black B0 wire of the balance connector.
Then solder, in increasing voltage order, the balance connector wires from B1 to B10 to the successive points between the cells, alternating red and yellow colors, so that B1 reaches approximately 4.2 V, B2 8.4 V, B3 12.6 V and so on up to B10, which connects to the final positive of the pack, at approximately 42 V.
Measure each voltage with a multimeter before soldering the corresponding wire, to avoid reversing the order and damaging the board.
Insert the balance connector into the board connector only after all wires have been soldered and checked.
Connect the final positive of the pack B+ directly to the positive of the charging connector and the positive of the discharge connector, without passing through the board.
Connect the negative of the charging connector to the C- pin and the negative of the discharge connector, toward the load, to the P- pin.
Solder the NTC thermistor on the board in direct contact with one of the pack cells and secure it with adhesive tape or thermal tape, so that overtemperature protection works correctly.
Do not power the board without the cell pack connected correctly, and do not reverse polarity on the charging or discharging connectors.
Charge the pack only with a charger for 10S Li-ion, with a charging voltage of 42 VDC and a current of maximum 10 A, connected to the charging connector.
Before first use, balance the cells by individually charging them to the same level and connecting them in parallel for one to two days, especially if the cells come from different sources or have different levels of wear.