2S 13A 18650 Lithium Battery BMS

The 2S 13A 18650 Lithium Battery BMS is a protection board for building two-series lithium-ion battery packs. It supports two 3.6V or 3.7V cells, or two parallel cell groups, connected in series to produce a 7.4V nominal battery pack with a maximum fully charged voltage of 8.4V.

The board protects the battery pack against overcharging, excessive discharge, overcurrent and short circuits. It is suitable for compact rechargeable battery systems, portable electronics, robotics projects and custom DIY battery packs.

This BMS is useful for battery-pack builders, technicians, electronics hobbyists, robotics developers and DIY users across Ghana. DIYGH supplies lithium battery protection boards, 18650 battery accessories and power modules from Kumasi to customers nationwide.

Product Details:
Product Type: Lithium-ion battery BMS protection board
Battery Configuration: 2S
Compatible Cells: 3.6V or 3.7V lithium-ion cells, including 18650 cells
Nominal Battery-Pack Voltage: 7.4V
Maximum Fully Charged Voltage: 8.4V
Current Rating: Up to 13A, subject to the module version and operating conditions
Battery Arrangement: Two cells or two parallel cell groups connected in series
Protection Functions: Overcharge, over-discharge, overcurrent and short-circuit protection
Connection Type: Common charging and discharging terminals

Generic 2S 13A modules are commonly specified for 7.4V nominal and 8.4V fully charged lithium-ion packs. Current specifications vary by manufacturer, with some versions identifying 13A as the working rating and others specifying approximately 10A continuous current with a 13A overcurrent threshold.

Application:
Suitable for 2S 18650 battery packs, portable speakers, rechargeable lighting systems, robotics projects, small motors, portable electronics, DIY power banks, backup power projects, STEM practicals and custom lithium battery systems.

Important Usage Information:
This BMS is a battery protection board and does not replace a lithium battery charger. Use a suitable 8.4V lithium-ion charger for the completed 2S battery pack.

Use cells with similar capacity, voltage, internal resistance and condition. Follow the connection markings printed on the board carefully because incorrect wiring can damage the BMS, batteries or connected equipment.

This board is intended for standard 3.6V or 3.7V lithium-ion cells. Do not use it with LiFePO₄ batteries unless the board is specifically marked for LiFePO₄ chemistry.