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The BAK 26650HC is a premium-grade 26650 lithium-ion battery engineered for reliable high-drain performance. This 2pcs bundle delivers a true 4500mAh capacity and a powerful 5C (20A) discharge rate, providing sustained, high-current power for demanding devices such as high-lumen tactical flashlights, cordless power tools, and portable energy systems.
Built with advanced Li-ion chemistry and manufactured by BAK, a global leader in battery technology, this cell offers excellent energy density, low internal resistance, and consistent performance under heavy loads. It is the ideal choice for users who demand both high capacity and reliable power output.
4500mAh True Capacity: Provides reliable, non-inflated 4500mAh energy for extended runtimes.
5C (20A) High Discharge Rate: Delivers a stable 20A continuous discharge current for high-power applications.
Excellent Energy Density: Packing high capacity into a compact 26650 form factor.
Proven Battery Technology: Manufactured by BAK with advanced Li-ion chemistry for consistent and reliable performance.
Standard 26650 Size: Perfectly fits standard 26650 battery compartments (26mm x 65mm).
Versatile Applications: Ideal for high-power flashlights, power tools, and DIY battery packs.
| Parameter | Specification |
|---|---|
| Brand / Model | BAK 26650HC |
| Chemistry | Li-ion (NMC) |
| Nominal Voltage | 3.7V |
| Typical Capacity | 4500mAh / 4.5Ah |
| Minimum Capacity | 4400mAh |
| Nominal Energy | 16.65Wh |
| Max. | |
| Continuous Discharge | 20A | Max. |
| Pulse Discharge (<10s) | ~35A | Standard Charge Current | 1.5A (0.33C) | Max. |
| Charge Current | 4.5A (1C) | Charge Cut-off Voltage | 4.20V ±0.05V (CC/CV) | Discharge Cut-off Voltage | 2.5V | Internal Resistance (AC 1kHz) | ≤18mΩ (typical) | Cycle Life (@ 1C CD, 100% DoD) | ≥300 cycles to 70% residual capacity | Cell Diameter | 26.2 ± 0.3 mm | Cell Height (Flat Top) | 65.3 ± 0.3 mm | Weight | ~93g | Top Type | Flat Top | Protection | None (PTC thermistor & safety vent only) | Charge Temperature | 0°C ~ 45°C | Discharge Temperature | -20°C ~ 60°C | Storage Temperature | -20°C ~ 35°C (recommend +15°C ~ +25°C) | Certifications | UN38.3, MSDS, IEC62133 | Packaging | 2 × BAK 26650HC cells (voltage-matched) |
High-Lumen Tactical Flashlights: Powers the brightest flashlights and searchlights with sustained 20A output.
Cordless Power Tools: Provides reliable high-current power for electric drills and small power tools.
Portable Power Stations: A solid core cell for building custom portable power banks.
Outdoor & Camping Gear: Long-lasting power for headlamps and portable outdoor radios.
DIY Battery Pack Assembly: Ideal for building custom 12V/24V battery packs.
Q1: What is the discharge current of this battery?
A1: This BAK 26650HC is rated for a 5C discharge rate, which equates to a stable 20A continuous discharge current (4500mAh × 5C), making it suitable for high-power applications.
Q2: Is this a genuine BAK battery?
A2: Yes. We source directly from authorized channels to ensure you receive 100% genuine BAK 26650HC cells.
Q3: What kind of charger should I use for this battery?
A4: You must use a charger specifically designed for 3.6V/3.7V Li-ion batteries with a 4.2V cut-off voltage. Do not use a standard AA/AAA Ni-MH charger.
Q4: Can I use this battery in series?
A5: Yes, you can use these batteries in series to build custom battery packs. However, always ensure your BMS (Battery Management System) is properly rated for the total current draw.
Free Shipping: Enjoy free shipping on all orders over $65. For orders under $65, the shipping cost is $8.99.
Delivery Time: Once shipped, orders typically arrive within 7–15 business days.
Easy Returns: We want you to be completely satisfied. If you're not, you can return your product within 30 days of receiving your order. Please ensure the items are unused and in their original condition. For return instructions, please contact our support team.
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They have been performing exactly as expected. Very reliable.
Having a spare is great. I keep one in my tool and one charging.
These batteries are solid. They work as promised and I am very happy with the performance.
I've been using these in my cordless drill for a month. They haven't lost any power yet.
Knowing these can handle 5C discharge allows me to push my devices harder without worrying about the battery.
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