12V 18650 Lithium Battery Pack with BMS and Charger

Key Features

• Built-in BMS — The BMS protection system guards against overcharge, overdischarge, short circuit and overcurrent.
• Cell Balancing — Balance across the cells is provided by the BMS.
• Long Cycle Life — It supports over 500 complete charge and discharge cycles.
• Stable 12V Output — Its 18650 cells give a stable 12V output voltage, and low self-discharge helps it keep its charge during storage.
• Standard DC Plug — It has a DC 5.5 * 2.1mm plug with clearly marked positive and negative poles.

Product Specifications

• Rated voltage: 12V
• Nominal voltage: 12.8V (approximately 14.6V at full charge)
• Charging voltage: 12.6V
• Discharge cut-off voltage: 10V (protected by BMS)
• Capacity: 10Ah-100Ah
• Cell model: Class A 18650
• Battery type: Lithium ion (Li ion)
• Interface type: DC 5.5 * 2.1mm plug
• Working temperature: Charging 0 ° C~45 ° C; discharging -20 ° C~60 ° C

What It Is / How It Works

This 12V battery pack is built from Class A 18650 cells, a rechargeable lithium-ion format used in many portable power builds.

Who It's For / Use Cases

Battery packs like this suit people who want portable 12V power for hobby and light-duty projects, such as DIY builds and small electronics. It is suitable for various 12V devices, such as solar energy systems, LED light strips, electric toys and monitoring equipment.

How to Use / Care

1. Use the pack to power 12V devices such as solar energy systems, LED light strips and RC models.
2. Connect the device to the DC 5.5 * 2.1mm plug, matching the marked positive and negative poles.
3. Charge at a current of 3A or less, and keep charging within 0 ° C to 45 ° C.

How to Choose

Start with the capacity your device needs to run. The range listed for this pack is 10Ah-100Ah, so pick the capacity that matches how long you need power. Check that your device runs on 12V and that its draw stays within the pack's discharge limits. Keep the charging current at or below 3A.

Frequently Asked Questions

What output voltage does the pack give?
The rated voltage is 12V. The nominal voltage is 12.8V, and it reaches approximately 14.6V at full charge.

What protection does the BMS provide?
The BMS protection system guards against overcharge, overdischarge, short circuit and overcurrent. Cell balance is provided by the BMS, and the discharge cut-off voltage is 10V.

What cells are inside the pack?
The pack is made of Class A 18650 cells that give a stable 12V output. Low self-discharge helps it keep its charge during storage.

How many charge cycles does it support?
It supports over 500 complete charge and discharge cycles. The listed capacity range is 10Ah-100Ah.

What are the charging limits?
Charge at 3A or less, between 0 ° C and 45 ° C. Discharging is rated from -20 ° C to 60 ° C.