12V 3000MAH RECHARGEABLE LITHIUM-ION BATTERY with charger

The RQ DC 12400 is a complete 12V rechargeable battery system consisting of a 3000mAh lithium-ion battery pack and a matching charger . The battery delivers a nominal voltage of 12.6V when fully charged (typical for 3-cell Li-Ion in series: 3×4.2V = 12.6V). The actual capacity is 3000mAh , ensuring reliable runtime for various portable devices. The battery features a flat top cell type with a built-in protected circuit – a critical safety feature that includes over-voltage protection , over-charging protection , over-discharging protection , and short-circuit protection . These safeguards prevent damage to the battery and connected equipment, as well as reduce fire hazards associated with lithium-ion cells. The battery is rated for more than 500 recharge cycles , offering long-term value. The included charger connects via a 5.5mm x 2.1mm DC interface – a common barrel jack standard. The battery housing is made of blue plastic and is mercury free , complying with environmental standards. The unit is sold as 1 piece (battery + charger). Specifications Parameter Details Brand RQ Model DC 12400 Quantity 1 Piece Color Blue Material Plastic Cell Type Lithium Ion Battery Model 12400 Head Type Flat Top Marked Capacity 3000mAh Actual Capacity 3000mAh Voltage 12.6V (nominal 12V) Rechargeable Yes Rechargeable Times More than 500 cycles Built-in Protected Circuit Yes Over Voltage Protection Yes Short-Circuit Protection Yes Over-Charging Protection Yes Over-Discharging Protection Yes Mercury Free Yes Interface 5.5 × 2.1 mm (DC barrel) Includes Charger Yes (implied by title and interface) Applications LED lighting – power 12V LED strips, display lighting, or portable lamps. Security cameras – run IP or analog cameras in locations without mains power. Portable speakers – upgrade or replace internal batteries. DIY electronics projects – Arduino, Raspberry Pi, motor drivers, or small robots. Cooling fans – power 12V fans for ventilation or cooling vests. Electric tools – small screwdrivers, soldering irons, or test equipment. Backup power – for routers, modems, or alarm systems during outages.