The quest for more power, longer runtime, and superior reliability in high-drain applications just took a massive leap forward. TENPOWER, a leading innovator in lithium-ion technology, has officially launched its latest power cell: the INR21700-50XG. Engineered with advanced full-pole tab (all-pole tab) technology, this 21700 cell is set to redefine what’s possible for high-performance applications.
The Heart of the Beast: Unmatched Power in a Compact Size
At its core, the INR21700-50XG boasts a robust 5000mAh nominal capacity, offering substantial energy for extended operation. But where it truly shines is its staggering discharge capability.
- Max Continuous Discharge Current: A massive 90A (with 75°C thermal cut-off)
- Pulse Discharge Current: An incredible 140A for up to 3 seconds
- Ultra-Low Internal Resistance: Typically ≤4mΩ, ensuring minimal voltage sag and maximum efficiency under load
This combination of high capacity and extreme discharge rates makes it a perfect drop-in upgrade for applications that demand both endurance and explosive power.
Proven Performance and Rugged Reliability
TENPOWER doesn’t just promise these specs; they validate them through rigorous testing. The INR21700-50XG is built to last and perform consistently under demanding conditions.
- Superior Cycle Life: Maintains over 60% of initial capacity after 500 cycles at a punishing 40A continuous discharge.
- Wide Operating Temperature: Functions flawlessly in a broad range from -20°C to 60°C for discharge.
- Exceptional Safety: Passes a comprehensive suite of safety tests, including overcharge, short-circuit, crush, and thermal shock, adhering to the highest industry standards.
Real-World Quality: Exceeding Specifications
The proof is in the testing data. Recent production batches, like batch number X65PJ18, show real-world performance that often exceeds the already impressive nominal specs:
- Actual Capacity: 5075-5100mAh
- Actual Internal Resistance: 2.3-2.6mΩ
This consistent over-delivery on capacity and lower internal resistance provides engineers and enthusiasts with a reliable performance margin for their most ambitious projects.
Who is the INR21700-50XG For?
This battery is a game-changer for a wide array of high-power applications:
- High-Performance Power Tools: Drills, saws, and grinders that require instant torque.
- Electric Mobility: High-speed e-Bikes, e-Scooters, and drones.
- RC Hobbies: Race-grade drones and high-speed RC cars.
- Backup Power Systems & Portable Power Stations: Where high discharge is critical for inverters.
The Technology Behind the Power
The key to the INR21700-50XG’s performance lies in its full-pole tab design. This advanced manufacturing process significantly reduces the cell’s internal resistance compared to traditional tab designs. The result is higher discharge rates, improved thermal management, and enhanced overall efficiency and longevity.
Conclusion: Power, Redefined
With the INR21700-50XG, TENPOWER isn’t just releasing another battery; it’s setting a new standard for the 21700 form factor. It delivers a rare and powerful combination of high energy density and ultra-high discharge capability, all wrapped in a safe and durable package.
Ready to power your next innovation? The future of high-drain applications is here.
Key Specifications at a Glance:
- Model: INR21700-50XG
- Size: 21700 (21.5mm x 70.5mm)
- Nominal Capacity: 5000mAh
- Nominal Voltage: 3.6V
- Max Continuous Discharge: 90A (with 75°C cut-off)
- Pulse Discharge (3s): 140A
- Internal Resistance: ≤4mΩ
- Weight: ≤75g
Tags: #TENPOWER #INR2170050XG #21700 #LithiumIon #HighDrain #BatteryTech #PowerTools #Ebike #Drone #FullPoleTab #HighDischarge



