Powertac - 2600 mAh Lithium-ion 18650 Rechargeable Battery
Purpose-built for 18650-compatible torches and devices, the Powertac 2600mAh 18650 Rechargeable Battery delivers high energy density in a lightweight cylindrical cell. At 3.6V nominal and 2600mAh capacity, it's a reliable power source for tactical torches, EDC lights, and any 3.6V device where consistent output and low weight matter. Manufactured under ISO9001-2000 quality standards and tested to IEC (International Electrotechnical Commission) specifications for capacity, quality, and service life.
What sets this cell apart is the internal PCB protection circuit - a patented design that prevents over-voltage at 4.25V and under-voltage at 2.5V, safeguarding both the battery and the device it powers. Rated for over 500 charge cycles with 90% of initial capacity retained at 400 cycles, this is a battery built for repeated field use rather than a one-season replacement.
Features
- Internal PCB Protection: Patented protection circuit prevents over-voltage (cut-off at 4.25V) and under-voltage (cut-off at 2.5V), protecting the cell and connected device from damage during charge and discharge.
- High Capacity 18650 Cell: 2600mAh nominal capacity (2450mAh minimum) at 3.6V average - high energy density in a standard 18650 form factor weighing approximately 46g.
- Long Cycle Life: Rated for 500+ charge cycles with 90% of initial capacity retained at 400 cycles - built for regular use, not regular replacement.
- Wide Operating Temperature Range: Performs across -20°C to 50°C, reliable through cold overnight conditions and sustained use in Australian summer heat.
- Quality Tested to IEC Standards: Manufactured under ISO9001-2000 and independently tested to International Electrotechnical Commission standards for capacity, quality, and service life.
Specifications
- Brand: Powertac
- Cell Type: Lithium-Ion (Li-Ion) 18650 cylindrical rechargeable
- Nominal Capacity: 2600mAh
- Minimum Capacity: 2450mAh
- Nominal Voltage: 3.6V
- Cut-off Voltage: 3.0V
- Over-voltage Protection: 4.25V
- Under-voltage Protection: 2.5V
- Internal Impedance: ≤180 milliohm (with PTC)
- Max Charge Current: 1.5C
- Max Discharge Current: 1.5C (continuous)
- Charge Voltage: 4.2V
- Cycle Life: 500+ cycles (90% capacity retained at 400 cycles)
- Operating Temperature: -20°C to 50°C
- Diameter: 18 ±0.2mm
- Height: 66 ±0.2mm
- Weight: Approx. 46g
- Quality Standard: ISO9001-2000
- Testing Standard: IEC (International Electrotechnical Commission)
TacSource is your Official Powertac Supplier
Trusted by professionals in law enforcement, military & security sectors globally.
Premium Powertac Tactical Flashlights
Since 2006, Powertac has provided the ultimate lighting solutions for first responders and military personnel. As an American-owned company, they build rugged tactical lights designed to save lives.
- Trusted by Professionals: Used by the FBI, Secret Service, and hundreds of US police agencies.
- Battle-Tested Durability: Overbuilt for safety and reliability in extreme conditions.
- Guaranteed Quality: Every light is backed by our no-hassle lifetime warranty.
POWERTAC - MISSION CRITICAL LIGHTING
From the compact utility of EDC and Pen lights to the recoil-proof reliability of Weapon-Mounted systems, Powertac engineers a light for every objective. Whether the mission requires the massive throw of their Search & Rescue series or a discreet beam for daily carry, this brand delivers the ultimate illumination tools.
Trusted by the FBI, IDF, and first responders worldwide, these lights are built to withstand the toughest combat conditions. With industry-leading durability and a no-hassle lifetime warranty, Powertac is the gear professionals trust when lives are on the line.
Proven Reliability. Ultimate Performance.
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