12V 5200mAh Lithium-Ion Rechargeable Battery Pack (3S, 10A BMS, DC Plug and Jack)

The 12V 5200mAh lithium battery pack is made from high-quality lithium-ion cells connected in a 3S (3-series) setup. It gives a working voltage of about 11.1V–12.6V with a large 5200mAh capacity. That’s roughly 57Wh of stored energy in a pack small enough to hold in your hand.

A built-in Battery Management System (BMS) protects the pack from overcharging, over-discharging, over-current and short circuits, helping it last longer and work more safely. The pack comes ready to use with two pre-wired connectors:

• DC male plug: power output to your device.
• DC female jack: connect a 12.6V lithium charger here.

Many Wi-Fi routers, CCTV cameras and LED strips run on 12V, so this rechargeable 12V battery makes an excellent backup power supply during power outages. It’s also a favourite for robotics, RC projects, portable speakers and DIY electronics, where a lead-acid battery would be too heavy and bulky.

Key Features

• 12V lithium-ion battery pack (3S, 12.6V fully charged).
• 5200mAh capacity. Long runtime for 12V devices.
• Built-in 10A BMS protection. Overcharge, over-discharge, over-current and short-circuit protection.
• DC male plug for output and a DC female jack for charging, ready to use.
• Rechargeable hundreds of times.
• Lightweight and compact. Much lighter than lead-acid batteries.
• No memory effect. Recharge any time.
• Durable PVC wrap protects the cells.

Technical Specifications

How Long Will It Last?

Runtimes are estimates. Actual times depend on your device and usage.

How to Charge

1. Use a 12.6V lithium-ion battery charger (2A recommended).
2. Plug the charger into the DC female jack on the battery.
3. Most chargers have an LED that changes from red (charging) to green (full).
4. Unplug the charger when it’s fully charged.

⚠️ Important Safety Tips

• Only use a 12.6V lithium-ion charger. Never use a 12V adapter, car charger or lead-acid battery charger.
• Don’t exceed 10A of continuous load current.
• Don’t short-circuit the plugs or cables.
• Keep it away from heat, direct sun and water.
• Don’t puncture, crush or open the battery pack.
• Store it at about 50–60% charge if you won’t use it for a long time.
• Stop using it if the pack swells, leaks or gets very hot.

Applications

• Wi-Fi router backup during dumsor
• CCTV and security camera backup power
• 12V LED strips and portable lighting
• Robotics and RC projects (robot cars, Arduino builds)
• Portable Bluetooth speakers and amplifiers
• Medical, test and measurement devices (12V)
• DIY power banks and portable electronics
• STEM and final-year engineering projects

Works Great With

• 12.6V Lithium Battery Charger
• XL6009 Boost Converter
• LM2596 Step-Down Buck Module
• DC Barrel Jack Adapters
• 12V LED Strip

Package Includes

• 1 × 12V 5200mAh Lithium-Ion Battery Pack with BMS, DC plug and DC jack
• (Charger sold separately)